Identification_Information: Citation: Citation_Information: Originator: Laurel G. Woodruff Originator: William F. Cannon Originator: Connie L. Dicken Originator: James P. Bennett Originator: Suzanne W. Nicholson Publication_Date: 2003 Title: Bedrock, soil, and lichen geochemistry from Isle Royale National Park, Michigan Geospatial_Data_Presentation_Form: Series_Information: Series_Name: U.S. Geological Survey open-file report Issue_Identification: 03-276 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Description: Abstract: This is a report of geochemical data from various media collected on Isle Royale, a large island in northeastern Lake Superior. Isle Royale became a national park in 1940 and was designated as a wilderness area in 1976. USGS sampling began in 1996 as part of a larger project on the Midcontinent Rift in the Lake Superior region. Data are given in nine Microsoft Excel spreadsheets. All the data are newly acquired by the USGS. Purpose: USGS sampling on Isle Royale began in 1996 as part of a larger project on the geology of the Midcontinent rift in the Lake Superior region and continued through 2000. Sampling began with collecting bedrock samples to characterize the geochemistry of the volcanic rocks that make up the much of the island, as well as samples representative of the minor native copper mineralization found on the island. Preliminary results from the bedrock study indicated, among other findings, that basaltic bedrock on the island had no detectable mercury, but that there was an association between native copper mineralization and trace amounts of mercury (Cannon and Woodruff, 1999). This finding and the recognition by the National Park Service that 6 of 32 inland lakes on Isle Royale have mercury levels in game fish that exceed State of Michigan acceptable levels for human consumption (Kallemeyn, 2000) resulted in renewed sampling on the island focused more on environmental issues. To evaluate atmospheric inputs of mercury and other elements to soil geochemistry, regionally distributed samples of both soils and lichens were collected as paired samples across the entire island. At each soil sample site, three epiphytic (grows in trees) lichen species, Evernia mesomorpha, Hypogymnia plysodes, and Parmelia sucata, were always collected. At some sites Cladina rangiferina, a lichen that grows on bare bedrock and soil surfaces, was also collected. The occurrence of Cladina rangiferina on the island is more limited, and so this lichen species was not collected at all sites A high density of soil samples was collected within three individual watersheds (Sargent Lake, Lake Wagejo, and Lake Richie) for a more localized study that evaluated the terrestrial distribution of mercury and other elements of environmental concern. These lakes were chosen using data from Kallemeyn (2000) that showed that Sargent Lake and Lake Wagejo have high mercury in fish, whereas Lake Richie, which is similar in size to Sargent Lake, does not. As part of this study on the terrestrial contribution of mercury to lakes, long cores of lake sediments were recovered from Sargent Lake and Lake Richie using a modified Livingston piston sampler. For an ancillary study that evolved from the study on the distribution of mercury in certain watersheds, some soil samples were collected to evaluate the impact of forest fire on soil geochemistry, deliberately sampling within and outside areas on the island that burned in severe forest fires in 1936. To complete bedrock sampling on the island, rock samples from the Copper Harbor Formation, a sedimentary unit that occurs on the southeastern part of the island were collected in 1999. Supplemental_Information: The nine data files included with this report are: 1) Volanic_bedrock.xls -- Geochemical analyses of basalt, andesite and rhyolite from the Portage Lake Volanics exposed on Isle Royale 2) Sedimentary_bedrock.xls -- Geochemical analyses of sandstone and conglomerate matrix collected from the Copper Harbor Formation 3) Mineralized_rock.xls -- Geochemical analyses of rocks, sediment, and stamp sands with minor native copper mineralization collected from mineralized veins and mine dumps 4) O_horizon.xls -- Geochemical analyses of organic O-horizon organic material 5) A_horizon.xls -- Geochemical analyses of A-horizon and E-horizon mineral soils 6) C_horizon.xls -- Geochemical analyses of C-horizon mineral soils 7) Lichen.xls -- Geochemical analyses of four lichen species 8) Sargent_Lake_core.xls -- Geochemical analyses of sediment lake core collected from Sargent Lake, Isle Royale 9) Lake_Richie_core.xls -- Geochemical analyses of sediment lake core collected from Lake Richie, Isle Royale Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1996 Ending_Date: 2000 Currentness_Reference: This report presents all the geochemical data from samples collected by the USGS from 1996 to 2000. Status: Progress: Complete Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -89.25 East_Bounding_Coordinate: -88.42 North_Bounding_Coordinate: 48.25 South_Bounding_Coordinate: 47.75 Keywords: Theme: Theme_Keyword: geochemistry Theme_Keyword: soil Theme_Keyword: lake sediments Theme_Keyword: lichen Theme_Keyword: surficial Theme_Keyword: mercury Theme_Keyword: basalt Theme_Keyword: native copper Place: Place_Keyword: Isle Royale Place_Keyword: National Park Place_Keyword: Michigan Place_Keyword: Lake Superior Place_Keyword: Keweenaw County Access_Constraints: none Use_Constraints: Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the type of modification they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes they have made were approved by the U.S Geological Survey. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Laurel Woodurff Contact_Position: Geologist Contact_Address: Address_Type: mailing Address: U.S. Geological Survey, 2280 Woodale Drive City: Mounds View State_or_Province: Minnesota Postal_Code: 55112 Country: USA Contact_Voice_Telephone: 763.783.3291 Contact_Electronic_Mail_Address: woodruff@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: Figure 1 Browse_Graphic_File_Description: Map showing the location of study area and distribution of soil and lichen sample sites for which analyses are reported. Browse_Graphic_File_Type: jpeg Data_Set_Credit: U.S. Geological Survey Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: USGS ANALYSES -- Samples analyzed by the U.S. Geological Survey includes all analyses contained in the data files Volcanic_bedrock.xls, Sedimentary_bedrock.xls, Mineralized_rock.xls, A_horizon.xls, C_horizon.xls, Sargent_Lake_core.xls, and Lake_Richie_core.xls. Analytical results were compared to results for standard reference materials. Data quality checks were performed both at an analytical laboratory (XRAL) and by the USGS. The first level of quality control checks occurred at XRAL. XRAL Laboratories is accredited to the ISO 9002, 1994 standard (ANSI-RAB 01298 and NACB 9555). The laboratory's quality control protocol is to insert a reagent blank and a reference sample material with every batch of 20 samples to measure the analytical accuracy. Duplicate samples are analyzed at the end of the sample set to measure analytical variance as well as sample variance. Data passing the quality control criteria was sent to the USGS and imported into the Laboratory Information Management System (LIMS). The second level of data validation was performed at the USGS. All samples submitted to XRAL are accompanied with a set of USGS in-house reference samples submitted at the rate of 10%. Using a program within the LIMS, the data for the reference samples was evaluated by comparing the "obtained" analytical value to the "expected" value for each element. The values must fall within the range of acceptance, which varies between +/- 5% to +/-20% depending on the analytical method. UNIVERSITY OF WISCONSIN ANALYSES -- Samples analyzed by Soil and Plant Analysis Laboratory, University of Wisconsin, Madison, Wisconsin include O_horizon.xls and Lichen_xls. Analytical results were compared to results for standard reference materials. The first level of quality control checks occurred at the Soil and Plant Analysis Laboratory through the use of duplicates, blanks, and reference standards. Completeness_Report: Data set is complete Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: All sample sites were located using a GPS instrument. Maximum observed variation in repeated GPS readings taken at the same site is in the fourth decimal place (0.000x degree) and estimated positional accuracy is approximately +/- 50 meters. Lineage: Process_Step: Process_Description: Sample collection: Geochemical sample media include bedrock, mineralized rock, lake sediments, different soil horizons and four species of lichens (Figures 2 and 3). Because of restrictions on sampling within a wilderness park, rock samples were collected from mine dumps or loose blocks obviously fallen from outcrop. All rock samples were trimmed in the field to remove weathered material, and further trimmed and hand selected during preparation to minimize contribution from weathered or altered surfaces. Samples of native copper mineralized rock typically were composite chip samples collected from mine dumps. Descriptions recorded in the field are included in the data files. Reconnaissance soil sample sites typically were from upland areas. Within the Sargent Lake and Lake Richie watersheds both upland and lowlands (but not wetland) sites were sampled. Soil samples were collected from soil pits dug with a shovel and extended with a hand auger. Sample pits were completed to the C-horizon or to a depth dictated by the presence of impenetrable rock. From each pit, soil from different horizons was collected so that each sample site has multiple geochemical analyses, each representing a different soil layer. All samples were stored in perforated polyethylene bags (Hubco Tyvek®). During the first year of soil sampling, which concentrated within the Sargent Lake and Lake Wagejo watersheds, material from the O-horizon was not collected. The O-horizon is the organic matter that lies on top of a mineral soil. The organic layer is divided into Oi (forest litter), Oe (forest duff) and Oa (humus) horizons. Forest litter is not decomposed, and contains identifiable dead plant material. Forest duff is partially decomposed organic material that may underlie the litter layer. Humus is completely decomposed, non-identifiable organic material. At each soil sample site, with the exceptions noted above, Oe-horizon material was collected, if available. Field descriptions discriminate between forest litter that is not decomposed and more decomposed forest duff, but do not attempt to distinguish duff from humus. Samples from Oe-horizons typically were grab samples collected from the soil plug removed from the sample pit. Litter material, when collected, was composited from material in the area of the sample site. The nature of the original material (e.g., needles versus leaves) was noted, as were the dominant tree species. The upper mineral soils typically were classified as A-horizon, indicating some accumulation of organic carbon, and were distinguished from underlying soil horizons by changes in color. A-horizon soils were collected from most sample sites, with material composited from the entire thickness of the horizon. At some sites, a very thin A-horizon overlay an E-horizon, a zone of eluviation, easily distinguished by its light, buff or gray color. A limited number of E-horizon samples were also collected when little or no A-horizon soil was present. Subsoil samples typically were composed of weathered parent material, which, on Isle Royale, is either bedrock or glacial deposits on bedrock. The depth of collection for C-horizon soil samples in areas of thin glacial cover typically was constrained by the depth to bedrock, with samples collected immediately above the bedrock surface. In areas of thick glacial cover, collection depths usually were 60 – 80 cm, which typically was the depth to parent glacial material. In a few cases, multiple samples were collected when obvious changes in color or texture were noted. Lichen samples were collected by hand from trees in the immediate vicinity of soil sample sites and from bedrock, if available. The three epiphytic lichen species collected, Evernia mesomorpha, Hypogymnia plysodes, and Parmelia sucata, are easy to identify in the field and do not require chemical tests for identification. Each lichen species was picked separately and cleaned as well as possible in the field. Epiphytic lichens were collected without gloves only from evergreen species, with one exception in a hardwood maple forest where no evergreen trees were present. At a site, all three species were collected from multiple individuals of a single tree species (e.g., white spruce or balsam fir), but the single tree species varied from site to site, depending on availability. The result of this sampling method is collection of multiple thalli representing an aggregate sample from several trees in an area. Picking extended from near ground level to as high as could be reached when standing on the ground, approximately 1.5 – 2 meters. Lichens picked from dead or downed trees may have originally been higher in the air prior to tree mortality and are so noted. Cladina rangiferina was collected from bedrock surfaces by hand. Only fresh, apparently healthy lichen were picked in the field. At each site, about 20 grams of lichen was stored in perforated polyethylene bags (Hubco Tyvek®). Samples were air dried to ambient moisture levels prior to shipping to the USGS National Wildlife Health Center in Madison, Wisconsin for analysis. Lake sediment samples from Sargent Lake and Lake Richie were collected using a modified Livingston piston sampler (Wright, 1967). To obtain the cores, researchers from the USGS flew to Isle Royale in the winter of 1999 in a U.S. Forest Service Beaver seaplane, landing on the ice of each lake. Lake sediment core was obtained through the ice from near the deepest part of each lake, using lake bathymetry maps as guides. The coordinates for the site on Sargent Lake are: latitude 48.0820; longitude 88.6548. The coordinates for the site on Lake Richie are: latitude 48.0420; longitude 88.6930. Care was taken to sample from areas away from shore and where the lake bottom was relatively flat. At each lake the coring procedures were similar. After augering a hole through the ice, the depth of the water was measured with a Vexilar® portable sounder. Core was recovered through 11 meters of water in Sargent Lake and 9.75 meters of water in Lake Richie. To obtain the first core from an undisturbed bottom, the piston core apparatus was lowered to the sediment/water interface (using 2 meter extension drive rods) and then advanced the depth of the 1 meter core barrel. Prior to removing the piston corer, a sleeve of 15 cm (diameter) PVC was assembled and lowered through the hole in the ice around the drive rods and piston corer to act as a casing and guide for successive cores. The casing was pushed about 30 cm into the lake bottom to provide a firm anchor. With the casing in place, the piston corer was removed, and the 1 meter core extracted. Each core was immediately wrapped in plastic and aluminum foil and stored in a core box. The piston corer was then reintroduced into the original hole through the casing, and advanced another length of the core barrel (1 meter). The procedure was repeated until 5 meters of core were collected from Sargent Lake and 6 meters of core were collected from Lake Richie. Visual inspection of the cores as they were removed suggested little or no slumping in the borehole, although some compaction in the core was apparent. The length of available drive rods limited the length of core recovery at Sargent Lake, but at Lake Richie coring ended when advancement of the core barrel through compacted sediment was no longer possible. Both sets of long cores were split lengthwise immediately following fieldwork, and one half was preserved and the other half was further split for geochemical analysis Process_Step: Process_Description: Sample preparation: Rocks: Rocks were crushed to 0.5 cm fragments in a jaw crusher and fed into a ceramic plate pulverizer where fragments were reduced to approximately minus 100-mesh. Each pulverized sample was split, with a portion submitted for geochemical analysis and a portion archived. Clean quartz rock and sand were crushed and pulverized between samples to minimize cross-contamination. Soils: Soil samples were air-dried and disaggregated in a soil grinder, if necessary. Samples were then sieved to <63 micrometers prior to analysis. Samples were not ground. Lake Sediment Cores: The top meter of core from each lake was composited in 5 cm intervals. Samples from the remaining cores from each lake were collected in 2 cm intervals every 10 cm. Splits were placed in trace-element-free cardboard cans and dried overnight in a 50o C oven. Prior to analysis, samples were completely pulverized in a shatter-box. Lichen and O-horizon: Upon arrival in Madison, Wisconsin, lichens and O-horizon organic material were extracted from the bags. Lichen samples were manually cleaned of debris, bark, and other foreign matter. Handling of tissue was with bare hands, which were washed between samples. Hand contact with tissues was only a few seconds for each thallus. Two to four grams of cleaned samples were placed in clear plastic bags and labeled for chemical analyses. Both lichen and O-horizon samples were ground to a powder in a stainless steel Wiley ED-5 mill using a 2 mm screen. After grinding the samples were placed in plastic vials and either stored in a desiccator or re-dried just prior to weighing for analysis. Process_Step: Process_Description: Inductively Coupled Plasma-Atomic Emission Spectroscopy. Forty major, minor, and trace elements are determined in geological materials by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The sample is decomposed using a mixture of hydrochloric, nitric, perchloric, and hydrofluoric acids at low temperature. The digested sample is aspirated into the ICP-AES discharge where the elemental emission signal is measured simultaneously for the forty elements. Calibration is performed by standardizing with digested rock reference materials and a series of multi-element solution standards. The 40 elements analyzed are listed below with their reporting ranges. For samples containing less than the lower limit of detection, the notation b.d. (below detection) is entered into the value field. >Element Concentration Range >Aluminum, Al 0.005 - 50% >Calcium, Ca 0.005 - 50% >Iron, Fe 0.02 - 25% >Potassium, K 0.01 - 50% >Magnesium, Mg 0.005 - 5% >Sodium, Na 0.005 - 50% >Phosphorous, P 0.005 - 50% >Titanium, Ti 0.005 - 25% >Silver, Ag 2 - 10,000 ppm >Arsenic, As 10 - 50,000 ppm >Gold, Au 8 - 50,000 ppm >Barium, Ba 1 - 35,000 ppm >Beryllium, Be 1 - 5,000 ppm >Bismuth, Bi 50 - 50,000 ppm >Cadmium, Cd 2 - 25,000 ppm >Cerium, Ce 5 - 50,000 ppm >Cobalt, Co 2 - 25,000 ppm >Chromium, Cr 2 - 25,000 ppm >Copper, Cu 2 - 15,000 ppm >Europium, Eu 2 - 5,000 ppm >Gallium, Ga 4 - 50,000 ppm >Holmium, Ho 4 - 5,000 ppm >Lanthanum, La 2 - 50,000 ppm >Lithium, Li 2 - 50,000 ppm >Manganese, Mn 4 - 50,000 ppm >Molybdenum, Mo 2 - 50,000 ppm >Niobium, Nb 4 - 50,000 ppm >Neodymium, Nd 9 - 50,000 ppm >Nickel, Ni 3 - 50,000 ppm >Lead, Pb 4 - 50,000 ppm >Scandium, Sc 2 - 50,000 ppm >Tin, Sn 50 - 50,000 ppm >Strontium, Sr 2 - 15,000 ppm >Tantalum, Ta 40 - 50,000 ppm >Thorium, Th 6 - 50,000 ppm >Uranium, U 100 - 100,000 ppm >Vanadium, V 2 - 30,000 ppm >Yttrium, Y 2 - 25,000 ppm >Ytterbium, Yb 1 - 5,000 ppm >Zinc, Zn 2 - 15,000 ppm MERCURY ANALYZED BY CONTINUOUS FLOW-COLD VAPOR ATOMIC ABSORPTION SPECTROMETRY For determination of mercury a 0.1g of sample is digested using a mixture of nitric and hydrochloric acids. Potassium permanganate, sulphuric acid and potassium persulphate are added to the solution, followed by a NaCl-hydroxylamine solution and then the solution is diluted to 25mL. It is mixed thoroughly, allowed to settle and then transferred to the auto sampler rack of the Perkin-Elmer Flow Injection Mercury System, FIMS-100. The FIMS-100 is a cold-vapor atomic absorption mercury analyzer, which determines the mercury concentration in a solution after it has been liberated as vapor using stannous chloride reducing agent. The absorption of the sample is measured using a mercury lamp at 253.7nm. The lower reporting limit of 0.02 ppm mercury. Samples containing less than 0.02 ppm are assigned a value of 0.01 in the data tables. ARSENIC ANALYSIS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY Arsenic was determined by weighing 0.1 g of sample into a zirconium crucible. Approximately 0.75 g of sodium peroxide is added and mixed. The mixture is heated in a muffle furnace set at 750°C for four minutes. The sample is cooled then 15 ml of water and 5 ml of concentrated HCl is added. The mixture is shaken and 0.25 ml of an ascorbic acid KI solution is added then diluted with 20% HCl and let to stand overnight. Arsenic is then measure using hydride generation atomic absorption spectrometry. The optimum concentration range without sample dilution is 0.6 ppm to 20 ppm. SELENIUM ANALYSIS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY Selenium is determined by weighing .25 g of sample into a test tube, adding a mixture of nitric, hydrofluoric and perchloric acids and heating. After the solution is cooled hydrochloric and nitric are added, heated again and cooled. The samples are diluted and analyzed using hydride generation atomic absorption spectrometry. The expected analytical range for selenium is 0.2 to 4 ppm. TOTAL CARBON ANALYSIS BY AUTOMATED CARBON ANALYZER Total carbon is determined by the use of an automated carbon analyzer. A weighed sample is combusted in an oxygen atmosphere at 1370°C to oxidize carbon to carbon dioxide. Moisture and dust are removed and the carbon dioxide gas is measured by a solid state infrared detector. CARBONATE CARBON ANALYSIS BY COLUMETRIC TITRATION Carbonate carbon is determined as carbon dioxide by coulometric titration. The sample is treated with hot 2N perchloric acid and the evolved carbon dioxide is passed into a cell containing a solution of monoethanolamine. The carbon dioxide, quantitatively absorbed by the monoethanolamine, is coulometrically titrated using platinum and silver/potassium-iodide electrodes. The lower reporting limit is 0.01% carbon dioxide and samples containing up to 50% carbon dioxide may be analyzed. Sample size is adjusted from 0.5 g for the range 0.01 to 5% carbon dioxide, 0.1 g for the range 5 to 10% carbon dioxide, and 0.02 g for greater than 10% carbon dioxide Organic carbon is calculated as the difference between total carbon and carbonte carbon, TOTAL SULFUR ANALYSIS BY AUTOMATED SULFUR ANALYZER Total sulfur is determined by using an automated sulfur analyzer. Approximately 0.25 g of sample is mixed with iron chips and LECOCEL and is heated in a combustion tube in a stream of oxygen at high temperature. Sulfur is oxidized to sulfur dioxide. Moisture and dust are removed and the sulfur dioxide gas is then measured by a CS-244 infrared detector. WAVE-LENGTH DISPERSIVE X-RAY DIFFRACTION (WDXRF) Ten major elements were determined in rocks by wavelength dispersive X-ray fluorescence spectrometry. The sample is first ignited, then fused with lithium tetraborate and the resultant glass disc is introduced into a wavelength dispersive X-ray spectrometer. The disc is irradiated with X-rays from an X-ray tube. X-ray photons emitted by the elements in the sample are counted and concentrations determined using previously prepared calibration standards. In addition to 10 major elements, the method provides a gravimetric loss-on-ignition. The reporting ranges for WDXRF are: Element Lower limit of detection (%) >SiO2 0.04 >Al2O3 0.04 >Fe2O3 0.01 >MgO 0.03 >CaO 0.003 >Na2O 0.06 >K2O 0.006 >TiO2 0.003 >P2O5 0.006 >MnO 0.001 INSTRUMENTAL NEUTRON ACTIVATION BY LONG COUNT (INAA) Some trace elements in rocks were analyzed using instrumental neutron activation analysis. INAA selectively measures radioactive nuclide activity produced by nuclear reactions on naturally occurring isotopes. The activity of the indicator radionuclide produced during irradiation is directly proportional to the amount of the element in the sample. The analytical determination is made by comparing the induced activity in the sample with well-characterized standards activated under identical conditions of neutron flux. The activities of the samples and standards are measured using gamma-ray spectroscopy. Gamma-ray radiation emitted by a radionuclide is converted to an electrical signal by a semiconductor detector. A multichannel analyzer analyzes the electrical signal. Semiconductor detectors, such as high-purity and lithium-drifted germanium detectors, are used to exploit their high resolution. Spectra produced are analyzed by software that locates and identifies peaks, and calculates the area of each peak. The reporting ranges for INAA are: Element Lower limit of detection (ppm) >K 100 >Ba 100 >Fe 10 >Ni 10 >Sr 10 >Zr 10 >Na 1 >Zn 1 >Cr 0.5 >Nd 0.5 >Rb 0.1 >As 0.1 >Co 0.05 >Cs 0.05 >Ho 0.05 >Sb 0.05 >Sm 0.05 >Th 0.05 >U 0.05 >Yb 0.05 >Eu 0.01 >Hf 0.01 >La 0.01 >Lu 0.01 >Sc 0.01 >Ta 0.01 >Tb 0.01 >Au 0.0005 Spatial_Data_Organization_Information: Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: decimal degrees Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: A_horizon.xls Entity_Type_Definition: Multi-element chemical analyses for A-horizon soil samples. Includes site identification, latitude, longitude, year the sample was collected, and the estimated thickness of the sampled horizon. File gives quantitative results for 28 elements. Additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. These eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Nd (2), Sn (5), Ta (40), Th (6), and U (100). Ga is excluded as the relative percent difference between duplicates were typically > 25%. Attribute: Attribute_Label: Sample Site Attribute_Definition: Unique identification number for sample site Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.8 Range_Domain_Maximum: 48.2 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.25 Range_Domain_Maximum: -88.43 Attribute_Units_of_Measure: decimal degree Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: YEAR Attribute_Definition: Year sample was collected Attribute: Attribute_Label: THICKNESS Attribute_Definition: Thickness of horizon sampled in centimeters. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.5 Range_Domain_Maximum: 30.5 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Al % Attribute_Definition: Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.10 Range_Domain_Maximum: 9.06 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca% Attribute_Definition: Concentration of calcium in weight percent determined by inductively coupled plasma emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.25 Range_Domain_Maximum: 4.62 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: Concentration of iron in weight percent determined by inductively coupled plasma atomi emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.78 Range_Domain_Maximum: 7.33 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.11 Range_Domain_Maximum: 1.84 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.20 Range_Domain_Maximum: 3.81 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 2.13 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.27 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 155 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ba ppm Attribute_Definition: Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 44 Range_Domain_Maximum: 804 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 11 Range_Domain_Maximum: 75 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 49 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 226 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 1300 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7 Range_Domain_Maximum: 44 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 26 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 102 Range_Domain_Maximum: 7090 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: values below detection limit of 4 ppm Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 34 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 110 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates values below the detection limit of 4 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 110 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 30 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: Concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 64 Range_Domain_Maximum: 197 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 38 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute_Type: Integer Attribute_Width: 3 Attribute: Attribute_Label: Zn ppm Attribute_Definition: Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Double Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 599 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: Concentration of arsenic in parts per million determined by atomic absorption spectrophotometry. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.1 Range_Domain_Maximum: 12.6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Se ppm Attribute_Definition: Concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates values below the detection limit of 0.6 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 8.6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute_Type: Integer Attribute_Width: 3 Attribute: Attribute_Label: T_C Attribute_Definition: Concentration of total carbon in weight percent determined by an automated carbon analyzer; n.a. indicates samples was not analyzed for carbon. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 1.11 Range_Domain_Maximum: 38.10 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: S % Attribute_Definition: Concentration of sulfur in weight percent determined by automated sulfur analyzer; n.a. indicates sample was not analyzed for sulfur; b.d. indicates content below detection limit of 0.05%. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.18 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry; b.d. indicates Hg content below detection limit of 0.02 ppm. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 0.37 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute_Type: Integer Attribute_Width: 3 Detailed_Description: Entity_Type: Entity_Type_Label: C_horizon.xls Entity_Type_Definition: Multi-element chemical analyses for C-horizon soil samples. Includes site identification, latitude, longitude, year the sample was collected, and the estimated thickness of the sampled horizon. File gives quantitative results for 28 elements. Additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Nd (2), Sn (5), Ta (40), Th (6), and U (100). Ga is excluded because the relative percent difference between duplicates was consistently >25%. Attribute: Attribute_Label: Sample Site Attribute_Definition: Unique identification number for sample Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.85 Range_Domain_Maximum: 48.15 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.45 Range_Domain_Maximum: -89.22 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Year Attribute_Definition: Year sample was collected Attribute: Attribute_Label: Collection_depth Attribute_Definition: estimated depth in soil pit where sample was collected Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 107 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Al % Attribute_Definition: Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.67 Range_Domain_Maximum: 9.21 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca % Attribute_Definition: Concentration of calcium in weight percent determined by inductively couple plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.14 Range_Domain_Maximum: 7.09 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: Concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.94 Range_Domain_Maximum: 8.37 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.08 Range_Domain_Maximum: 2.40 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.56 Range_Domain_Maximum: 5.31 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.26 Range_Domain_Maximum: 2.35 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.25 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.17 Range_Domain_Maximum: 1.23 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ba ppm Attribute_Definition: Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 34 Range_Domain_Maximum: 797 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13 Range_Domain_Maximum: 93 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 49 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 544 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 11 Range_Domain_Maximum: 1160 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 43 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 31 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 188 Range_Domain_Maximum: 1790 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: detection limit Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 33 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 203 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates values below the detection limit of 4 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 27 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7 Range_Domain_Maximum: 37 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: Concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 59 Range_Domain_Maximum: 220 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 52 Range_Domain_Maximum: 252 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute_Type: Integer Attribute_Width: 3 Attribute: Attribute_Label: Y ppm Attribute_Definition: Concentration of yttrium parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Double Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 38 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 19 Range_Domain_Maximum: 134 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: Concentration of arsenic in parts per million determined by atomic absorption spectrophotometry. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 25.2 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute_Type: Integer Attribute_Width: 3 Attribute: Attribute_Label: Se ppm Attribute_Definition: Concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates values below the detection limit of 0.6 ppm Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 2.70 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry. b.d; indicates Hg content below detection limit of 0.02 ppm. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 0.27 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: Mineralized_rock.xls Entity_Type_Definition: Multi-element chemical analyses for mineralized rock samples collected from native copper mine dumps and mineralized areas on Isle Royale. Includes sample field number, latitude, longitude, and the source of the mineralized rock sample. Quantitative results for 31 elements are included. Nine additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. Those elements not included and their detection limits in parts per million are: Au (8), Be (1), Cd (2), Eu (2), Ho (4), Mo (2), Yb (1), and U (100). Ga is excluded because the relative percent difference between duplicates was consistently >25%. Attribute: Attribute_Label: Field No. Attribute_Definition: Unique identification number for sample Attribute: Attribute_Label: Latitude Attribute_Definition: latitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.91 Range_Domain_Maximum: 48.15 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.50 Range_Domain_Maximum: -89.20 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Mineralized_rock_source Attribute_Definition: mine dump or area where sample was collected Attribute: Attribute_Label: Al % Attribute_Definition: Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.20 Range_Domain_Maximum: 9.90 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca % Attribute_Definition: Concentration of calcium in weight percent determined by inductively couple plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.80 Range_Domain_Maximum: 21.00 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: Concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.24 Range_Domain_Maximum: 8.70 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 7.24 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 4.00 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 6.00 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below the detection limit of .0005%. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.11 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.99 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ag ppm Attribute_Definition: Concentration of silver in parts per million determined by inductively coupled plasma atomic emission spectroscopy Values of 1 indicate less than detection limit; b.d. indicates below the detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 283 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ba ppm Attribute_Definition: Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 1900 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Bi ppm Attribute_Definition: Concentration of bismuth in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 10 ppm. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 12 Range_Domain_Maximum: 45 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 5 ppm. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 341 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 38 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 87 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 84 Range_Domain_Maximum: 86,750 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 168 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below the detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 181 Range_Domain_Maximum: 1350 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicate below detection limit of 4 ppm. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 8 Range_Domain_Maximum: 36 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nd ppm Attribute_Definition: Concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 9 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 9 Range_Domain_Maximum: 120 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 137 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 72 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 36 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sn ppm Attribute_Definition: Concentration of tin in parts per million determined by hydride generation atomic absorption spectroscopy; b.d. indicates below detection limit of 5 ppm. Attribute_Type: Double Attribute_Width: 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 118 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 27 Range_Domain_Maximum: 2000 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ta ppm Attribute_Definition: Concentration of tantalum in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit below 25 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 25 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Th ppm Attribute_Definition: Concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 140 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 20 Range_Domain_Maximum: 217 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y ppm Attribute_Definition: Concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 51 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 71 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Hg ppm Attribute_Definition: Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry; b.d. indicates below detection limit of 0.01 ppm. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 14.60 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: Volcanic_bedrock.xls Entity_Type_Definition: Multi-element chemical analyses for volcanic bedrock samples from Isle Royale. The file includes field numbers for each sample, latitude, longitude, and field rock descriptions. Quantitative results for 49 elements by a number of techniques, including wave-length dispersive X-ray diffraction, instrumental neutron activation by long count, inductively coupled plasma-atomic emission spectroscopy, columetric titration, and cold-vapor atomic absorption spectrometry. Attribute: Attribute_Label: Field_No. Attribute_Definition: Unique identification number for sample Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.93 Range_Domain_Maximum: 48.22 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sample site Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.35 Range_Domain_Maximum: -89.20 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Rock_Description Attribute_Definition: Field description of bedrock sample with named volcanic flow, if known. Attribute: Attribute_Label: SiO2 % Attribute_Definition: Concentration of SiO2 in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 43.00 Range_Domain_Maximum: 73.40 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Al2O3 % Attribute_Definition: Concentration of Al2O3 in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Double Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 11.30 Range_Domain_Maximum: 17.70 Attribute_Units_of_Measure: weights percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe2O3 % Attribute_Definition: Concentration of Fe2O3 in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.20 Range_Domain_Maximum: 16.60 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: MnO % Attribute_Definition: Concentration of MnO in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.26 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: MgO % Attribute_Definition: Concentration of MgO in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.76 Range_Domain_Maximum: 9.08 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: CaO % Attribute_Definition: Concentration of CaO in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.27 Range_Domain_Maximum: 11.20 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: NaO % Attribute_Definition: Concentration of Na2O in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.77 Range_Domain_Maximum: 5.10 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K2O % Attribute_Definition: Concentration of K2O in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.07 Range_Domain_Maximum: 6.39 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P2O5 % Attribute_Definition: Concentration of P2O5 in weight percent determined by wave-length dispersive X-ray diffraction; b.d. indicates below the detection limit of 0.006 weight percent. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.11 Range_Domain_Maximum: 0.36 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: TiO2 % Attribute_Definition: Concentration of TiO2 in weight percent determined by wave-length dispersive X-ray diffraction. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.36 Range_Domain_Maximum: 2.96 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: LOI % Attribute_Definition: Lost on Ignition percent determined during analysis by wave-length dispersive X-ray diffraction. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.61 Range_Domain_Maximum: 4.89 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: Concentration of iron in weight percent determined by instrumental neutron activation by long count. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.33 Range_Domain_Maximum: 12.6 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: Concentration of potassium in weight percent determined by instrumental neutron activation by long count; b.d. indicates values below the detection limit of 100 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.32 Range_Domain_Maximum: 5.18 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: Concentration of sodium in weight percent determined by instrumental neutron activation by long count. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.40 Range_Domain_Maximum: 4.04 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: As ppm Attribute_Definition: Concentration of arsenic in parts per million determined by instrumental neutron activation by long count; b.d. indicates below the detection limit of 0.1 ppm. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 3.1 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ba ppm Attribute_Definition: Concentration of barium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47 Range_Domain_Maximum: 3380 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: Concentration of cerium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13 Range_Domain_Maximum: 140 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: Concentration of cobalt in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 63 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: Concentration of chromium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13 Range_Domain_Maximum: 294 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cs ppm Attribute_Definition: Concentration of cesium in parts per million determined by instrumental neutron activation by long count; b.d indicates below detection limit of 0.05 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.09 Range_Domain_Maximum: 2.31 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Eu ppm Attribute_Definition: Concentration of europium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.82 Range_Domain_Maximum: 2.74 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hf ppm Attribute_Definition: Concentration of hafnium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.34 Range_Domain_Maximum: 14.00 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ho ppm Attribute_Definition: Concentration of holmium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.65 Range_Domain_Maximum: 3.10 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: La ppm Attribute_Definition: Concentration of lanthanum in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Double Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 67 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Lu ppm Attribute_Definition: concentration of lutetium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.23 Range_Domain_Maximum: 1.18 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Nd ppm Attribute_Definition: Concentration of neodymium in parts per million determined by instrumental neutron activation by long count. Attribute_Type: Double Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8 Range_Domain_Maximum: 63 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: Concentration of nickel in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 10 ppm. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 34 Range_Domain_Maximum: 280 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Rb ppm Attribute_Definition: Concentration of rubidium in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 122 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sb ppm Attribute_Definition: Concentration of antimony in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm. Attribute_Type: Integer Attribute_Width: 3 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 13.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: Concentration of scandium in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm. Attribute_Type: Integer Attribute_Width: 4 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.0 Range_Domain_Maximum: 40.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Sm ppm Attribute_Definition: Concentration of samarium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.3 Range_Domain_Maximum: 13.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: Concentration of strontium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 83 Range_Domain_Maximum: 822 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ta ppm Attribute_Definition: Concentration of tantalum in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 3.1 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Tb ppm Attribute_Definition: Concentration of terbium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.4 Range_Domain_Maximum: 2.2 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Th ppm Attribute_Definition: Concentration of thorium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 22.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: U ppm Attribute_Definition: Concentration of uranium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 5.2 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Yb ppm Attribute_Definition: Concentration of ytterbium in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.6 Range_Domain_Maximum: 8.4 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: Concentration of zinc in parts per million determined by instrumental neutron activation by long count; b.d. indicates below detection limit of 1 ppm. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 38 Range_Domain_Maximum: 150 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zr ppm Attribute_Definition: Concentration of zircon in parts per million determined by instrumental neutron activation by long count. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 55 Range_Domain_Maximum: 526 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: Concentration of copper in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17 Range_Domain_Maximum: 2330 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ga ppm Attribute_Definition: Concentration of gallium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 32 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: Concentration of lithium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 55 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: Concentration of lead in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15 Range_Domain_Maximum: 47 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sn ppm Attribute_Definition: Concentration of tin in parts per million determined by inductively coupled plasma-atomic emission spectroscopy; b.d. indicates below detection limit of 5 ppm. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7 Range_Domain_Maximum: 42 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: Concentration of vanadium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 19 Range_Domain_Maximum: 404 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y ppm Attribute_Definition: Concentration of yttrium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15 Range_Domain_Maximum: 75 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S % Attribute_Definition: Concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below the detection limit of 0.05%. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.02 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: CO2 % Attribute_Definition: Concentration of carbonate in weight percent determined by columetric titration. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.30 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: Concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry; b. d. indicates below the detection limit of 0.02 ppm. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.10 Range_Domain_Maximum: 0.10 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: Sedimentary_bedrock.xls Entity_Type_Definition: Multi-element chemical analyses for sedimentary rock samples collected on Isle Royale. Includes sample field number, latitude, longitude, and a description of the rock sample. Quantitative results for 27 elements are included. Additional elements were analyzed but not reported as they were consistently below below detection limits for 90% to 100% of samples tested. Those elements not included and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ga (4), Ho (4), Mo (4), Sn (50), Ta (40), and U (100). Ga is not included because of poor relative percent difference between duplicates. Attribute: Attribute_Label: Field No. Attribute_Definition: unique sample identification number Attribute: Attribute_Label: Latitude Attribute_Definition: latitude of sample site Attribute_Type: Double Attribute_Width: 9 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 48.08 Range_Domain_Maximum: 48.11 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Longitude Attribute_Definition: longitude of sample site Attribute_Type: Double Attribute_Width: 10 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.58 Range_Domain_Maximum: -88.62 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Rock Description Attribute_Definition: description of the rock sample Attribute_Type: String Attribute_Width: 7 Attribute: Attribute_Label: Al % Attribute_Definition: concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.24 Range_Domain_Maximum: 5.04 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca % Attribute_Definition: concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.12 Range_Domain_Maximum: 0.21 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.08 Range_Domain_Maximum: 4.29 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.46 Range_Domain_Maximum: 3.16 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.25 Range_Domain_Maximum: 0.32 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.06 Range_Domain_Maximum: 1.7 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.04 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.31 Range_Domain_Maximum: 0.32 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ba ppm Attribute_Definition: concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 824 Range_Domain_Maximum: 1030 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 5 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 79 Range_Domain_Maximum: 99 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 16 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 53 Range_Domain_Maximum: 76 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 24 Range_Domain_Maximum: 34 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 13 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 272 Range_Domain_Maximum: 303 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 11 Range_Domain_Maximum: 30 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nd ppm Attribute_Definition: concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17 Range_Domain_Maximum: 38 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 22 Range_Domain_Maximum: 28 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 80 Range_Domain_Maximum: 111 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Th ppm Attribute_Definition: concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 18 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 43 Range_Domain_Maximum: 55 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y ppm Attribute_Definition: concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35 Range_Domain_Maximum: 49 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Yb ppm Attribute_Definition: concentration of ytterbium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 5 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 74 Range_Domain_Maximum: 103 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in parts per million determined by atomic absorption spectrophotometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.7 Range_Domain_Maximum: 4.4 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates below detection limit of 0.2 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 0.2 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.09 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: O_horizon.xls Entity_Type_Definition: Multi-element analyses of organic materials collected from the forest floor and analyzed at the University of Wisconsin Plant and Soil Laboratory, Madison, Wisconsin. Samples were also analyzed at the USGS laboratories in Denver, CO for mercury. File includes sample site, latitude, longitude, year collected, descriptions of the forest floor material, (including dominate tree type and general character of the organic material), horiz on, which distinguishes between Oi (forest litter) and Oe (forest duff or humic material), as well as quantitative analyses for 24 elements and determination of % ash from both the University of Wisconsin and the USGS. Attribute: Attribute_Label: Sample Site Attribute_Definition: unique identification number for sample Attribute_Type: Integer Attribute_Width: 8 Attribute: Attribute_Label: Latitude Attribute_Definition: latitude of sample site Attribute_Type: Double Attribute_Width: 10 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.85 Range_Domain_Maximum: 48.19 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Definition: longitude of sample site Attribute_Type: Double Attribute_Width: 9 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.43 Range_Domain_Maximum: -89.22 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Year Attribute_Definition: Year collected Attribute: Attribute_Label: Forest Floor Material Comment Attribute_Definition: dominant tree type in sample area and general character of organic material at the forest surface Attribute: Attribute_Label: Horizon Attribute_Definition: horizon classification of sample Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Oi Enumerated_Domain_Value_Definition: forest litter Enumerated_Domain: Enumerated_Domain_Value: Oe Enumerated_Domain_Value_Definition: forest duff or humic material Attribute: Attribute_Label: Al ppm Attribute_Definition: concentration of aluminum in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 379 Range_Domain_Maximum: 22345 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: B ppm Attribute_Definition: concentration of boron in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 2.5 Range_Domain_Maximum: 49.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ca ppm Attribute_Definition: concentration of calcium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 3174 Range_Domain_Maximum: 30238 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 3.2 Range_Domain_Maximum: 75.4 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Fe ppm Attribute_Definition: concentration of iron in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 469 Range_Domain_Maximum: 41631 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.62 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K ppm Attribute_Definition: concentration of potassium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 550 Range_Domain_Maximum: 4725 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mg ppm Attribute_Definition: concentration of magnesium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 658 Range_Domain_Maximum: 9379 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 154 Range_Domain_Maximum: 8745 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mo ppm Attribute_Definition: concentration of molybdenum in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 1.3 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Na ppm Attribute_Definition: concentration of sodium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 12.2 Range_Domain_Maximum: 405.6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: P ppm Attribute_Definition: concentration of phosphorus in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 294 Range_Domain_Maximum: 1541 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S ppm Attribute_Definition: concentration of sulfur in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 443 Range_Domain_Maximum: 2413 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 29 Range_Domain_Maximum: 608 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.22 Range_Domain_Maximum: 6.13 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cd ppm Attribute_Definition: concentration of cadmium in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.11 Range_Domain_Maximum: 3.81 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.82 Range_Domain_Maximum: 25.32 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.92 Range_Domain_Maximum: 37.23 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.41 Range_Domain_Maximum: 249.63 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.58 Range_Domain_Maximum: 81.35 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.64 Range_Domain_Maximum: 16.82 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti ppm Attribute_Definition: concentration of titanium in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 34.63 Range_Domain_Maximum: 1640.00 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in parts per million determined by inductively coupled plasma mass spectrometry Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.58 Range_Domain_Maximum: 111.19 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrometry at the USGS laboratories in Denver, CO; n.a. indicates not analyzed Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 0.53 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: % Ash Attribute_Definition: percent ash determined by the University of Wisconsin Plant and Soil Analyses Laboratory, Madison, WI; n.a. indicates not analyzed (equivalent to not ashed) Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed (equivalent to not ashed) Range_Domain: Range_Domain_Minimum: 5.4 Range_Domain_Maximum: 80.2 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: % Ash Attribute_Definition: percent ash determined by the USGS laboratories in Denver, CO; n.a. indicates not analyzed (equivalent to not ashed) Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 22.4 Range_Domain_Maximum: 94.4 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: Lichens.xls Entity_Type_Definition: Multi-element chemical analyses of four lichen species: Evernia mesomorpha, Hypogymnia plysodes, Parmelia sucata, and Cladina rangiferina. Lichens were analyzed at the University of Wisconsin Soil and Plant Analysis Laboratory, Madison, WI. File is organized by element and subdivided by lichen species. Attribute: Attribute_Label: Sample Site Attribute_Definition: unique location for lichen collecting site Attribute_Type: String Attribute_Width: 9 Attribute: Attribute_Label: Latitude Attribute_Definition: latitude of sample site Attribute_Type: Double Attribute_Width: 10 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 47.84 Range_Domain_Maximum: 48.19 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Longitude Attribute_Definition: longitude of sample site Attribute_Type: Double Attribute_Width: 9 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -88.42 Range_Domain_Maximum: -89.22 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00001 Attribute: Attribute_Label: Year Attribute_Definition: year sample was collected Attribute: Attribute_Label: Epiphytic lichen comments Attribute_Definition: description of trees where epiphytic lichens were collected Attribute: Attribute_Label: Al ppm Attribute_Definition: concentration of aluminum in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 143 Range_Domain_Maximum: 672 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Al ppm Attribute_Definition: concentration of aluminum in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates lichen not analyzed Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 176 Range_Domain_Maximum: 582 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Al ppm Attribute_Definition: concentration of aluminum in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 266 Range_Domain_Maximum: 1328 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Al ppm Attribute_Definition: concentration of aluminum in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 115 Range_Domain_Maximum: 1031 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: B ppm Attribute_Definition: concentration of boron in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.8 Range_Domain_Maximum: 24.2 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: B ppm Attribute_Definition: concentration of boron in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 2.9 Range_Domain_Maximum: 25.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: B ppm Attribute_Definition: concentration of boron in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 3.7 Range_Domain_Maximum: 27.0 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: B ppm Attribute_Definition: concentration of boron in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 2.4 Range_Domain_Maximum: 20.1 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ca ppm Attribute_Definition: concentration of calcium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 396 Range_Domain_Maximum: 11574 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ca ppm Attribute_Definition: concentration of calcium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 12740 Range_Domain_Maximum: 63927 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ca Attribute_Definition: concentration of calcium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 9 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 3123 Range_Domain_Maximum: 9190 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ca ppm Attribute_Definition: concentration of calcium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 345 Range_Domain_Maximum: 1649 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.12 Range_Domain_Maximum: 7.32 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 2.52 Range_Domain_Maximum: 11.89 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 3.53 Range_Domain_Maximum: 19.73 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.92 Range_Domain_Maximum: 3.26 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe ppm Attribute_Definition: concentration of iron in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 182 Range_Domain_Maximum: 1203 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Fe ppm Attribute_Definition: concentration of iron in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 233 Range_Domain_Maximum: 959 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Fe ppm Attribute_Definition: concentration of iron in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 358 Range_Domain_Maximum: 1611 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Fe ppm Attribute_Definition: concentration of iron in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 105 Range_Domain_Maximum: 1390 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: K ppm Attribute_Definition: concentration of potassium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1357 Range_Domain_Maximum: 3856 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: K ppm Attribute_Definition: concentration of potassium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Double Attribute_Width: 9 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 2004 Range_Domain_Maximum: 4831 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: K ppm Attribute_Definition: concentration of potassium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 9 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 1996 Range_Domain_Maximum: 5574 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: K ppm Attribute_Definition: concentration of potassium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 926 Range_Domain_Maximum: 2911 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mg ppm Attribute_Definition: concentration of magnesium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 226 Range_Domain_Maximum: 544 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mg ppm Attribute_Definition: concentration of magnesium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 499 Range_Domain_Maximum: 1405 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mg ppm Attribute_Definition: concentration of magnesium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 358 Range_Domain_Maximum: 859 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mg ppm Attribute_Definition: concentration of magnesium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 227 Range_Domain_Maximum: 583 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 13 Range_Domain_Maximum: 111 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 39 Range_Domain_Maximum: 363 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 37 Range_Domain_Maximum: 273 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 13 Range_Domain_Maximum: 297 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Na ppm Attribute_Definition: concentration of sodium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7 Range_Domain_Maximum: 141 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Na ppm Attribute_Definition: concentration of sodium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 11 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Na ppm Attribute_Definition: concentration of sodium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 9 Range_Domain_Maximum: 110 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Na ppm Attribute_Definition: concentration of sodium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Type: Integer Attribute_Width: 9 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 137 Attribute_Units_of_Measure: part per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: P ppm Attribute_Definition: concentration of phosphorous in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 400 Range_Domain_Maximum: 1764 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: P ppm Attribute_Definition: concentration of phosphorous in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 518 Range_Domain_Maximum: 1795 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: P ppm Attribute_Definition: concentration of phosphorous in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 822 Range_Domain_Maximum: 2757 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: P ppm Attribute_Definition: concentration of phosphorous in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 366 Range_Domain_Maximum: 1256 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S ppm Attribute_Definition: concentration of sulfur in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 622 Range_Domain_Maximum: 2135 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S ppm Attribute_Definition: concentration of sulfur in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 701 Range_Domain_Maximum: 1983 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S ppm Attribute_Definition: concentration of sulfur in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 933 Range_Domain_Maximum: 1983 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: S ppm Attribute_Definition: concentration of sulfur in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 345 Range_Domain_Maximum: 670 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17 Range_Domain_Maximum: 55 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 44 Range_Domain_Maximum: 122 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 47 Range_Domain_Maximum: 146 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 11 Range_Domain_Maximum: 30 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.25 Range_Domain_Maximum: 1.65 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.29 Range_Domain_Maximum: 1.65 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.41 Range_Domain_Maximum: 1.75 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in ppm in lichen species Cladina Rangiferina determined b Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.04 Range_Domain_Maximum: 0.55 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cd ppm Attribute_Definition: concentration of cadmium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.07 Range_Domain_Maximum: 0.38 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cd ppm Attribute_Definition: concentration of cadmium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.53 Range_Domain_Maximum: 1.97 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cd ppm Attribute_Definition: concentration of cadmium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.16 Range_Domain_Maximum: 0.88 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cd ppm Attribute_Definition: concentration of cadmium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.23 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.10 Range_Domain_Maximum: 0.34 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.33 Range_Domain_Maximum: 1.25 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.19 Range_Domain_Maximum: 0.72 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.48 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.49 Range_Domain_Maximum: 1.79 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.45 Range_Domain_Maximum: 1.83 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.45 Range_Domain_Maximum: 2.13 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.24 Range_Domain_Maximum: 2.51 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mo ppm Attribute_Definition: concentration of molybdenum in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.42 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mo ppm Attribute_Definition: concentration of molybdenum in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.09 Range_Domain_Maximum: 0.33 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mo ppm Attribute_Definition: concentration of molybdenum in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.10 Range_Domain_Maximum: 0.52 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mo ppm Attribute_Definition: concentration of molybdenum in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.13 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 3.6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 3.1 Range_Domain_Maximum: 20.9 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 1.4 Range_Domain_Maximum: 8.6 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 1.8 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.2 Range_Domain_Maximum: 10.8 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 4.5 Range_Domain_Maximum: 20.1 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 5.3 Range_Domain_Maximum: 30.4 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 4.3 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.04 Range_Domain_Maximum: 1.97 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.20 Range_Domain_Maximum: 2.28 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.18 Range_Domain_Maximum: 2.89 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.14 Range_Domain_Maximum: 0.73 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti ppm Attribute_Definition: concentration of titanium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 32 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ti ppm Attribute_Definition: concentration of titanium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 35 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ti ppm Attribute_Definition: concentration of titanium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 39 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ti ppm Attribute_Definition: concentration of titanium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 105 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.4 Range_Domain_Maximum: 2.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 2.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 1.2 Range_Domain_Maximum: 4.3 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 4.1 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.r. Enumerated_Domain_Value_Definition: not reported Range_Domain: Range_Domain_Minimum: 0.15 Range_Domain_Maximum: 0.67 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.r. Enumerated_Domain_Value_Definition: not reported Range_Domain: Range_Domain_Minimum: 0.13 Range_Domain_Maximum: 0.36 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.r. Enumerated_Domain_Value_Definition: not reported Range_Domain: Range_Domain_Minimum: 0.11 Range_Domain_Maximum: 0.31 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected; n.r. indicates not reported Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 0.03 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ash % Attribute_Definition: Percent ash in lichen species Evernia mesomorpha; n.a. indicates sample not analyzed (essentially, not ashed) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed (not ashed) Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 80.2 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ash % Attribute_Definition: Percent ash in lichen species Hypogymnia plysodes; n.a. indicates sample not analyzed (essentially, not ashed) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed (not ashed) Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 12.6 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Ash % Attribute_Definition: Percent ash in lichen species Parmelia sucata; n.a. indicates sample not analyzed (essentially, not ashed) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed (not ashed) Range_Domain: Range_Domain_Minimum: 1.1 Range_Domain_Maximum: 7.9 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Ash % Attribute_Definition: Percent ash in lichen species Cladina Rangiferina; n.a. indicates sample not analyzed (essentially, not ashed); n.c. indicates not collected Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Enumerated_Domain: Enumerated_Domain_Value: n.c. Enumerated_Domain_Value_Definition: not collected Range_Domain: Range_Domain_Minimum: 0.4 Range_Domain_Maximum: 43.1 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 0.1 Detailed_Description: Entity_Type: Entity_Type_Label: Sargent_Lake_core.xls Entity_Type_Definition: Multi-element chemical compositions lake sediment core collected from a series of 1-meter cores from a single borehole in Sargent Lake, Isle Royale. Includes field number; sample descriptions, estimated depth (in centimeters) from the top of the water-sediment interface (sample depths increase with depth down hole), and quantitative results for 31 elements. Additional elements were analyzed but are not reported as they were consistently below detection limit for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Sn (5), Ta (40), U (100) and Yb (1). Ga is not included as the relative percent difference between duplicates were consistently >25%. Attribute: Attribute_Label: Field Number Attribute_Definition: unique sample identification for each split of core material Attribute_Type: Integer Attribute_Width: 8 Attribute: Attribute_Label: Sample Description Attribute_Definition: Core number (number from top of hole to bottom, source of sampled core material, and description of core material Attribute_Type: String Attribute_Width: 13 Attribute: Attribute_Label: Estimated depth Attribute_Definition: Estimated depth of core material measured from the top of the sediment-water interface. Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.5 Range_Domain_Maximum: 418.5 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Al % Attribute_Definition: concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.30 Range_Domain_Maximum: 9.30 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca % Attribute_Definition: concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.51 Range_Domain_Maximum: 2.69 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.59 Range_Domain_Maximum: 6.21 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 9 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.52 Range_Domain_Maximum: 2.76 Attribute_Units_of_Measure: wieght percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.25 Range_Domain_Maximum: 2.70 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.80 Range_Domain_Maximum: 1.36 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: concentration of phosphorous in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 0.12 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.32 Range_Domain_Maximum: 0.65 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ba ppm Attribute_Definition: concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 184 Range_Domain_Maximum: 628 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 30 Range_Domain_Maximum: 130 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 18 Range_Domain_Maximum: 27 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 32 Range_Domain_Maximum: 159 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 55 Range_Domain_Maximum: 256 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 20 Range_Domain_Maximum: 56 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9 Range_Domain_Maximum: 79 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 6 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 481 Range_Domain_Maximum: 830 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 25 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nd ppm Attribute_Definition: concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15 Range_Domain_Maximum: 53 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 57 Range_Domain_Maximum: 78 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 42 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 18 Range_Domain_Maximum: 22 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 105 Range_Domain_Maximum: 187 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Th ppm Attribute_Definition: concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm Attribute_Type: Double Attribute_Width: 7 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 24 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 130 Range_Domain_Maximum: 177 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y ppm Attribute_Definition: concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 20 Range_Domain_Maximum: 29 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Type: Integer Attribute_Width: 7 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 82 Range_Domain_Maximum: 121 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in parts per million determined by atomic absorption spectrophotometry; n.a. indicates not analyzed Attribute_Type: Integer Attribute_Width: 8 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 1.9 Range_Domain_Maximum: 9.3 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in parts per million determined by atomic absorption spectrophotometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 4.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Carbonate C % Attribute_Definition: concentration of carbonate carbon in weight percent determined by columetric titration; b.d. indicates below detection limit of 0.01% Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.04 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Total C % Attribute_Definition: concentration of total carbon in weight percent determined by automated carbon analyzer; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.61 Range_Domain_Maximum: 17.80 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: S % Attribute_Definition: concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below detection limit of 0.05%; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 0.54 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.14 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: Lake_Richie.xls Entity_Type_Definition: Multi-element chemical compositions lake sediment core collected from a series of 1-meter cores from a single borehole in Sargent Lake, Isle Royale. Includes field number; sample descriptions, estimated depth (in centimeters) from the top of the water-sediment interface (sample depths increase with depth down hole), and quantitative results for 31 elements. Additional elements were analyzed but are not reported as they were consistently below detection limit for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Sn (5), Ta (40), U (100) and Yb (1). Ga is not included as the relative percent difference between duplicates were consistently >25%. Attribute: Attribute_Label: Field No. Attribute_Definition: unique sample identification for each split of core material Attribute: Attribute_Label: Sample Description Attribute_Definition: Core number (number from top of hole to bottom, source of sampled core material, description of core material Attribute: Attribute_Label: Estimated depth Attribute_Definition: Estimated depth of core material measured from the top of the sediment-water interface. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.5 Range_Domain_Maximum: 553.0 Attribute_Units_of_Measure: centimeters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Al % Attribute_Definition: concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5.11 Range_Domain_Maximum: 8.98 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ca % Attribute_Definition: concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.53 Range_Domain_Maximum: 4.69 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Fe % Attribute_Definition: concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.80 Range_Domain_Maximum: 5.99 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: K % Attribute_Definition: concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.03 Range_Domain_Maximum: 2.63 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Mg % Attribute_Definition: concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.32 Range_Domain_Maximum: 2.75 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Na % Attribute_Definition: concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.85 Range_Domain_Maximum: 1.90 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: P % Attribute_Definition: concentration of phosphorous in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.07 Range_Domain_Maximum: 011 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ti % Attribute_Definition: concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.36 Range_Domain_Maximum: 0.63 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Ba ppm Attribute_Definition: concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 297 Range_Domain_Maximum: 579 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ce ppm Attribute_Definition: concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 51 Range_Domain_Maximum: 143 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Co ppm Attribute_Definition: concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 25 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cr ppm Attribute_Definition: concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 43 Range_Domain_Maximum: 167 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Cu ppm Attribute_Definition: concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 37 Range_Domain_Maximum: 152 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: La ppm Attribute_Definition: concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 25 Range_Domain_Maximum: 61 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Li ppm Attribute_Definition: concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 18 Range_Domain_Maximum: 72 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Mn ppm Attribute_Definition: concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 467 Range_Domain_Maximum: 1060 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nb ppm Attribute_Definition: concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 25 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Nd ppm Attribute_Definition: concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 21 Range_Domain_Maximum: 60 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Ni ppm Attribute_Definition: concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35 Range_Domain_Maximum: 70 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Pb ppm Attribute_Definition: concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 15 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sc ppm Attribute_Definition: concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 22 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Sr ppm Attribute_Definition: concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 122 Range_Domain_Maximum: 223 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Th ppm Attribute_Definition: concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 7 Range_Domain_Maximum: 25 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: V ppm Attribute_Definition: concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 117 Range_Domain_Maximum: 176 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y ppm Attribute_Definition: concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 20 Range_Domain_Maximum: 32 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Zn ppm Attribute_Definition: concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 45 Range_Domain_Maximum: 124 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: As ppm Attribute_Definition: concentration of arsenic in parts per million determined by atomic absorption spectrophotometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.9 Range_Domain_Maximum: 13.7 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Se ppm Attribute_Definition: concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates below detection limit of 0.6 ppm Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 1.9 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: Carbonate_C % Attribute_Definition: concentration of carbonate carbon in weight percent determined by columetric titration; b.d. indicates below detection limit of 0.01% Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 1.09 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Total_C % Attribute_Definition: concentration of total carbon in weight percent determined by automated carbon analyzer; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.24 Range_Domain_Maximum: 11.2 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: S % Attribute_Definition: concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below detection limit of 0.05%; n.a. indicates not analyzed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b.d. Enumerated_Domain_Value_Definition: below detection Enumerated_Domain: Enumerated_Domain_Value: n.a. Enumerated_Domain_Value_Definition: not analyzed Range_Domain: Range_Domain_Minimum: 0.05 Range_Domain_Maximum: 0.24 Attribute_Units_of_Measure: weight percent Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Hg ppm Attribute_Definition: concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 0.16 Attribute_Units_of_Measure: parts per million Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Resource_Description: Distribution_Liability: Standard_Order_Process: Technical_Prerequisites: Metadata_Reference_Information: Metadata_Date: 20030626 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Laurel G. Woodruff Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey 2280 Woodale Drive City: Mounds View State_or_Province: MN Postal_Code: 55112 Country: USA Contact_Voice_Telephone: 763.783.3291 Contact_Facsimile_Telephone: 763.783.3103 Contact_Electronic_Mail_Address: woodruff@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none Metadata_Security_Information: Metadata_Security_Classification: none