Metadata: Identification_Information: Citation: Citation_Information: Originator: John F. Slack Originator: Karen D. Kelley Originator: Jeffrey L. Clark Publication_Date: 2004 Title: Whole rock geochemical data for altered and mineralized rocks, Red Dog Zn-Pb-Ag district, western Brooks Range, Alaska Geospatial_Data_Presentation_Form: table Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2004-1372 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2004/1372/ Description: Abstract: This report presents geochemical analyses for 220 mostly altered and mineralized rock samples from the Red Dog Zn-Pb-Ag district in the western Brooks Range of northern Alaska. These data form the basis for a study by Slack et al. (2004a) on hydrothermal silicification and related alteration in wall rocks of the Red Dog deposits and the Anarraaq deposit 10 km to the northwest. The sulfide deposits occur within the Ikalukrok unit (informal name) of the Mississippian Kuna Formation (Moore and others, 1986). Principal rock types that were analyzed include black and gray shale, unmineralized bedded barite, mineralized (sulfide-rich) bedded barite, sulfide-rich silica rock (replaced barite), massive and semimassive sulfide, vein chalcedony, and Brookian (Cretaceous) vein quartz. For stratigraphic completeness, data are also reported here for a limited number of unaltered and unmineralized samples of black and gray shale, laminated carbonate-rich shale, lithic turbidite, bedded siliceous rock, calcareous radiolarite, and tectonic mélange. Detailed descriptions of the sampled sulfide deposits and their stratigraphic settings are given in Slack and others (2004a) and Kelley and others (2004a, b). The geochemical analyses are presented here in Microsoft Excel and .dbf spreadsheet formats in order to facilitate calculations and plotting of data. A related geochemical database on unaltered Paleozoic sedimentary rocks of the western Brooks Range is available in Slack and others (2004b). Purpose: These data form the basis for a study by Slack et al. (2004a) on hydrothermal silicification and related alteration in wall rocks of the Red Dog deposits and the Anarraaq deposit 10 km to the northwest. Supplemental_Information: Data for elements, oxides, and other components are presented either in weight percent or parts per million, except for Au that are in parts per billion. Qualified values (shown by the '<' symbol) represent values less than the specified minimum detection limit (MDL). In some cases, the MDL for a particular element or component is not uniform, which reflects changing analytical conditions or matrix effects, or use of newer ICP-MS instruments that have higher precision and lower MDLs. For statistical treatment of data and other calculations, it is recommended that qualified values be substituted by one-half the analytical detection limit (Sanford and others, 1993). Note that the abbreviation "n.a." refers to a lack of analysis for the specified element or component. Values for the magnitude of the Ce and Eu anomalies are also presented. The magnitude of the Ce anomaly, Ce/Ce*, is calculated as: Ce[CN]/((La[CN])**0.667 * (Nd[CN])**0.333) where Ce[CN], La[CN], and Nd[CN] represent normalization of Ce, La, and Nd respectively to average chondrites using the data of Nakamura (1974). The magnitude of the Eu anomaly, Eu/Eu*, is calculated as: Eu[CN]/(Sm[CN]*Gd[CN])**0.5 with chondrite normalization of Eu, Sm, and Gd represented respectively as Eu[CN], Sm[CN], and Gd[CN]. In these formulae, two asterisks (**) are used to represent exponentiation; one alone indicates multiplication. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -163.272222 East_Bounding_Coordinate: -162.500000 North_Bounding_Coordinate: 68.170621 South_Bounding_Coordinate: 68.065714 Keywords: Theme: Theme_Keyword_Thesaurus: Gateway to the Earth version 1.0 Theme_Keyword: geochemistry Theme_Keyword: rocks and deposits Theme_Keyword: mass spectroscopy Theme_Keyword: neutron activation analysis Theme_Keyword: atomic absorption analysis Theme_Keyword: chemical analysis Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0 Place_Keyword: 02188 = Northwest Arctic Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: Kuna Formation Stratum_Keyword: Lower Siksikpuk Formation Stratum_Keyword: Noatak Sandstone Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: John F Slack Contact_Organization: USGS ER GD Contact_Address: Address_Type: mailing address Address: Mail Stop 954 USGS National Center 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6337 Contact_Facsimile_Telephone: 703-648-6383 Contact_Electronic_Mail_Address: jfslack@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2004/1372/reddog.png Browse_Graphic_File_Description: Index map showing general location of the study area, 790x570 pixels, 53k bytes Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Microsoft Excel Cross_Reference: Citation_Information: Originator: John F. Slack Originator: J.M. Schmidt Originator: J.A. Dumoulin Publication_Date: 2004 Title: Whole rock geochemical data for Paleozoic sedimentary rocks of the western Brooks Range, Alaska Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2004-1371 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2004/1371/ Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Precision and accuracy for concentrations 100x the minimum detection limit (MDL) was generally better than ±5 % relative, and in many cases such as for major elements was better than ±1 % relative. For concentrations approximately 10x the MDL, precision and accuracy were about ±10-20 % relative depending on the method used. Logical_Consistency_Report: Multiple standards were analyzed together with the submitted rock samples. Analyses by ACT Labs included data on 8 to 10 compositionally different standards with well-defined elemental concentrations. In addition to these standards, analyses were routinely obtained on duplicate samples and Ohio black shale SDO-1 (http://minerals.cr.usgs.gov/geochem/ohioshale.html). Completeness_Report: Data are available for most elements in most samples. The code "n.a." is used to indicate an unavailable analysis; it occurs in only nine fields: >Database >Field Chemical >Label # missing Species >-------------------------------- > F 42 (F) > S 5 (S) > SO4 4 (sulfate) > EU 12 (Eu) > CE_CE 5 (Ce/Ce*) > EU_EU 12 (Eu/Eu*) > CD 151 (Cd) > AU 43 (Au) > SE 16 (Se) Lineage: Process_Step: Process_Description: Geochemical analyses were obtained mostly on samples of diamond drill core 3.5 or 4.5 cm in diameter. Several analyzed samples come from mine faces within the Red Dog open pit (Main deposit) or from outcrops in the region. Samples were cut using water-cooled diamond saws in order to remove oxidized or weathered surfaces. Particular care was taken to cut out visible veins from altered wall rocks so that each analysis would represent a single rock type. Note, however, that disseminated and laminated sulfides (e.g., pyrite laminae in black shale) were retained in the samples prior to analysis. All samples were pulverized in an alumina ceramic mortar, which in some cases may have produced very minor contamination by trace amounts of Al, Ba, or rare earth elements (REE). Prior to analysis all samples were fused with lithium metaborate/ tetraborate to insure nearly complete acid digestion of resistate minerals such as zircon, monazite, rutile, chromite, and barite. All samples were analyzed by Activation Laboratories (ACT Labs) in Ancaster, Ontario, using methods described on their web site: . Major elements, most trace elements, and REE were determined by inductively-coupled plasma mass spectrometry (ICP-MS), using an approach similar to that of Jenner and others (1990). REE in some barite samples were analyzed by high-resolution, magnetic sector ICP-MS using an ion exchange technique in order to eliminate Ba interference on Eu. Volatiles and related components (total C, CO2, Corg, S, SO4) were determined using conventional methods as described in Jackson and others (1987). Fluorine was analyzed by the ion selective electrode technique (Jackson and others, 1987). Data for Sc, Cr, Co, Au, Sb, As, and Se in most samples were obtained by instrumental neutron activation analysis (Hoffman, 1992), which provides more precise results than by ICP-MS. Au concentrations in most samples of semimassive and massive sulfide were also obtained by flame atomic absorption (Aruscavage and Crock, 1987) by XRAL Laboratories of Denver, CO, using on splits of the same rock powders that were earlier run for major and trace elements, and REE. Multiple standards were analyzed together with the submitted rock samples. Analyses by ACT Labs included data on 8 to 10 compositionally different standards with well-defined elemental concentrations. In addition to these standards, analyses were routinely obtained on duplicate samples and Ohio black shale SDO-1 (http://minerals.cr.usgs.gov/geochem/ohioshale.html). Precision and accuracy for concentrations 100x the minimum detection limit (MDL) was generally better than ±5 % relative, and in many cases such as for major elements was better than ±1 % relative. For concentrations approximately 10x the MDL, precision and accuracy were about ±10-20 % relative depending on the method used. Process_Date: 2004 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 220 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: Longitude_Resolution: Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: reddog.dbf Entity_Type_Definition: Samples for which geochemical analyses have been conducted Attribute: Attribute_Label: SAMPLE_NO Attribute_Definition: Sample number Attribute_Domain_Values: Unrepresentable_Domain: Textual identifier without further scientific significance Attribute: Attribute_Label: SAMPLE_DES Attribute_Definition: Description of the sample Attribute_Domain_Values: Unrepresentable_Domain: Plain descriptive text Attribute: Attribute_Label: SAMPLE_TYP Attribute_Definition: Type of sampled material Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Drill core Enumerated_Domain: Enumerated_Domain_Value: Open pit face Enumerated_Domain: Enumerated_Domain_Value: Outcrop Attribute: Attribute_Label: LOCATION Attribute_Definition: Description of sampled location Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Anarraaq zinc-lead deposit Enumerated_Domain: Enumerated_Domain_Value: Aqqaluk zinc-lead deposit Enumerated_Domain: Enumerated_Domain_Value: Gull Creek barite deposit Enumerated_Domain: Enumerated_Domain_Value: Husky Hills (E of Red Dog) Enumerated_Domain: Enumerated_Domain_Value: Main zinc-lead deposit Enumerated_Domain: Enumerated_Domain_Value: Paalaaq zinc-lead deposit Enumerated_Domain: Enumerated_Domain_Value: Red Dog Creek Enumerated_Domain: Enumerated_Domain_Value: Su barite deposit Enumerated_Domain: Enumerated_Domain_Value: Suds zinc-lead deposit Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude in decimal degrees Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 68.06571386760 Range_Domain_Maximum: 68.17062130410 Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude in decimal degrees Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -163.2722220000 Range_Domain_Maximum: -162.5000000000 Attribute: Attribute_Label: STRATIGRAP Attribute_Definition: Stratigraphic unit sampled Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ikalukrok unit of Kuna Formation Enumerated_Domain: Enumerated_Domain_Value: Kivalina unit of Kuna Formation Enumerated_Domain: Enumerated_Domain_Value: Lower Siksikpuk Formation Enumerated_Domain: Enumerated_Domain_Value: Melange unit of Kuna Formation Enumerated_Domain: Enumerated_Domain_Value: Noatak Sandstone Attribute: Attribute_Label: SIO2 Attribute_Definition: Silica as SiO2 in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.050 Range_Domain_Maximum: 98.840 Attribute: Attribute_Label: TIO2 Attribute_Definition: Titanium Oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 1.404 Attribute: Attribute_Label: AL2O3 Attribute_Definition: Aluminum oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0050 Range_Domain_Maximum: 20.7400 Attribute: Attribute_Label: FE2O3 Attribute_Definition: Iron oxide in percent by weight (total iron reported as Fe2O3) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 55.64 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: MNO Attribute_Definition: Manganese oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 8.705 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: MGO Attribute_Definition: Magnesium oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 12.96 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: CAO Attribute_Definition: Calcium oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 43.78 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: NA2O Attribute_Definition: Sodium oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.94 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: K2O Attribute_Definition: Potassium oxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 3.64 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: P2O5 Attribute_Definition: Phosphate as P2O5 in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 6.11 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: LOI Attribute_Definition: Loss on ignition in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 36.84 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: TOTAL Attribute_Definition: Total of major element analysis, including LOI Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.15 Range_Domain_Maximum: 101 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: F Attribute_Definition: Fluorine (F) in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 0.789 Attribute_Units_of_Measure: percent by weight Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: TOTAL_C Attribute_Definition: Total carbon in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 11.8 Attribute_Units_of_Measure: percent by weight Enumerated_Domain: Enumerated_Domain_Value: <0.01 Attribute: Attribute_Label: CO2 Attribute_Definition: Carbon dioxide in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.4 Range_Domain_Maximum: 37 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: CORG Attribute_Definition: Organic carbon in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 11.47 Attribute_Units_of_Measure: percent by weight Attribute: Attribute_Label: S Attribute_Definition: Sulfur (S) in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 39.3 Attribute_Units_of_Measure: percent by weight Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: SO4 Attribute_Definition: Sulfate (SO4) in percent by weight Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 43.2 Attribute_Units_of_Measure: percent by weight Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: RB Attribute_Definition: Rubidium (Rb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 188 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CS Attribute_Definition: Cesium (Cs) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 43.1 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: SR Attribute_Definition: Strontium (Sr) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4 Range_Domain_Maximum: 3702 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: BA Attribute_Definition: Barium (Ba) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 42 Range_Domain_Maximum: 581200 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Y Attribute_Definition: Yttrium (Y) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.5 Range_Domain_Maximum: 635.7 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: LA Attribute_Definition: Lanthanum (La) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 170 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CE Attribute_Definition: Cerium (Ce) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 180.85 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: PR Attribute_Definition: Praseodymium (Pr) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 33.43 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: ND Attribute_Definition: Neodymium (Nd) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.03 Range_Domain_Maximum: 165.23 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: SM Attribute_Definition: Samarium (Sm) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 58.56 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: EU Attribute_Definition: Europium (Eu) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.003 Range_Domain_Maximum: 146.006 Attribute_Units_of_Measure: ppm (parts per million by weight) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: GD Attribute_Definition: Gadolinium (Gd) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 91.78 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: TB Attribute_Definition: Terbium (Tb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 13.76 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: DY Attribute_Definition: Dysprosium (Dy) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 92.72 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: HO Attribute_Definition: Holmium (Ho) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 18.94 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: ER Attribute_Definition: Erbium (Er) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 55.79 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: TM Attribute_Definition: Thulium (Tm) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 6.045 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: YB Attribute_Definition: Ytterbium (Yb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 38.61 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: LU Attribute_Definition: Lutetium (Lu) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.001 Range_Domain_Maximum: 5.243 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CE_CE Attribute_Definition: Cerium anomaly (dimensionless). The magnitude of the Ce anomaly, Ce/Ce*, is calculated as: Ce[CN]/((La[CN])**0.667 * (Nd[CN])**0.333) where Ce[CN], La[CN], and Nd[CN] represent normalization of Ce, La, and Nd respectively to average chondrites using the data of Nakamura (1974). Here two asterisks (**) are used to represent exponentiation; one alone indicates multiplication. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.43 Range_Domain_Maximum: 1.1526 Attribute_Units_of_Measure: (ratio, no units) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: EU_EU Attribute_Definition: Europium anomaly (dimensionless). The magnitude of the Eu anomaly, Eu/Eu*, is calculated as: Eu[CN]/(Sm[CN]*Gd[CN])**0.5 with chondrite normalization of Eu, Sm, and Gd represented respectively as Eu[CN], Sm[CN], and Gd[CN]. Here two asterisks (**) are used to represent exponentiation; one alone indicates multiplication. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.482 Range_Domain_Maximum: 19.9335 Attribute_Units_of_Measure: (ratio, no units) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: ZR Attribute_Definition: Zirconium (Zr) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 264 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: HF Attribute_Definition: Hafnium (Hf) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 5.3 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: NB Attribute_Definition: Niobium (Nb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 76.6 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: TA Attribute_Definition: Tantalum (Ta) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 5.8 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: TH Attribute_Definition: Thorium (Th) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 14.5 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: U Attribute_Definition: Uranium (U) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 156 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: V Attribute_Definition: Vanadium (V) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 880 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: SC Attribute_Definition: Scandium (Sc) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 36 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CR Attribute_Definition: Chromium (Cr) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9 Range_Domain_Maximum: 1080 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CO Attribute_Definition: Cobalt (Co) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 145 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: NI Attribute_Definition: Nickel (Ni) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 692 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: MO Attribute_Definition: Molybdenum (Mo) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.5 Range_Domain_Maximum: 209 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CU Attribute_Definition: Copper (Cu) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 9 Range_Domain_Maximum: 484 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: ZN Attribute_Definition: Zinc (Zn) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 29 Range_Domain_Maximum: 464500 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: CD Attribute_Definition: Cadmium (Cd) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 1050 Attribute_Units_of_Measure: ppm (parts per million by weight) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: PB Attribute_Definition: Lead (Pb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 163200 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: AG Attribute_Definition: Silver (Ag) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 200 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: AU Attribute_Definition: Gold (Au) in ppb (parts per billion by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 138 Attribute_Units_of_Measure: ppb (parts per billion by weight) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: GA Attribute_Definition: Gallium (Ga) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 36 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: GE Attribute_Definition: Germanium (Ge) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.5 Range_Domain_Maximum: 822.7 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: TL Attribute_Definition: Thallium (Tl) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 313 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: SB Attribute_Definition: Antimony (Sb) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 919 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: AS Attribute_Definition: Arsenic (As) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 672 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: BI Attribute_Definition: Bismuth (Bi) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 4.3 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: SE Attribute_Definition: Selenium (Se) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 135 Attribute_Units_of_Measure: ppm (parts per million by weight) Enumerated_Domain: Enumerated_Domain_Value: n.a. Attribute: Attribute_Label: SN Attribute_Definition: Tin (Sn) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 36 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: W Attribute_Definition: Tungsten (W) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 10.9 Attribute_Units_of_Measure: ppm (parts per million by weight) Attribute: Attribute_Label: BE Attribute_Definition: Beryllium (Be) in ppm (parts per million by weight) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 7 Attribute_Units_of_Measure: ppm (parts per million by weight) Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Information Services Contact_Address: Address_Type: mailing address Address: Box 25286 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Facsimile_Telephone: 303-202-4693 Contact_Electronic_Mail_Address: ask@usgs.gov Resource_Description: USGS Open-File Report 2004-1372 Distribution_Liability: Although all data published in these grids have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Sample point locations and geochemical analyses File_Decompression_Technique: unzip Transfer_Size: 34 kilobytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2004/1372/gisdata.zip Digital_Form: Digital_Transfer_Information: Format_Name: Microsoft Excel Format_Version_Number: 97 Format_Information_Content: Sample point locations and geochemical analyses File_Decompression_Technique: none Transfer_Size: 185 kilobytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2004/1372/reddog.xls Fees: none Metadata_Reference_Information: Metadata_Date: 20041021 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N. Schweitzer Contact_Address: Address_Type: mailing address Address: Mail Stop 954 National Center U.S. Geological Survey 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: (703) 648-6533 Contact_Facsimile_Telephone: (703) 648-6560 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998