This report describes a statewide study conducted to develop main-channel slope (MCS) curves for 138 selected streams in Iowa with drainage areas greater than 100 square miles. MCS values determined from the curves can be used in regression equations for estimating floodfrequency discharges. Multivariable regression equations previously developed for two of the three hydrologic regions defined for Iowa require the measurement of MCS. Main-channel slope is a difficult measurement to obtain for large streams using 1:24,000-scale topographic maps. The curves developed in this report provide a simplified method for determining MCS values for sites located along large streams in Iowa within hydrologic Regions 2 and 3. The curves were developed using MCS values quantified for 2,058 selected sites along 138 selected streams in Iowa. A geographic information system (GIS) technique and 1:24,000-scale topographic data were used to quantify MCS values for the stream sites. The sites were selected at about 5-mile intervals along the streams. River miles were quantified for each stream site using a GIS program. Data points for river-mile and MCS values were plotted and a best-fit curve was developed for each stream. An adjustment was applied to all 138 curves to compensate for differences in MCS values between manual measurements and GIS quantifications. The multivariable equations for Regions 2 and 3 were developed using manual measurements of MCS. A comparison of manual measurements and GIS quantifications of MCS indicates that manual measurements typically produce greater values of MCS compared to GIS quantifications. Median differences between manual measurements and GIS quantifications of MCS are 14.8 and 17.7 percent for Regions 2 and 3, respectively. Comparisons of percentage differences between flood-frequency discharges calculated using MCS values of manual measurements and GIS quantifications indicate that use of GIS values of MCS for Region 3 substantially underestimate flood discharges. Mean and median percentage differences for 2- to 500-year recurrence- interval flood discharges ranged from 5.0 to 5.3 and 4.3 to 4.5 percent, respectively, for Region 2 and ranged from 18.3 to 27.1 and 12.3 to 17.3 percent for Region 3. The MCS curves developed from GIS quantifications were adjusted by 14.8 percent for streams located in Region 2 and by 17.7 percent for streams located in Region 3. Comparisons of percentage differences between flood discharges calculated using MCS values of manual measurements and adjusted-GIS quantifications for Regions 2 and 3 indicate that the flood-discharge estimates are comparable. For Region 2, mean percentage differences for 2- to 500-year recurrence- interval flood discharges ranged between 0.6 and 0.8 percent and median differences were 0.0 percent. For Region 3, mean and median differences ranged between 5.4 to 8.4 and 0.0 to 0.3 percent, respectively. A list of selected stream sites presented with each curve provides information about the sites including river miles, drainage areas, the location of U.S. Geological Survey streamflowgaging stations, and the location of streams crossing hydrologic region boundaries or the Des Moines Lobe landform region boundary. Two examples are presented for determining river-mile and MCS values, and two techniques are presented for computing flood-frequency discharges.
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Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-346","title":"Bog iron formation in the Nassawango Watershed, Maryland","docAbstract":"Bog iron deposits occur at a number of localities in the Pocomoke River basin. The most extensive deposits are situated along Nassawango Creek northwest of Snow Hill, a town on the Pocomoke River. After the discovery of these deposits an iron furnace was built in 1830 on the west side of Nassawango Creek, five miles northwest of Snow Hill, at a location known as the Furnace. The furnace exclusively smelted bog iron obtained along Nassawango Creek for a mile or so north of the furnace site; iron was produced from 1830 to 1850 at a rate of approximately 700 tons per year. Smelting technology of that period used mollusc shells for lime flux and locally burned charcoal for fuel; they were unable to remove phosphorous and the iron was rendered brittle when cold (\"cold short\") because of the high phosphorous content inherited from the ore. For that reason, and because of the limited size of the deposits and the discovery of the much larger and higher quality ore deposits in other parts of the country, production ceased about 1850. The bog iron deposits have been forming throughout the Holocene and are still forming today. Singewald (1911) stated, that their chief interest today lies in the fact that the deposits are now forming and at such a rate as to be observable. \"Deposits which were once exhausted are again workable after an interval of a few years\" (for more on rate of formation of bog ore at different locations see Starkey, 1962 and Moore, 1910). In general, bog ores consist primarily of iron oxyhydroxides, commonly goethite (FeO(OH)). The ores in the Nassawango, in addition to goethite and other ferric oxyhydroxides, contain a significant amount of magnetite.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03346","usgsCitation":"Bricker, O.P., Newell, W., and Simon, N.S., 2003, Bog iron formation in the Nassawango Watershed, Maryland (Version 1.0): U.S. Geological Survey Open-File Report 2003-346, 1 Plate: 59.00 x 36.00 inches, https://doi.org/10.3133/ofr03346.","productDescription":"1 Plate: 59.00 x 36.00 inches","onlineOnly":"Y","costCenters":[],"links":[{"id":5282,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-346/","linkFileType":{"id":5,"text":"html"}},{"id":182029,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Maryland","otherGeospatial":"Nassawango Watershed","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -75.57715149616592,\n 37.99913856928973\n ],\n [\n -75.5918140077756,\n 38.035570165173255\n ],\n [\n -75.31548205821147,\n 38.19352651784118\n ],\n [\n -75.23089064507941,\n 38.38297650399315\n ],\n [\n -75.26698298134907,\n 38.41833284226723\n ],\n [\n -75.39668981481812,\n 38.41126295809377\n ],\n [\n -75.63241788607918,\n 38.164268275187084\n ],\n [\n -75.65723136726461,\n 38.06754394961129\n ],\n [\n -75.67527753539918,\n 38.010692011606864\n ],\n [\n -75.61662748896103,\n 37.99025006723171\n ],\n [\n -75.57715149616592,\n 37.99913856928973\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1be4b07f02db6073e3","contributors":{"authors":[{"text":"Bricker, Owen P.","contributorId":25142,"corporation":false,"usgs":true,"family":"Bricker","given":"Owen","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":246592,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Newell, Wayne L.","contributorId":48538,"corporation":false,"usgs":true,"family":"Newell","given":"Wayne L.","affiliations":[],"preferred":false,"id":246593,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Simon, Nancy S. 0000-0003-2706-7611 nssimon@usgs.gov","orcid":"https://orcid.org/0000-0003-2706-7611","contributorId":838,"corporation":false,"usgs":true,"family":"Simon","given":"Nancy","email":"nssimon@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":246591,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":53095,"text":"ofr03411 - 2003 - Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska","interactions":[],"lastModifiedDate":"2014-04-07T14:45:47","indexId":"ofr03411","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-411","title":"Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska","docAbstract":"A landslide block perched on the northern wall of Tidal Inlet, Glacier Bay National Park (Figure 1), has the potential to generate large waves in Tidal Inlet and the western arm of Glacier Bay if it were to fail catastrophically. Landslide-generated waves are a particular concern for cruise ships transiting through Glacier Bay on a daily basis during the summer months. The objective of this study is to estimate the range of wave amplitudes and periods in the western arm of Glacier Bay from a catastrophic landslide in Tidal Inlet. This study draws upon preliminary findings of a field survey by Wieczorek et al. (2003), and evaluates the effects of variations in landslide source parameters on the wave characteristics.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03411","usgsCitation":"Geist, E.L., Jakob, M., Wieczoreck, G.F., and Dartnell, P., 2003, Preliminary hydrodynamic analysis of landslide-generated waves in Tidal Inlet, Glacier Bay National Park, Alaska: U.S. Geological Survey Open-File Report 2003-411, 20 p., https://doi.org/10.3133/ofr03411.","productDescription":"20 p.","numberOfPages":"19","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":5290,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0411/","linkFileType":{"id":5,"text":"html"}},{"id":180987,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03411.jpg"},{"id":285868,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0411/pdf/of03-411.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Bay National Park;Tidal Inlet","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -138.0,58.0 ], [ -138.0,59.0 ], [ -134.0,59.0 ], [ -134.0,58.0 ], [ -138.0,58.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db67342d","contributors":{"authors":[{"text":"Geist, Eric L. 0000-0003-0611-1150 egeist@usgs.gov","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":1956,"corporation":false,"usgs":true,"family":"Geist","given":"Eric","email":"egeist@usgs.gov","middleInitial":"L.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":246628,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jakob, Matthias","contributorId":82179,"corporation":false,"usgs":true,"family":"Jakob","given":"Matthias","email":"","affiliations":[],"preferred":false,"id":246631,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wieczoreck, Gerald F.","contributorId":7181,"corporation":false,"usgs":true,"family":"Wieczoreck","given":"Gerald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":246630,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":246629,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":53078,"text":"ofr03327 - 2003 - Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska","interactions":[],"lastModifiedDate":"2018-08-31T13:37:06","indexId":"ofr03327","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-327","title":"Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska","docAbstract":"Ocentral Brooks Range consists of two superposed north-directed contractional orogens, one formed between 140-120 Ma and the other at ~60-45 Ma. The older orogen was an arc-continent collisional zone characterized by far-traveled allochthons and relatively low structural relief. The younger orogen is a retroarc thrust belt with relatively low amounts of shortening and high structural relief. Folding and thrusting of the younger episode is superimposed on the thin-skinned deformational wedge of the earlier orogen and also produced a frontal triangle zone in a thick sequence of mid-Cretaceous foreland basin sediments to the north. Stable isotope compositions of calcite and quartz veins indicate two fluid events including: (1) an earlier, higher-temperature (~250-300° C) event that produced veins in deformed Devonian clastic rocks, and (2) a younger, lower-temperature (~150° C) event that deposited veins in deformed Mississippian through Albian strata. The fluids in the first event had variable d18O values, but nearly constant d13C values buffered by limestone lithologies. The vein-forming fluids in the second event had similarly variable d18O values, but with distinctly lower d13C values as a result of oxidation of organic matter and/or methane. Zircon fission track ages demonstrate cooling to temperatures below 200° C between 140-120 Ma for the Devonian rocks, whereas zircon and apatite fission track ages show that Mississippian to Albian rocks were never heated above 200° C and cooled below 110-90° C at ~60-45 Ma. These data are interpreted as indicating that the older, high-temperature fluid event was active during thrusting at 120-140 Ma, and the younger fluid event during deformation at ~60-45 Ma. The data and results presented in this poster will be published in early 2004 in Moore and others (in press).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03327","usgsCitation":"Moore, T.E., Potter, C.J., O'Sullivan, P., Shelton, K.L., and Underwood, M.B., 2003, Association of deformation and fluid events in the central Brooks Range fold-and-thrust belt, Northern Alaska: U.S. Geological Survey Open-File Report 2003-327, Sheet 1: 92.31 x 36.92 inches; Sheet 2: 92.31 x 36.92 inches, https://doi.org/10.3133/ofr03327.","productDescription":"Sheet 1: 92.31 x 36.92 inches; Sheet 2: 92.31 x 36.92 inches","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":182039,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03327.jpg"},{"id":5255,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0327/","linkFileType":{"id":5,"text":"html"}},{"id":285780,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0327/pdf/sheet1.pdf"},{"id":285781,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0327/pdf/sheet2.pdf"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -165.0,66.0 ], [ -165.0,71.0 ], [ -141.0,71.0 ], [ -141.0,66.0 ], [ -165.0,66.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66ce36","contributors":{"authors":[{"text":"Moore, Thomas E. 0000-0002-0878-0457 tmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-0878-0457","contributorId":1033,"corporation":false,"usgs":true,"family":"Moore","given":"Thomas","email":"tmoore@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":246568,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Potter, Christopher J. 0000-0002-2300-6670 cpotter@usgs.gov","orcid":"https://orcid.org/0000-0002-2300-6670","contributorId":1026,"corporation":false,"usgs":true,"family":"Potter","given":"Christopher","email":"cpotter@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":246567,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"O'Sullivan, Paul B.","contributorId":36627,"corporation":false,"usgs":true,"family":"O'Sullivan","given":"Paul B.","affiliations":[],"preferred":false,"id":246570,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shelton, Kevin L.","contributorId":48632,"corporation":false,"usgs":true,"family":"Shelton","given":"Kevin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":246571,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Underwood, Michael B.","contributorId":6844,"corporation":false,"usgs":true,"family":"Underwood","given":"Michael","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":246569,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":52926,"text":"wri034029 - 2003 - Hydrogeology of shallow basin-fill deposits in areas of Salt Lake Valley, Salt Lake County, Utah","interactions":[],"lastModifiedDate":"2017-02-07T15:53:38","indexId":"wri034029","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2003-4029","title":"Hydrogeology of shallow basin-fill deposits in areas of Salt Lake Valley, Salt Lake County, Utah","docAbstract":"A study of recently developed residential/commercial areas of Salt Lake Valley, Utah, was done from 1999 to 2001 in areas in which shallow ground water has the potential to move to a deeper aquifer that is used for public supply. Thirty monitoring wells were drilled and sampled in 1999 as part of the study. The ground water was either under unconfined or confined conditions, depending on depth to water and the presence or absence of fine-grained deposits. The wells were completed in the shallowest water-bearing zone capable of supplying water. Monitoring-well depths range from 23 to 154 feet. Lithologic, geophysical, hydraulic-conductivity, transmissivity, water-level, and water-temperature data were obtained for or collected from the wells.
Silt and clay layers noted on lithologic logs correlate with increases in electrical conductivity and natural gamma radiation shown on many of the electromagnetic-induction and natural gamma logs. Relatively large increases in electrical conductivity, determined from the electromagnetic-induction logs, with no major changes in natural gamma radiation are likely caused by increased dissolved-solids content in the ground water. Some intervals with high electrical conductivity correspond to areas in which water was present during drilling.
Unconfined conditions were present at 7 of 20 monitoring wells on the west side and at 2 of 10 wells on the east side of Salt Lake Valley. Fine-grained deposits confine the ground water. Anthropogenic compounds were detected in water sampled from most of the wells, indicating a connection with the land surface. Data were collected from 20 of the monitoring wells to estimate the hydraulic conductivity and transmissivity of the shallow ground-water system. Hydraulic-conductivity values of the shallow aquifer ranged from 30 to 540 feet per day. Transmissivity values of the shallow aquifer ranged from 3 to 1,070 feet squared per day. There is a close linear relation between transmissivity determined from slug-test analysis and transmissivity estimated from specific capacity.
Water-level fluctuations were measured in the 30 monitoring wells from 1999 to July 2001. Generally, water-level changes measured in wells on the west side of the valley followed a seasonal trend and wells on the east side showed less fluctuation or a gradual decline during the 2-year period. This may indicate that a larger percentage of recharge to the shallow ground-water system on the west side is from somewhat consistent seasonal sources, such as canals and unconsumed irrigation water, as compared to sources on the east side. Water levels measured in monitoring wells completed in the shallow ground-water system near large-capacity public-supply wells varied in response to ground-water withdrawals from the deeper confined aquifer. Water temperature was monitored in 23 wells. Generally, little or no change in water temperature was measured in monitoring wells with a depth to water greater than about 40 feet. The shallower the water level in the well, the greater the water-temperature change measured during the study.
Comparison of water levels measured in the monitoring wells and deeper wells in the same area indicate a downward gradient on the east side of the valley. Water levels in the shallow and deeper aquifers in the secondary recharge area on the west side of the valley were similar to those on the east side. Water levels measured in the monitoring wells and nearby wells completed in the deeper aquifer indicate that the vertical gradient can change with time and stresses on the system.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Salt Lake City, UT","doi":"10.3133/wri034029","usgsCitation":"Thiros, S.A., 2003, Hydrogeology of shallow basin-fill deposits in areas of Salt Lake Valley, Salt Lake County, Utah: U.S. Geological Survey Water-Resources Investigations Report 2003-4029, Report: viii, 23 p.; 1 Plate: 33.0 x 25.0 inches, https://doi.org/10.3133/wri034029.","productDescription":"Report: viii, 23 p.; 1 Plate: 33.0 x 25.0 inches","numberOfPages":"32","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":175008,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":334630,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/wri034029/pdf/wri034029.pdf","size":"2.0 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":334631,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/wri034029/pdf/plate_1.pdf","text":"Plate 1","size":"3.1 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":5014,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri034029/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Utah","county":"Salt Lake County","otherGeospatial":"Salt Lake Valley","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-111.6432,40.7953],[-111.6438,40.7926],[-111.6396,40.7872],[-111.6439,40.7849],[-111.6403,40.7795],[-111.647,40.7749],[-111.6427,40.7731],[-111.6397,40.7704],[-111.6379,40.7695],[-111.6343,40.7677],[-111.6312,40.7658],[-111.6258,40.7626],[-111.6246,40.7604],[-111.6234,40.759],[-111.6222,40.7554],[-111.621,40.7504],[-111.6204,40.7431],[-111.6199,40.7381],[-111.6193,40.7327],[-111.6163,40.7299],[-111.612,40.7272],[-111.6078,40.724],[-111.6066,40.7204],[-111.6048,40.7172],[-111.6018,40.7145],[-111.5976,40.7122],[-111.5927,40.7072],[-111.5897,40.704],[-111.5897,40.6995],[-111.597,40.6945],[-111.5989,40.6904],[-111.5959,40.6805],[-111.5966,40.6696],[-111.5954,40.6623],[-111.593,40.6541],[-111.5798,40.6459],[-111.5755,40.6405],[-111.5738,40.6346],[-111.5689,40.6332],[-111.5653,40.6273],[-111.5593,40.6218],[-111.5557,40.6173],[-111.5503,40.6159],[-111.5497,40.6118],[-111.5533,40.61],[-111.5552,40.6087],[-111.5588,40.6064],[-111.5588,40.6032],[-111.5583,40.5969],[-111.5583,40.5937],[-111.5638,40.5855],[-111.5716,40.5842],[-111.5789,40.5833],[-111.5971,40.5784],[-111.5983,40.5789],[-111.6038,40.5657],[-111.6129,40.5667],[-111.622,40.5667],[-111.6311,40.5672],[-111.6347,40.5699],[-111.6414,40.5608],[-111.6468,40.5568],[-111.6523,40.5554],[-111.6565,40.5532],[-111.6608,40.5432],[-111.6669,40.541],[-111.6796,40.5328],[-111.6869,40.5342],[-111.6935,40.5351],[-111.7038,40.5356],[-111.7129,40.532],[-111.7202,40.5266],[-111.7335,40.5307],[-111.7371,40.5262],[-111.7474,40.5253],[-111.7619,40.5276],[-111.771,40.5235],[-111.7819,40.5149],[-111.7873,40.509],[-111.7867,40.5072],[-111.791,40.4959],[-111.7928,40.4954],[-111.8013,40.495],[-111.811,40.4905],[-111.8261,40.4846],[-111.8328,40.4814],[-111.8394,40.4742],[-111.8424,40.4755],[-111.8461,40.4765],[-111.8515,40.4692],[-111.8551,40.4669],[-111.8594,40.4688],[-111.8654,40.4715],[-111.8696,40.4765],[-111.8811,40.4715],[-111.8878,40.4683],[-111.8926,40.4656],[-111.8969,40.4638],[-111.9035,40.4588],[-111.9222,40.4525],[-111.9126,40.4416],[-111.9192,40.438],[-111.9271,40.4348],[-111.9307,40.433],[-111.9434,40.4267],[-111.9513,40.4221],[-111.9531,40.4212],[-111.9561,40.4198],[-111.9627,40.4189],[-111.9663,40.4176],[-111.97,40.4158],[-111.9748,40.4149],[-111.9772,40.4158],[-111.9923,40.4235],[-112.0038,40.4262],[-112.0141,40.4344],[-112.0213,40.4398],[-112.0261,40.4493],[-112.0286,40.4575],[-112.0322,40.4643],[-112.0425,40.4602],[-112.0443,40.4561],[-112.0527,40.4543],[-112.0582,40.4516],[-112.0636,40.4484],[-112.069,40.4457],[-112.0751,40.447],[-112.0835,40.4466],[-112.092,40.447],[-112.0998,40.4448],[-112.1034,40.442],[-112.1113,40.4389],[-112.1131,40.4429],[-112.1125,40.4457],[-112.1125,40.4515],[-112.1174,40.4534],[-112.1198,40.4543],[-112.1252,40.4606],[-112.1283,40.4633],[-112.1343,40.4665],[-112.1428,40.471],[-112.1506,40.4687],[-112.1524,40.4669],[-112.1591,40.4624],[-112.1675,40.4642],[-112.173,40.4674],[-112.17,40.4719],[-112.1754,40.4814],[-112.1724,40.4846],[-112.1864,40.4964],[-112.1797,40.5018],[-112.1864,40.514],[-112.1779,40.5204],[-112.1774,40.5299],[-112.181,40.5399],[-112.1822,40.5431],[-112.1774,40.5544],[-112.1762,40.5562],[-112.1817,40.5617],[-112.1805,40.5676],[-112.1835,40.573],[-112.1793,40.5785],[-112.1745,40.5857],[-112.1781,40.5943],[-112.1769,40.6021],[-112.1739,40.6039],[-112.18,40.6088],[-112.18,40.6129],[-112.1879,40.6152],[-112.1927,40.6233],[-112.1933,40.6242],[-112.194,40.6261],[-112.1928,40.6383],[-112.1928,40.6397],[-112.197,40.6433],[-112.1976,40.6483],[-112.2025,40.6533],[-112.2007,40.6646],[-112.1995,40.6728],[-112.2032,40.6787],[-112.1996,40.6882],[-112.196,40.6927],[-112.1978,40.6995],[-112.2002,40.7045],[-112.2009,40.7077],[-112.2033,40.7113],[-112.2258,40.7262],[-112.2611,40.7706],[-112.2029,40.8075],[-112.2011,40.8079],[-112.1375,40.8457],[-112.0567,40.892],[-112.0069,40.9201],[-111.9558,40.9192],[-111.9558,40.897],[-111.9667,40.8843],[-111.968,40.8748],[-111.9601,40.8675],[-111.9613,40.8594],[-111.9625,40.8526],[-111.9576,40.8471],[-111.951,40.8466],[-111.9437,40.8421],[-111.9437,40.8371],[-111.9412,40.8326],[-111.9352,40.8262],[-111.9328,40.8208],[-111.9103,40.8226],[-111.8896,40.823],[-111.8811,40.8235],[-111.8684,40.8235],[-111.8526,40.8266],[-111.8374,40.8325],[-111.8259,40.8334],[-111.8186,40.8343],[-111.8082,40.8383],[-111.7985,40.8388],[-111.7851,40.8447],[-111.7778,40.8442],[-111.7645,40.8505],[-111.748,40.8546],[-111.7444,40.8609],[-111.7352,40.8627],[-111.7231,40.855],[-111.7176,40.8563],[-111.7079,40.8531],[-111.7012,40.8567],[-111.6982,40.8617],[-111.6818,40.8585],[-111.6745,40.8562],[-111.6684,40.8544],[-111.6624,40.8507],[-111.6575,40.8475],[-111.6563,40.8453],[-111.6655,40.8362],[-111.6564,40.8285],[-111.6497,40.8258],[-111.6437,40.8221],[-111.6401,40.8194],[-111.6432,40.7953]]]},\"properties\":{\"name\":\"Salt Lake\",\"state\":\"UT\"}}]}","publicComments":"National Water-Quality Assessment Program","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a49e4b07f02db6246a8","contributors":{"authors":[{"text":"Thiros, Susan A. 0000-0002-8544-553X sthiros@usgs.gov","orcid":"https://orcid.org/0000-0002-8544-553X","contributorId":965,"corporation":false,"usgs":true,"family":"Thiros","given":"Susan","email":"sthiros@usgs.gov","middleInitial":"A.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":246249,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":52922,"text":"wri024189 - 2003 - Water-quality and algal conditions in the Clackamas River basin, Oregon, and their relations to land and water management","interactions":[],"lastModifiedDate":"2017-02-07T09:15:12","indexId":"wri024189","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2002-4189","title":"Water-quality and algal conditions in the Clackamas River basin, Oregon, and their relations to land and water management","docAbstract":"In 1998, the U.S. Geological Survey sampled the Clackamas River, its major tributaries, and reservoirs to characterize basic water quality (nutrients, dissolved oxygen, pH, temperature, and conductance), water quantity (water sources within the basin), and algal conditions (biomass and species composition). Sampling locations reflected the dominant land uses in the basin (forest management, agriculture, and urban development) as well as the influence of hydroelectric projects, to examine how these human influences might be affecting water quality and algal conditions.\r\n\r\nNuisance algal growths, with accompanying negative effects on water quality, were observed at several locations in the basin during this study. Algal biomass in the lower Clackamas River reached a maximum of 300 mg/m2 chlorophyll a, producing nuisance algal conditions, including fouled stream channels and daily fluctuations in pH and dissolved oxygen concentrations to levels that did not meet water-quality standards.\r\n\r\nAlgal biomass was highest at sites immediately downstream from the hydroelectric project's reservoirs and/or powerhouses. Nuisance algal conditions also were observed in some of the tributaries, including the North Fork of the Clackamas River, Clear Creek, Rock Creek, and Sieben Creek. High amounts of drifting algae increased turbidity levels in the Clackamas River during June, which coincided with a general increase in the concentration of disinfection by-products found in treated Clackamas River water used for drinking, presumably due to the greater amounts of organic matter in the river.\r\n\r\nThe highest nutrient concentrations were found in the four lowermost tributaries (Deep, Richardson, Rock, and Sieben Creeks), where most of the agriculture and urban development is concentrated. Of these, the greatest load of nutrients came from Deep Creek, which had both high nutrient concentrations and relatively high streamflow. Streams draining forestland in the upper basin (upper Clackamas River and Oak Grove Fork) had the highest concentrations of phosphorus (and lowest concentrations of nitrogen), and streams draining forestland in the middle basin (Clear Creek, Eagle Creek, and the North Fork of the Clackamas River) had relatively high concentrations of nitrogen (and low concentrations of phosphorus). In contrast, relatively low concentrations of both nitrogen and phosphorus were found at the two reference streams, reflecting their pristine condition. Relatively high phosphorus levels in the upper basin are probably due to the erosion of naturally occurring phosphorus deposits in this area. Likely sources of nitrogen (mostly nitrate) in the forested watersheds include nitrogen-fixing plants, atmospheric deposition, timber harvesting, and applications of urea fertilizers.","language":"ENGLISH","doi":"10.3133/wri024189","usgsCitation":"Carpenter, K., 2003, Water-quality and algal conditions in the Clackamas River basin, Oregon, and their relations to land and water management: U.S. Geological Survey Water-Resources Investigations Report 2002-4189, x, 114 p. : ill., maps (1 folded in pocket) ; 28 cm., https://doi.org/10.3133/wri024189.","productDescription":"x, 114 p. : ill., maps (1 folded in pocket) ; 28 cm.","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":174316,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":5010,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri024189/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e6e4b07f02db5e722a","contributors":{"authors":[{"text":"Carpenter, Kurt D. kdcar@usgs.gov","contributorId":1372,"corporation":false,"usgs":true,"family":"Carpenter","given":"Kurt D.","email":"kdcar@usgs.gov","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":false,"id":246234,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":69700,"text":"i2731A - 2003 - Sea floor topography of quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts","interactions":[],"lastModifiedDate":"2022-08-17T20:49:18.762255","indexId":"i2731A","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2731","subseriesTitle":"Geolgoic Investigations Series","chapter":"A","title":"Sea floor topography of quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2731A","usgsCitation":"Butman, B., Hayes, L., Danforth, W.W., and Valentine, P.C., 2003, Sea floor topography of quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts: U.S. Geological Survey IMAP 2731, 1 Plate: 27.00 × 33.00 inches, https://doi.org/10.3133/i2731A.","productDescription":"1 Plate: 27.00 × 33.00 inches","costCenters":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":191368,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110462,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_62419.htm","linkFileType":{"id":5,"text":"html"},"description":"62419"},{"id":6370,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i-2731a/","linkFileType":{"id":5,"text":"html"}}],"scale":"25000","country":"United States","state":"Massachusetts","otherGeospatial":"Massachusetts Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.7875,\n 42.2025\n ],\n [\n -70.6,\n 42.2025\n ],\n [\n -70.6,\n 42.3222\n ],\n [\n -70.7875,\n 42.3222\n ],\n [\n -70.7875,\n 42.2025\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc5fd","contributors":{"authors":[{"text":"Butman, Bradford 0000-0002-4174-2073 bbutman@usgs.gov","orcid":"https://orcid.org/0000-0002-4174-2073","contributorId":943,"corporation":false,"usgs":true,"family":"Butman","given":"Bradford","email":"bbutman@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":280924,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayes, Laura 0000-0002-4488-1343 lhayes@usgs.gov","orcid":"https://orcid.org/0000-0002-4488-1343","contributorId":2791,"corporation":false,"usgs":true,"family":"Hayes","given":"Laura","email":"lhayes@usgs.gov","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":280925,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Danforth, W. W.","contributorId":16386,"corporation":false,"usgs":true,"family":"Danforth","given":"W.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":280926,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valentine, P. C.","contributorId":46505,"corporation":false,"usgs":true,"family":"Valentine","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":280927,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":69696,"text":"i2790 - 2003 - Crater Lake revealed","interactions":[],"lastModifiedDate":"2018-10-24T09:40:00","indexId":"i2790","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2790","title":"Crater Lake revealed","docAbstract":"Around 500,000 people each year visit Crater Lake National Park in the Cascade Range of southern Oregon. Volcanic peaks, evergreen forests, and Crater Lake’s incredibly blue water are the park’s main attractions. Crater Lake partially fills the caldera that formed approximately 7,700 years ago by the eruption and subsequent collapse of a 12,000-foot volcano called Mount Mazama. The caldera-forming or climactic eruption of Mount Mazama drastically changed the landscape all around the volcano and spread a blanket of volcanic ash at least as far away as southern Canada.
Prior to the climactic event, Mount Mazama had a 400,000 year history of cone building activity like that of other Cascade volcanoes such as Mount Shasta. Since the climactic eruption, there have been several less violent, smaller postcaldera eruptions within the caldera itself. However, relatively little was known about the specifics of these eruptions because their products were obscured beneath Crater Lake’s surface. As the Crater Lake region is still potentially volcanically active, understanding past eruptive events is important to understanding future eruptions, which could threaten facilities and people at Crater Lake National Park and the major transportation corridor east of the Cascades.
Recently, the lake bottom was mapped with a high-resolution multibeam echo sounder. The new bathymetric survey provides a 2m/pixel view of the lake floor from its deepest basins virtually to the shoreline. Using Geographic Information Systems (GIS) applications, the bathymetry data can be visualized and analyzed to shed light on the geology, geomorphology, and geologic history of Crater Lake.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/i2790","isbn":"0607906502","collaboration":"Prepared in cooperation with the National Park Service","usgsCitation":"Ramsey, D.W., Dartnell, P., Bacon, C.R., Robinson, J., and Gardner, J.V., 2003, Crater Lake revealed: U.S. Geological Survey IMAP 2790, 38.01 x 25.01 inches, https://doi.org/10.3133/i2790.","productDescription":"38.01 x 25.01 inches","costCenters":[{"id":412,"text":"National Cooperative Geologic Mapping Program","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":191366,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":280491,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/imap/2790/pdf/i2790.pdf","text":"Map","size":"6.7 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":110429,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_55153.htm","linkFileType":{"id":5,"text":"html"},"description":"55153"},{"id":6369,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/2790/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Oregon","otherGeospatial":"Cascade Range, Crater Lake, Crater Lake National Park","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.17964,42.891988 ], [ -122.17964,42.988538 ], [ -122.032809,42.988538 ], [ -122.032809,42.891988 ], [ -122.17964,42.891988 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683773","contributors":{"authors":[{"text":"Ramsey, David W. 0000-0003-1698-2523 dramsey@usgs.gov","orcid":"https://orcid.org/0000-0003-1698-2523","contributorId":3819,"corporation":false,"usgs":true,"family":"Ramsey","given":"David","email":"dramsey@usgs.gov","middleInitial":"W.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":280919,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":280916,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bacon, Charles R. 0000-0002-2165-5618 cbacon@usgs.gov","orcid":"https://orcid.org/0000-0002-2165-5618","contributorId":2909,"corporation":false,"usgs":true,"family":"Bacon","given":"Charles","email":"cbacon@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":280918,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Robinson, Joel E. 0000-0002-5193-3666 jrobins@usgs.gov","orcid":"https://orcid.org/0000-0002-5193-3666","contributorId":2757,"corporation":false,"usgs":true,"family":"Robinson","given":"Joel E.","email":"jrobins@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":280917,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gardner, James V.","contributorId":93035,"corporation":false,"usgs":true,"family":"Gardner","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":280920,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":69697,"text":"i2781 - 2003 - The North America tapestry of time and terrain","interactions":[],"lastModifiedDate":"2017-10-19T09:52:36","indexId":"i2781","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2781","title":"The North America tapestry of time and terrain","docAbstract":"The North America Tapestry of Time and Terrain (1:8,000,000 scale) is a product of the US Geological Survey in the I-map series (I-2781). This map was prepared in collaboration with the Geological Survey of Canada and the Mexican Consejo Recursos de Minerales.
This cartographic Tapestry is woven from a geologic map and a shaded relief image. This digital combination reveals the geologic history of North America through the interrelation of rock type, topography and time. Regional surface processes as well as continent-scale tectonic events are exposed in the three dimensions of space and the fourth dimension, geologic time. The large map shows the varying age of bedrock underlying North America, while four smaller maps show the distribution of four principal types of rock: sedimentary, volcanic, plutonic and metamorphic.
This map expands the original concept of the 2000 Tapestry of Time and Terrain, by José F. Vigil, Richard J. Pike and David G. Howell, which covered the conterminous United States. The U.S. Tapestry poster and website have been popular in classrooms, homes, and even the Google office building, and we anticipate the North America Tapestry will have a similarly wide appeal, and to a larger audience.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2781","isbn":"0607891084","usgsCitation":"Barton, K.E., Howell, D.G., and Vigil, J.F., 2003, The North America tapestry of time and terrain (Version 1.0): U.S. Geological Survey IMAP 2781, Map, https://doi.org/10.3133/i2781.","productDescription":"Map","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":191367,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":10444,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i2781/","linkFileType":{"id":5,"text":"html"}},{"id":346942,"rank":4,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/imap/i2781/i2781_c.pdf","text":"Map","size":"131 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":346943,"rank":5,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/imap/i2781/i2781_c_med.pdf","text":"Map (medium-resolution, 300 dpi)","size":"22.8 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":346944,"rank":6,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/imap/i2781/i2781_c_low.pdf","text":"Map (low-resolution, 144 dpi)","size":"2.8 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":346945,"rank":7,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/imap/i2781/NorthAmericaTapestry.jpg","text":"Map (JPEG)","size":"1.2 MB"},{"id":110422,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54758.htm","linkFileType":{"id":5,"text":"html"},"description":"54758"}],"otherGeospatial":"North America","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -167.6953125,\n 6.664607562172573\n ],\n [\n -50.9765625,\n 6.664607562172573\n ],\n [\n -50.9765625,\n 83.52016238353205\n ],\n [\n -167.6953125,\n 83.52016238353205\n ],\n [\n -167.6953125,\n 6.664607562172573\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b078","contributors":{"authors":[{"text":"Barton, Kate E.","contributorId":37018,"corporation":false,"usgs":true,"family":"Barton","given":"Kate","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":280921,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howell, David G.","contributorId":59874,"corporation":false,"usgs":true,"family":"Howell","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":280922,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vigil, Jose F.","contributorId":64346,"corporation":false,"usgs":true,"family":"Vigil","given":"Jose","email":"","middleInitial":"F.","affiliations":[],"preferred":true,"id":280923,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":69701,"text":"i2731B - 2003 - Shaded relief and sea floor topography of Quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts","interactions":[],"lastModifiedDate":"2022-09-28T21:11:53.542892","indexId":"i2731B","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2731","subseriesTitle":"Geolgoic Investigations Series","chapter":"B","title":"Shaded relief and sea floor topography of Quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2731B","usgsCitation":"Butman, B., Hayes, L., Danforth, W.W., and Valentine, P.C., 2003, Shaded relief and sea floor topography of Quadrangle 1 in western Massachusetts Bay offshore of Boston, Massachusetts: U.S. Geological Survey IMAP 2731, 1 Plate: 27.00 × 35.00 inches, https://doi.org/10.3133/i2731B.","productDescription":"1 Plate: 27.00 × 35.00 inches","costCenters":[],"links":[{"id":110463,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_62420.htm","linkFileType":{"id":5,"text":"html"},"description":"62420"},{"id":191369,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6371,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i-2731b/","linkFileType":{"id":5,"text":"html"}}],"scale":"25000","country":"United States","state":"Massachusetts","otherGeospatial":"Massachusetts Bay, Quadrangle 1","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.7875,\n 42.2025\n ],\n [\n -70.6,\n 42.2025\n ],\n [\n -70.6,\n 42.3222\n ],\n [\n -70.7875,\n 42.3222\n ],\n [\n -70.7875,\n 42.2025\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b06e4b07f02db69a36e","contributors":{"authors":[{"text":"Butman, Bradford 0000-0002-4174-2073 bbutman@usgs.gov","orcid":"https://orcid.org/0000-0002-4174-2073","contributorId":943,"corporation":false,"usgs":true,"family":"Butman","given":"Bradford","email":"bbutman@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":280928,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayes, Laura 0000-0002-4488-1343 lhayes@usgs.gov","orcid":"https://orcid.org/0000-0002-4488-1343","contributorId":2791,"corporation":false,"usgs":true,"family":"Hayes","given":"Laura","email":"lhayes@usgs.gov","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":280929,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Danforth, W. W.","contributorId":16386,"corporation":false,"usgs":true,"family":"Danforth","given":"W.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":280930,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valentine, P. C.","contributorId":46505,"corporation":false,"usgs":true,"family":"Valentine","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":280931,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":51523,"text":"ofr03293 - 2003 - Preliminary geologic map of the San Bernardino 30' x 60' quadrangle, California (includes preliminary GIS database)","interactions":[],"lastModifiedDate":"2021-09-23T19:57:05.444366","indexId":"ofr03293","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-293","title":"Preliminary geologic map of the San Bernardino 30' x 60' quadrangle, California (includes preliminary GIS database)","docAbstract":"The San Bernardino 30'x60' quadrangle, southern California, is diagonally\r\n bisected by the San Andreas Fault Zone, separating the San Gabriel and San\r\n Bernardino Mountains, major elements of California's east-oriented Transverse\r\n Ranges Province. Included in the southern part of the quadrangle is the northern\r\n part of the Peninsular Ranges Province and the northeastern part of the\r\n oil-producing Los Angeles basin. The northern part of the quadrangle includes\r\n the southern part of the Mojave Desert Province. Pre-Quaternary rocks within the\r\n San Bernardino quadrangle consist of three extensive, well-defined basement rock\r\n assemblages, the San Gabriel Mountains, San Bernardino Mountains, and the\r\n Peninsular Ranges assemblages, and a fourth assemblage restricted to a narrow\r\n block bounded by the active San Andreas Fault and the Mill Creek Fault. Each of\r\n these basement rock assemblages is characterized by a relatively unique suite of\r\n rocks that was amalgamated by the end of the Cretaceous and (or) early Cenozoic.\r\n Some Tertiary sedimentary and volcanic rocks are unique to specific assemblages,\r\n and some overlap adjacent assemblages. A few Miocene and Pliocene units cross\r\n the boundaries of adjacent assemblages, but are dominant in only one. Tectonic\r\n events directly and indirectly related to the San Andreas Fault system have\r\n partly dismembered the basement rocks during the Neogene, forming the modern-day\r\n physiographic provinces.\r\n \r\n Rocks of the four basement rock assemblages are divisible into an older suite of\r\n Late Cretaceous and older rocks and a younger suite of post-Late Cretaceous rocks.\r\n The age span of the older suite varies considerably from assemblage to assemblage,\r\n and the point in time that separates the two suites varies slightly. In the\r\n Peninsular Ranges, the older rocks were formed from the Paleozoic to the end of\r\n Late Cretaceous plutonism, and in the Transverse Ranges over a longer period of\r\n time extending from the Proterozoic to metamorphism at the end of the Cretaceous.\r\n Within the Peninsular Ranges a profound diachronous unconformity marks the\r\n pre-Late Cretaceous-post-Late Cretaceous subdivision, but within the Transverse\r\n Ranges the division appears to be slightly younger, perhaps coinciding with the\r\n end of the Cretaceous or extending into the early Cenozoic. Initial docking of\r\n Peninsular Ranges rocks with Transverse Ranges rocks appears to have occurred at\r\n the terminus of plutonism within the Peninsular Ranges. During the Paleogene\r\n there was apparently discontinuous but widespread deposition on the basement rocks\r\n and little tectonic disruption of the amalgamated older rocks. Dismemberment of\r\n these Paleogene and older rocks by strike-slip, thrust, and reverse faulting began\r\n in the Neogene and is ongoing. The Peninsular Ranges basement rock assemblage is\r\n made up of the Peninsular Ranges batholith and a variety of metasedimentary rocks.\r\n Most of the plutonic rocks of the batholith are granodiorite and tonalite in\r\n composition; primary foliation is common, mainly in the eastern part. Tertiary\r\n sedimentary rocks of the Los Angeles Basin crop out in the Puente and San Jose\r\n Hills along with the spatially associated Glendora Volcanics; both units span the\r\n boundary between the Peninsular Ranges and San Gabriel Mountains basement rock\r\n assemblages.\r\n \r\n The San Gabriel Mountains basement rock assemblage includes two discrete areas,\r\n the high standing San Gabriel Mountains and the relatively low San Bernardino\r\n basin east of the San Jacinto Fault. The basement rock assemblage is\r\n characterized by a unique suite of rocks that include anorthosite, Proterozoic\r\n and Paleozoic gneiss and schist, the Triassic","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03293","usgsCitation":"Morton, D.M., and Miller, F.K., 2003, Preliminary geologic map of the San Bernardino 30' x 60' quadrangle, California (includes preliminary GIS database): U.S. Geological Survey Open-File Report 2003-293, HTML Document, https://doi.org/10.3133/ofr03293.","productDescription":"HTML Document","costCenters":[],"links":[{"id":179112,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110443,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_58935.htm","linkFileType":{"id":5,"text":"html"},"description":"58935"},{"id":4526,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/of03-293/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","otherGeospatial":"San Bernardino 30' x 60' quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.0,\n 34\n ],\n [\n -118,\n 34\n ],\n [\n -118,\n 34.5\n ],\n [\n -117.0,\n 34.5\n ],\n [\n -117.0,\n 34\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e47e3e4b07f02db4bb30c","contributors":{"authors":[{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":243830,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, Fred K.","contributorId":89503,"corporation":false,"usgs":true,"family":"Miller","given":"Fred","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":243831,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":51520,"text":"ofr03302 - 2003 - Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California","interactions":[],"lastModifiedDate":"2023-06-22T16:57:23.554746","indexId":"ofr03302","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-302","title":"Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California","docAbstract":"This geologic database of the Redlands 7.5' quadrangle was prepared by the Southern California Areal Mapping Project (SCAMP), a regional geologic-mapping project sponsored jointly by the U.S. Geological Survey and the California Geological Survey. The database was developed as a contribution to the National Cooperative Geologic Mapping Program's National Geologic Map Database, and is intended to provide a general geologic setting of the Redlands quadrangle. The database and map provide information about earth materials and geologic structures, including faults and folds that have developed in the quadrangle due to complexities in the San Andreas Fault system.
\nThe Redlands 7.5' quadrangle contains earth materials and structures that provide insight into the late Cenozoic geologic evolution of the southern California Inland Empire region. Important stratigraphic and structural elements include (1) the modern trace of the San Andreas and San Jacinto faults and (2) late Tertiary and Quaternary sedimentary materials and geologic structures that formed during the last million years or so and that record complex geologic interactions within the San Andreas Fault system. These materials and the structures that deform them provide the geologic framework for investigations of earthquake hazards and ground-water recharge and subsurface flow. Geologic information contained in the Redlands database is general-purpose data that is applicable to land-related investigations in the earth and biological sciences. The term \"general-purpose\" means that all geologic-feature classes have minimal information content adequate to characterize their general geologic characteristics and to interpret their general geologic history. However, no single feature class has enough information to definitively characterize its properties and origin. For this reason the database cannot be used for site-specific geologic evaluations, although it can be used to plan and guide investigations at the site-specific level.
\nThis summary pamphlet discusses major categories of surficial materials in the Redlands quadrangle, and provides a conceptual framework and basis for how geologicmap units containing such materials are recognized and correlated.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03302","collaboration":"Prepared in cooperation with San Bernardino Vally Municipal Water District and California Geological Survey","usgsCitation":"Matti, J.C., Morton, D.M., Cox, B.F., Kendrick, K.J., Cossette, P.M., Jones, B., and Kennedy, S.A., 2003, Geologic map and digital database of the Redlands 7.5' quadrangle, San Bernardino and Riverside Counties, California (Version 1.0): U.S. Geological Survey Open-File Report 2003-302, Pamphlet: 14 p.; 1 Plate: 44.35 x 31.14 inches; Readme: Metadata; Database, https://doi.org/10.3133/ofr03302.","productDescription":"Pamphlet: 14 p.; 1 Plate: 44.35 x 31.14 inches; Readme: Metadata; Database","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":179213,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03302.gif"},{"id":110445,"rank":11,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_readme.pdf","linkFileType":{"id":5,"text":"html"},"description":"58938"},{"id":4524,"rank":10,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0302/","linkFileType":{"id":5,"text":"html"}},{"id":398349,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_58938.htm"},{"id":285762,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_map.pdf"},{"id":285759,"rank":7,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2003/0302/red_met.html"},{"id":285763,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_pamphlet.pdf"},{"id":285760,"rank":5,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2003/0302/red.tar.gz"},{"id":285761,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_attribute_codes.pdf"},{"id":285764,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/red_map.ps.gz"},{"id":285765,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0302/pdf/red_dmu.pdf"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County, San Bernardino County","otherGeospatial":"Redlands quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.25,34.0 ], [ -117.25,34.125 ], [ -117.125,34.125 ], [ -117.125,34.0 ], [ -117.25,34.0 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a49be","contributors":{"authors":[{"text":"Matti, Jonathan C. jmatti@usgs.gov","contributorId":3666,"corporation":false,"usgs":true,"family":"Matti","given":"Jonathan","email":"jmatti@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":243819,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":243820,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cox, Brett F. bcox@usgs.gov","contributorId":5793,"corporation":false,"usgs":true,"family":"Cox","given":"Brett","email":"bcox@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":243821,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kendrick, Katherine J. 0000-0002-9839-6861 kendrick@usgs.gov","orcid":"https://orcid.org/0000-0002-9839-6861","contributorId":2716,"corporation":false,"usgs":true,"family":"Kendrick","given":"Katherine","email":"kendrick@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":243818,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cossette, Pamela M. 0000-0002-9608-6595 pcossette@usgs.gov","orcid":"https://orcid.org/0000-0002-9608-6595","contributorId":1458,"corporation":false,"usgs":true,"family":"Cossette","given":"Pamela","email":"pcossette@usgs.gov","middleInitial":"M.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243822,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jones, Bradley","contributorId":140585,"corporation":false,"usgs":true,"family":"Jones","given":"Bradley","email":"","affiliations":[],"preferred":false,"id":243823,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kennedy, Stephen A.","contributorId":140207,"corporation":false,"usgs":true,"family":"Kennedy","given":"Stephen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":243824,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":51400,"text":"ofr03251 - 2003 - Chromium geochemistry of serpentinous sediment in the Willow core, Santa Clara County, California","interactions":[],"lastModifiedDate":"2018-12-03T11:18:42","indexId":"ofr03251","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-251","title":"Chromium geochemistry of serpentinous sediment in the Willow core, Santa Clara County, California","docAbstract":"A preliminary investigation of Cr geochemistry in serpentinous sediment completed for a multiple-aquifer ground-water monitoring well (Willow core of Santa Clara County, CA) determined sediment at depths >225 meters contains Cr concentrations ranging from 195 to 1155 mg/kg. Serpentinous sediment from this site is a potential source of non-anthropogenic Cr contamination. Chromium-bearing minerals such as Cr-spinel appear to be the main source of Cr in the sediment; however, Cr-bearing silicates and clay minerals are additional Cr sources. Aqueous Cr concentrations in the sediment are <4.6 mg/L; however, the valence of Cr was not identified in the solutions or in the sediment. Although there is no indication of Cr(VI) contamination derived from the serpentinous sediment, elevated Cr concentrations in the sediment, the observed ‘dissolution’ textures of the Cr-bearing minerals, the estimated redox environment, and water chemistry indicate the formation of Cr(VI) is potentially favorable.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03251","usgsCitation":"Oze, C.J., LaForce, M.J., Wentworth, C.M., Hanson, R.T., Bird, D.K., and Coleman, R.G., 2003, Chromium geochemistry of serpentinous sediment in the Willow core, Santa Clara County, California: U.S. Geological Survey Open-File Report 2003-251, 10 p., https://doi.org/10.3133/ofr03251.","productDescription":"10 p.","numberOfPages":"24","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":178740,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03251.jpg"},{"id":285703,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0251/pdf/of03-251.pdf"},{"id":4407,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0251/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","county":"Santa Clara County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.0,37.125 ], [ -122.0,37.375 ], [ -121.625,37.375 ], [ -121.625,37.125 ], [ -122.0,37.125 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dde4b07f02db5e2225","contributors":{"authors":[{"text":"Oze, Christopher J.","contributorId":107774,"corporation":false,"usgs":true,"family":"Oze","given":"Christopher","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":243466,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LaForce, Matthew J.","contributorId":65158,"corporation":false,"usgs":true,"family":"LaForce","given":"Matthew","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":243464,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wentworth, Carl M. 0000-0003-2569-569X cwent@usgs.gov","orcid":"https://orcid.org/0000-0003-2569-569X","contributorId":1178,"corporation":false,"usgs":true,"family":"Wentworth","given":"Carl","email":"cwent@usgs.gov","middleInitial":"M.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243462,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hanson, Randall T. 0000-0002-9819-7141 rthanson@usgs.gov","orcid":"https://orcid.org/0000-0002-9819-7141","contributorId":801,"corporation":false,"usgs":true,"family":"Hanson","given":"Randall","email":"rthanson@usgs.gov","middleInitial":"T.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":243461,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bird, Dennis K.","contributorId":9339,"corporation":false,"usgs":true,"family":"Bird","given":"Dennis","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":243463,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Coleman, Robert G.","contributorId":88022,"corporation":false,"usgs":true,"family":"Coleman","given":"Robert","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":243465,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":51517,"text":"ofr03317 - 2003 - Application of magnetic and electromagnetic methods to locate buried metal","interactions":[],"lastModifiedDate":"2012-02-02T00:11:27","indexId":"ofr03317","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-317","title":"Application of magnetic and electromagnetic methods to locate buried metal","language":"ENGLISH","doi":"10.3133/ofr03317","usgsCitation":"Horton, R., 2003, Application of magnetic and electromagnetic methods to locate buried metal (Version 1.0): U.S. Geological Survey Open-File Report 2003-317, 3 p., https://doi.org/10.3133/ofr03317.","productDescription":"3 p.","costCenters":[],"links":[{"id":178669,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4521,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-317","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac6e4b07f02db67ab4f","contributors":{"authors":[{"text":"Horton, Robert 0000-0001-5578-3733 rhorton@usgs.gov","orcid":"https://orcid.org/0000-0001-5578-3733","contributorId":612,"corporation":false,"usgs":true,"family":"Horton","given":"Robert","email":"rhorton@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":243804,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":51518,"text":"ofr03294 - 2003 - Hydrogeologic factors that influence ground water movement in the desert southwest United States","interactions":[],"lastModifiedDate":"2023-06-22T16:55:26.267394","indexId":"ofr03294","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-294","title":"Hydrogeologic factors that influence ground water movement in the desert southwest United States","docAbstract":"A project to study ground-water and surface-water interactions in the desert southwestern United States was initiated in 2001 by the Tucson, Arizona office of the Water Resources Division, U.S. Geological Survey (USGS). One of the goals of the Southwest Ground-water Resources Project was to develop a regional synthesis that includes the use of available digital geologic data, which is growing rapidly due to the increasing use of Geographic Information Systems (GIS). Included in this report are the digital maps and databases of geologic information that should have a direct impact on the studies of ground-water flow and surface-water interaction.
\nGround-water flow is governed by many geologic factors or elements including rock and soil permeability, stratigraphy and structural features. These elements directly influence ground-water flow, which is key to understanding the possible inter-connectivity of aquifer systems in desert basins of the southwestern United States. We derive these elements from the evaluation of regional geology and localized studies of hydrogeologic basins. These elements can then be applied to other unstudied areas throughout the desert southwest. This report presents a regional perspective of the geologic elements controlling ground-water systems in the desert southwest that may eventually lead to greater focus on smaller sub-regions and ultimately, to individual ground-water basins.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03294","usgsCitation":"Chuang, F.C., McKee, E.H., and Howard, K.A., 2003, Hydrogeologic factors that influence ground water movement in the desert southwest United States (Version 1.0): U.S. Geological Survey Open-File Report 2003-294, 37 p., https://doi.org/10.3133/ofr03294.","productDescription":"37 p.","numberOfPages":"38","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":285740,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/table1.xls"},{"id":285739,"rank":5,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2003/0294/of03-294db.zip"},{"id":285737,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/pdf/of03-294pdf.zip"},{"id":285738,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0294/eps/of03-294ps.zip"},{"id":285736,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0294/pdf/of03-294.pdf"},{"id":4522,"rank":7,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0294/","linkFileType":{"id":5,"text":"html"}},{"id":178670,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03294.jpg"}],"scale":"2000000","country":"United States","state":"Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Utah","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.0,30.0 ], [ -123.0,42.0 ], [ -107.0,42.0 ], [ -107.0,30.0 ], [ -123.0,30.0 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4fe4b07f02db6287b6","contributors":{"authors":[{"text":"Chuang, Frank C.","contributorId":35600,"corporation":false,"usgs":true,"family":"Chuang","given":"Frank","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":243807,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKee, Edwin H. mckee@usgs.gov","contributorId":3728,"corporation":false,"usgs":true,"family":"McKee","given":"Edwin","email":"mckee@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":243806,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Howard, Keith A. 0000-0002-6462-2947 khoward@usgs.gov","orcid":"https://orcid.org/0000-0002-6462-2947","contributorId":3439,"corporation":false,"usgs":true,"family":"Howard","given":"Keith","email":"khoward@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":243805,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":51525,"text":"ofr03281 - 2003 - Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California","interactions":[],"lastModifiedDate":"2023-06-22T16:56:22.422239","indexId":"ofr03281","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-281","title":"Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California","docAbstract":"Open-File Report 03-281 contains a digital geologic map database of the Elsinore 7.5’ quadrangle, Riverside County, California that includes:
\n1. ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map.
\n2. A Postscript file to plot the geologic map on a topographic base, and containing a Correlation of Map Units diagram (CMU), a Description of Map Units (DMU), and an index map.
\n3. Portable Document Format (.pdf) files of:
\na. This Readme; includes in Appendix I, data contained in els_met.txt
\nb. The same graphic as plotted in 2 above. Test plots have not produced precise 1:24,000-scale map sheets. Adobe Acrobat page size setting influences map scale.
\nThe Correlation of Map Units and Description of Map Units is in the editorial format of USGS Geologic Investigations Series (I-series) maps but has not been edited to comply with I-map standards. Within the geologic map data package, map units are identified by standard geologic map criteria such as formation-name, age, and lithology. Where known, grain size is indicated on the map by a subscripted letter or letters following the unit symbols as follows: lg, large boulders; b, boulder; g, gravel; a, arenaceous; s, silt; c, clay; e.g. Qyfa is a predominantly young alluvial fan deposit that is arenaceous. Multiple letters are used for more specific identification or for mixed units, e.g., Qfysa is a silty sand. In some cases, mixed units are indicated by a compound symbol; e.g., Qyf2sc. Even though this is an Open-File Report and includes the standard USGS Open-File disclaimer, the report closely adheres to the stratigraphic nomenclature of the U.S. Geological Survey. Descriptions of units can be obtained by viewing or plotting the .pdf file (3b above) or plotting the postscript file (2 above).
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03281","collaboration":"Prepared in cooperation with the California Geological Survey","usgsCitation":"Morton, D.M., Weber, F.H., Alvarez, R., and Burns, D., 2003, Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California (Version 1.0): U.S. Geological Survey Open-File Report 2003-281, 1 Plate: 45.50 x 31.56 inches; Readme; Metadata; Database, https://doi.org/10.3133/ofr03281.","productDescription":"1 Plate: 45.50 x 31.56 inches; Readme; Metadata; Database","numberOfPages":"18","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":110441,"rank":9,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2003/0281/pdf/README.pdf","linkFileType":{"id":5,"text":"html"},"description":"58858"},{"id":4527,"rank":8,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0281/","linkFileType":{"id":5,"text":"html"}},{"id":398350,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_58858.htm"},{"id":285730,"rank":6,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2003/0281/README.txt"},{"id":285731,"rank":4,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2003/0281/els_met.txt"},{"id":285732,"rank":3,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2003/0281/els.tar.gz"},{"id":285733,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2003/0281/pdf/els_map.pdf"},{"id":285734,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0281/els_map.ps.gz"},{"id":179289,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03281.gif"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County","otherGeospatial":"Elsinore quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.375,33.625 ], [ -117.375,33.75 ], [ -117.25,33.75 ], [ -117.25,33.625 ], [ -117.375,33.625 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0be4b07f02db5fbe45","contributors":{"authors":[{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":243833,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weber, F. Harold Jr.","contributorId":10466,"corporation":false,"usgs":true,"family":"Weber","given":"F.","suffix":"Jr.","email":"","middleInitial":"Harold","affiliations":[],"preferred":false,"id":243834,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alvarez, Rachel M.","contributorId":25078,"corporation":false,"usgs":true,"family":"Alvarez","given":"Rachel M.","affiliations":[],"preferred":false,"id":243836,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burns, Diane","contributorId":16093,"corporation":false,"usgs":true,"family":"Burns","given":"Diane","email":"","affiliations":[],"preferred":false,"id":243835,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":51555,"text":"ofr03142 - 2003 - Results of Test-Hole Drilling in Well-Field Areas North of Tampa, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:11:31","indexId":"ofr03142","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-142","title":"Results of Test-Hole Drilling in Well-Field Areas North of Tampa, Florida","docAbstract":"A total of 32 test holes were drilled in well-field areas of Hillsborough, Pasco, and Pinellas Counties in the early 1970's to collect information on the hydraulic and geologic properties of shallow formations overlying the Upper Floridan aquifer. Lithologic profiles were compiled and geohydrologic units identified for each test hole. At most test holes, natural-gamma logs were run to identify the confining unit that separates the surficial aquifer system from the Upper Floridan aquifer. Selected core samples were analyzed in the laboratory for vertical hydraulic conductivity, grain size, sorting, specific gravity, effective porosity, cation-exchange capacity, and mineralogy. Following drilling, casing was installed in each test hole and water levels were monitored. The data were used in the preparation of regional water-level maps and in the construction of a numerical model of ground-water flow in the well-field areas.","language":"ENGLISH","doi":"10.3133/ofr03142","usgsCitation":"Hutchinson, C.B., 2003, Results of Test-Hole Drilling in Well-Field Areas North of Tampa, Florida: U.S. Geological Survey Open-File Report 2003-142, 38 p., https://doi.org/10.3133/ofr03142.","productDescription":"38 p.","costCenters":[],"links":[{"id":4589,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr03-142/","linkFileType":{"id":5,"text":"html"}},{"id":179567,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db60671e","contributors":{"authors":[{"text":"Hutchinson, C. B.","contributorId":94655,"corporation":false,"usgs":true,"family":"Hutchinson","given":"C.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":243937,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":51526,"text":"ofr03267 - 2003 - Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002","interactions":[],"lastModifiedDate":"2016-09-07T15:06:13","indexId":"ofr03267","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-267","title":"Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002","docAbstract":"The Alaska Volcano Observatory (AVO), a cooperative program of the U.S. Geological Survey, the Geophysical Institute of the University of Alaska Fairbanks, and the Alaska Division of Geological and Geophysical Surveys, has maintained seismic monitoring networks at historically active volcanoes in Alaska since 1988 (Power and others, 1993; Jolly and others, 1996; Jolly and others, 2001; Dixon and others, 2002). The primary objectives of this program are the seismic monitoring of active, potentially hazardous, Alaskan volcanoes and the investigation of seismic processes associated with active volcanism. This catalog presents the basic seismic data and changes in the seismic monitoring program for the period January 1, 2002 through December 31, 2002. Appendix G contains a list of publications pertaining to seismicity of Alaskan volcanoes based on these and previously recorded data. The AVO seismic network was used to monitor twenty-four volcanoes in real time in 2002. These include Mount Wrangell, Mount Spurr, Redoubt Volcano, Iliamna Volcano, Augustine Volcano, Katmai Volcanic Group (Snowy Mountain, Mount Griggs, Mount Katmai, Novarupta, Trident Volcano, Mount Mageik, Mount Martin), Aniakchak Crater, Mount Veniaminof, Pavlof Volcano, Mount Dutton, Isanotski Peaks, Shishaldin Volcano, Fisher Caldera, Westdahl Peak, Akutan Peak, Makushin Volcano, Great Sitkin Volcano, and Kanaga Volcano (Figure 1). Monitoring highlights in 2002 include an earthquake swarm at Great Sitkin Volcano in May-June; an earthquake swarm near Snowy Mountain in July-September; low frequency (1-3 Hz) tremor and long-period events at Mount Veniaminof in September-October and in December; and continuing volcanogenic seismic swarms at Shishaldin Volcano throughout the year. Instrumentation and data acquisition highlights in 2002 were the installation of a subnetwork on Okmok Volcano, the establishment of telemetry for the Mount Veniaminof subnetwork, and the change in the data acquisition system to an EARTHWORM detection system. AVO located 7430 earthquakes during 2002 in the vicinity of the monitored volcanoes. This catalog includes: (1) a description of instruments deployed in the field and their locations; (2) a description of earthquake detection, recording, analysis, and data archival systems; (3) a description of velocity models used for earthquake locations; (4) a summary of earthquakes located in 2002; and (5) an accompanying UNIX tar-file with a summary of earthquake origin times, hypocenters, magnitudes, and location quality statistics; daily station usage statistics; and all HYPOELLIPSE files used to determine the earthquake locations in 2002.
The AVO seismic network was used to monitor twenty-four volcanoes in real time in 2002. These include Mount Wrangell, Mount Spurr, Redoubt Volcano, Iliamna Volcano, Augustine Volcano, Katmai Volcanic Group (Snowy Mountain, Mount Griggs, Mount Katmai, Novarupta, Trident Volcano, Mount Mageik, Mount Martin), Aniakchak Crater, Mount Veniaminof, Pavlof Volcano, Mount Dutton, Isanotski Peaks, Shishaldin Volcano, Fisher Caldera, Westdahl Peak, Akutan Peak, Makushin Volcano, Great Sitkin Volcano, and Kanaga Volcano (Figure 1). Monitoring highlights in 2002 include an earthquake swarm at Great Sitkin Volcano in May-June; an earthquake swarm near Snowy Mountain in July-September; low frequency (1-3 Hz) tremor and long-period events at Mount Veniaminof in September-October and in December; and continuing volcanogenic seismic swarms at Shishaldin Volcano throughout the year. Instrumentation and data acquisition highlights in 2002 were the installation of a subnetwork on Okmok Volcano, the establishment of telemetry for the Mount Veniaminof subnetwork, and the change in the data acquisition system to an EARTHWORM detection system. AVO located 7430 earthquakes during 2002 in the vicinity of the monitored volcanoes.
This catalog includes: (1) a description of instruments deployed in the field and their locations; (2) a description of earthquake detection, recording, analysis, and data archival systems; (3) a description of velocity models used for earthquake locations; (4) a summary of earthquakes located in 2002; and (5) an accompanying UNIX tar-file with a summary of earthquake origin times, hypocenters, magnitudes, and location quality statistics; daily station usage statistics; and all HYPOELLIPSE files used to determine the earthquake locations in 2002.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03267","usgsCitation":"Dixon, J.P., Stihler, S.D., Power, J.A., Tytgat, G., Moran, S.C., Sánchez, J., Estes, S., McNutt, S.R., and Paskievitch, J., 2003, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002: U.S. Geological Survey Open-File Report 2003-267, Report: 58 p.; Appendix F; Data, https://doi.org/10.3133/ofr03267.","productDescription":"Report: 58 p.; Appendix F; Data","numberOfPages":"58","temporalStart":"2002-01-01","temporalEnd":"2002-12-31","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":176326,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03267.jpg"},{"id":4546,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0267/","linkFileType":{"id":5,"text":"html"}},{"id":285716,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0267/pdf/of03-267.pdf","text":"Report","size":"7.3 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":285717,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2003/0267/pdf/appendixf.pdf","text":"Appendix F","size":"724 kB","linkFileType":{"id":1,"text":"pdf"},"description":"Appendix F"},{"id":285718,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2003/0267/2002AVOEarthquakeCatalog.tar.Z","text":"Data File","size":"13 MB","description":"Data File"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -178.90136718749997,\n 50.792047064406844\n ],\n [\n -180,\n 52\n ],\n [\n -170.33203125,\n 61.33353967329142\n ],\n [\n -153.45703125,\n 65.47650756256367\n ],\n [\n -141.15234374999997,\n 66.26685631430843\n ],\n [\n -141.15234374999997,\n 59.88893689676585\n ],\n [\n -153.8525390625,\n 53.69670647530323\n ],\n [\n -178.90136718749997,\n 50.792047064406844\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5efa8d","contributors":{"authors":[{"text":"Dixon, James P. 0000-0002-8478-9971 jpdixon@usgs.gov","orcid":"https://orcid.org/0000-0002-8478-9971","contributorId":3163,"corporation":false,"usgs":true,"family":"Dixon","given":"James","email":"jpdixon@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":243839,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stihler, Scott D.","contributorId":31373,"corporation":false,"usgs":true,"family":"Stihler","given":"Scott","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":243840,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Power, John A. 0000-0002-7233-4398 jpower@usgs.gov","orcid":"https://orcid.org/0000-0002-7233-4398","contributorId":2768,"corporation":false,"usgs":true,"family":"Power","given":"John","email":"jpower@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":243838,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tytgat, Guy","contributorId":71152,"corporation":false,"usgs":true,"family":"Tytgat","given":"Guy","email":"","affiliations":[],"preferred":false,"id":243843,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Moran, Seth C. 0000-0001-7308-9649 smoran@usgs.gov","orcid":"https://orcid.org/0000-0001-7308-9649","contributorId":548,"corporation":false,"usgs":true,"family":"Moran","given":"Seth","email":"smoran@usgs.gov","middleInitial":"C.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":243837,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sánchez, John","contributorId":72056,"corporation":false,"usgs":true,"family":"Sánchez","given":"John","affiliations":[],"preferred":false,"id":243844,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Estes, Steve","contributorId":55881,"corporation":false,"usgs":true,"family":"Estes","given":"Steve","email":"","affiliations":[],"preferred":false,"id":243842,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McNutt, Stephen R.","contributorId":38133,"corporation":false,"usgs":true,"family":"McNutt","given":"Stephen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":243841,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Paskievitch, John","contributorId":74050,"corporation":false,"usgs":true,"family":"Paskievitch","given":"John","affiliations":[],"preferred":false,"id":243845,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":51514,"text":"ofr03343 - 2003 - Tectonic Summaries for Web-served Earthquake Responses, Southeastern North America","interactions":[],"lastModifiedDate":"2012-02-02T00:11:27","indexId":"ofr03343","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-343","title":"Tectonic Summaries for Web-served Earthquake Responses, Southeastern North America","docAbstract":"This report documents the rationale and strategy used to write short summaries of the seismicity and tectonic settings of domains in southeastern North America. The summaries are used in automated responses to notable earthquakes that occur anywhere east of the Rocky Mountains in the United States or Canada. Specifically, the report describes the geologic and tectonic information, data sources, criteria, and reasoning used to determine the content and format of the summaries, for the benefit of geologists or seismologists who may someday need to revise the summaries or write others. These tectonic summaries are designed to be automatically posted on the World Wide Web as soon as an earthquake?s epicenter is determined. The summaries are part of a larger collection of summaries that is planned to cover the world.","language":"ENGLISH","doi":"10.3133/ofr03343","usgsCitation":"Wheeler, R.L., 2003, Tectonic Summaries for Web-served Earthquake Responses, Southeastern North America (Version 1.0): U.S. Geological Survey Open-File Report 2003-343, 28 p., https://doi.org/10.3133/ofr03343.","productDescription":"28 p.","costCenters":[],"links":[{"id":178558,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":4519,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-343/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adbe4b07f02db685982","contributors":{"authors":[{"text":"Wheeler, Russell L. wheeler@usgs.gov","contributorId":858,"corporation":false,"usgs":true,"family":"Wheeler","given":"Russell","email":"wheeler@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":false,"id":243783,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":51527,"text":"ofr03265 - 2003 - Grand Canyon riverbed sediment changes, experimental release of September 2000 - a sample data set","interactions":[],"lastModifiedDate":"2014-04-04T12:32:27","indexId":"ofr03265","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-265","title":"Grand Canyon riverbed sediment changes, experimental release of September 2000 - a sample data set","docAbstract":"An experimental water release from the Glen Canyon Dam into the Colorado River above Grand Canyon was conducted in September 2000 by the U.S. Bureau of Reclamation. The U.S. Geological Survey (USGS) conducted sidescan sonar surveys between Glen Canyon Dam (mile -15) and Diamond Creek (mile 220), Arizona (mile designations after Stevens, 1998) to determine the sediment characteristics of the Colorado River bed before and after the release. The first survey (R3-00-GC, 28 Aug to 5 Sep 2000) was conducted before the release when the river was at its Low Summer Steady Flow (LSSF) of 8,000 cfs. The second survey (R4-00-GC, 10 to 18 Sep 2000) was conducted immediately after the September 2000 experimental release when the average daily flow was as high as 30,800 cfs as measured below Glen Canyon Dam (Figure 2). Riverbed sediment properties interpreted from the sidescan sonar images include sediment type and sandwaves; overall changes in these properties between the two surveys were calculated.
\nSidescan sonar data from the USGS surveys were processed for segments of the Colorado River from Glen Canyon Dam (mile -15) to Phantom Ranch (mile 87.7, Figure 3). The surveys targeted pools between rapids that are part of the Grand Canyon Monitoring and Research Center (GCMRC http://www.gcmrc.gov/) physical sciences study.
\nMaps interpreted from the sidescan sonar images show the distribution of sediment types (bedrock, boulders, pebbles or cobbles, and sand) and the extent of sandwaves for each of the pre- and post-flow surveys. The changes between the two surveys were calculated with spatial arithmetric and had properties of fining, coarsening, erosion, deposition, and the appearance or disappearance of sandwaves.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr03265","usgsCitation":"Wong, F.L., Anima, R.J., Galanis, P., Codianne, J., Xia, Y., Bucciarelli, R., and Hamer, M., 2003, Grand Canyon riverbed sediment changes, experimental release of September 2000 - a sample data set: U.S. Geological Survey Open-File Report 2003-265, HTML document, https://doi.org/10.3133/ofr03265.","productDescription":"HTML document","temporalStart":"2000-09-01","temporalEnd":"2000-09-30","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":176327,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr03265.jpg"},{"id":4547,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/0265/","linkFileType":{"id":5,"text":"html"}},{"id":285707,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2003/0265/intro.html"}],"country":"United States","state":"Arizona","otherGeospatial":"Grand Canyon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.25,36.0 ], [ -112.25,37.0 ], [ -111.5,37.0 ], [ -111.5,36.0 ], [ -112.25,36.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db67250d","contributors":{"authors":[{"text":"Wong, Florence L. 0000-0002-3918-5896 fwong@usgs.gov","orcid":"https://orcid.org/0000-0002-3918-5896","contributorId":1990,"corporation":false,"usgs":true,"family":"Wong","given":"Florence","email":"fwong@usgs.gov","middleInitial":"L.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":243846,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anima, Roberto J.","contributorId":32499,"corporation":false,"usgs":true,"family":"Anima","given":"Roberto","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":243847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galanis, Peter","contributorId":82004,"corporation":false,"usgs":true,"family":"Galanis","given":"Peter","email":"","affiliations":[],"preferred":false,"id":243849,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Codianne, Jennifer","contributorId":89802,"corporation":false,"usgs":true,"family":"Codianne","given":"Jennifer","email":"","affiliations":[],"preferred":false,"id":243851,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Xia, Yu","contributorId":87453,"corporation":false,"usgs":true,"family":"Xia","given":"Yu","email":"","affiliations":[],"preferred":false,"id":243850,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bucciarelli, Randy","contributorId":91786,"corporation":false,"usgs":true,"family":"Bucciarelli","given":"Randy","email":"","affiliations":[],"preferred":false,"id":243852,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hamer, Michael","contributorId":48870,"corporation":false,"usgs":true,"family":"Hamer","given":"Michael","affiliations":[],"preferred":false,"id":243848,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":51535,"text":"ofr03207 - 2003 - Geochemical data from New Albany Shale, Kentucky: A study in metal mobility during weathering of black shales","interactions":[],"lastModifiedDate":"2022-02-16T22:39:00.793242","indexId":"ofr03207","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2003-207","title":"Geochemical data from New Albany Shale, Kentucky: A study in metal mobility during weathering of black shales","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr03207","usgsCitation":"Tuttle, M.L., Breit, G.N., and Goldhaber, M.B., 2003, Geochemical data from New Albany Shale, Kentucky: A study in metal mobility during weathering of black shales (Version 1.0): U.S. Geological Survey Open-File Report 2003-207, ii, 57 p., https://doi.org/10.3133/ofr03207.","productDescription":"ii, 57 p.","costCenters":[],"links":[{"id":176525,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":396060,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_58902.htm"},{"id":4552,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2003/ofr-03-207","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Kentucky","otherGeospatial":"New Albany Shale","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -83.9516830444336,\n 37.804358908571395\n ],\n [\n -83.91082763671875,\n 37.804358908571395\n ],\n [\n -83.91082763671875,\n 37.87404037987416\n ],\n [\n -83.9516830444336,\n 37.87404037987416\n ],\n [\n -83.9516830444336,\n 37.804358908571395\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae3e5","contributors":{"authors":[{"text":"Tuttle, Michele L.W. mtuttle@usgs.gov","contributorId":47839,"corporation":false,"usgs":true,"family":"Tuttle","given":"Michele","email":"mtuttle@usgs.gov","middleInitial":"L.W.","affiliations":[],"preferred":false,"id":243873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Breit, George N. 0000-0003-2188-6798 gbreit@usgs.gov","orcid":"https://orcid.org/0000-0003-2188-6798","contributorId":1480,"corporation":false,"usgs":true,"family":"Breit","given":"George","email":"gbreit@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":243872,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldhaber, Martin B. 0000-0002-1785-4243 mgold@usgs.gov","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":1339,"corporation":false,"usgs":true,"family":"Goldhaber","given":"Martin","email":"mgold@usgs.gov","middleInitial":"B.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":243871,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":50707,"text":"ofr02421 - 2003 - Archive of boomer seismic reflection data: Collected during USGS Cruise 97KEY01, upper and middle Florida Keys, 12 October - 1 November, 1997","interactions":[],"lastModifiedDate":"2022-07-13T20:46:16.678995","indexId":"ofr02421","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-421","title":"Archive of boomer seismic reflection data: Collected during USGS Cruise 97KEY01, upper and middle Florida Keys, 12 October - 1 November, 1997","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr02421","usgsCitation":"Peery, G.M., Lidz, B.H., and Wiese, D.S., 2003, Archive of boomer seismic reflection data: Collected during USGS Cruise 97KEY01, upper and middle Florida Keys, 12 October - 1 November, 1997: U.S. Geological Survey Open-File Report 2002-421, HTML Document: 1 CD-ROM; 1 DVD-ROM, https://doi.org/10.3133/ofr02421.","productDescription":"HTML Document: 1 CD-ROM; 1 DVD-ROM","costCenters":[],"links":[{"id":176514,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":403690,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_55001.htm","linkFileType":{"id":5,"text":"html"}},{"id":4202,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/of02-421/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Florida","otherGeospatial":"Florida Keys","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.3917,\n 24.4\n ],\n [\n -80.2667,\n 24.4\n ],\n [\n -80.2667,\n 25.1667\n ],\n [\n -81.3917,\n 25.1667\n ],\n [\n -81.3917,\n 24.4\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac5e4b07f02db679dcd","contributors":{"authors":[{"text":"Peery, Gina M.","contributorId":36621,"corporation":false,"usgs":true,"family":"Peery","given":"Gina","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":242123,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lidz, Barbara H. blidz@usgs.gov","contributorId":2475,"corporation":false,"usgs":true,"family":"Lidz","given":"Barbara","email":"blidz@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":242121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wiese, Dana S. dwiese@usgs.gov","contributorId":2476,"corporation":false,"usgs":true,"family":"Wiese","given":"Dana","email":"dwiese@usgs.gov","middleInitial":"S.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":242122,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70156743,"text":"70156743 - 2003 - The National Map: from geography to mapping and back again","interactions":[],"lastModifiedDate":"2015-08-27T11:21:03","indexId":"70156743","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3052,"text":"Photogrammetric Engineering and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"The National Map: from geography to mapping and back again","docAbstract":"When the means of production for national base mapping were capital intensive, required large production facilities, and had ill-defined markets, Federal Government mapping agencies were the primary providers of the spatial data needed for economic development, environmental management, and national defense. With desktop geographic information systems now ubiquitous, source data available as a commodity from private industry, and the realization that many complex problems faced by society need far more and different kinds of spatial data for their solutions, national mapping organizations must realign their business strategies to meet growing demand and anticipate the needs of a rapidly changing geographic information environment. The National Map of the United States builds on a sound historic foundation of describing and monitoring the land surface and adds a focused effort to produce improved understanding, modeling, and prediction of land-surface change. These added dimensions bring to bear a broader spectrum of geographic science to address extant and emerging issues. Within the overarching construct of The National Map, the U.S. Geological Survey (USGS) is making a transition from data collector to guarantor of national data completeness; from producing paper maps to supporting an online, seamless, integrated database; and from simply describing the Nation’s landscape to linking these descriptions with increased scientific understanding. Implementing the full spectrum of geographic science addresses a myriad of public policy issues, including land and natural resource management, recreation, urban growth, human health, and emergency planning, response, and recovery. Neither these issues nor the science and technologies needed to deal with them are static. A robust research agenda is needed to understand these changes and realize The National Map vision. Initial successes have been achieved. These accomplishments demonstrate the utility of The National Map to the Nation and give confidence in evolving its future applications.
","language":"English","publisher":"American Society for Photogrammetry and Remote Sensing","doi":"10.14358/PERS.69.10.1109","usgsCitation":"Kelmelis, J.A., DeMulder, M.L., Ogrosky, C.E., Van Driel, J.N., and Ryan, B.J., 2003, The National Map: from geography to mapping and back again: Photogrammetric Engineering and Remote Sensing, v. 69, no. 10, p. 1109-1118, https://doi.org/10.14358/PERS.69.10.1109.","productDescription":"10 p.","startPage":"1109","endPage":"1118","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":478340,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14358/pers.69.10.1109","text":"Publisher Index Page"},{"id":307613,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e034c3e4b0f42e3d040e50","contributors":{"authors":[{"text":"Kelmelis, John A.","contributorId":40893,"corporation":false,"usgs":true,"family":"Kelmelis","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":570332,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DeMulder, Mark L. mdemulder@usgs.gov","contributorId":3748,"corporation":false,"usgs":true,"family":"DeMulder","given":"Mark","email":"mdemulder@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":570333,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ogrosky, Charles E.","contributorId":28477,"corporation":false,"usgs":true,"family":"Ogrosky","given":"Charles","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":570334,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van Driel, J. Nicholas","contributorId":80688,"corporation":false,"usgs":true,"family":"Van Driel","given":"J.","email":"","middleInitial":"Nicholas","affiliations":[],"preferred":false,"id":570335,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ryan, Barbara J.","contributorId":62989,"corporation":false,"usgs":true,"family":"Ryan","given":"Barbara","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":570336,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":69662,"text":"i2788 - 2003 - Geologic map of the Big Delta B-2 quadrangle, east-central Alaska","interactions":[],"lastModifiedDate":"2018-10-22T11:31:43","indexId":"i2788","displayToPublicDate":"2003-10-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2788","title":"Geologic map of the Big Delta B-2 quadrangle, east-central Alaska","docAbstract":" New 1:63,360-scale geologic mapping of the Big Delta B-2 quadrangle provides important data on the structural setting and age of geologic units, as well as on the timing of gold mineralization plutonism within the Yukon-Tanana Upland of east-central Alaska. Gold exploration has remained active throughout the region in response to the discovery of the Pogo gold deposit, which lies within the northwestern part of the quadrangle near the south bank of the Goodpaster River. Geologic mapping and associated geochronological and geochemical studies by the U.S. Geological Survey (USGS) and the Alaska Department of Natural Resources, Division of Mining and Water Management, provide baseline data to help understand the regional geologic framework. Teck Cominco Limited geologists have provided the geologic mapping for the area that overlies the Pogo gold deposit as well as logistical support, which has lead to a much improved and informative product.\r\n The Yukon-Tanana Upland lies within the Tintina province in Alaska and consists of Paleozoic and possibly older(?) supracrustal rocks intruded by Paleozoic (Devonian to Mississippian) and Cretaceous plutons. The oldest rocks in the Big Delta B-2 quadrangle are Paleozoic gneisses of both plutonic and sedimentary origin. Paleozoic deformation, potentially associated with plutonism, was obscured by intense Mesozoic deformation and metamorphism. At least some of the rocks in the quadrangle underwent tectonism during the Middle Jurassic (about 188 Ma), and were subsequently deformed in an Early Cretaceous contractional event between about 130 and 116 Ma. New U-Pb SHRIMP data presented here on zircons from the Paleozoic biotite gneisses record inherited cores that range from 363 Ma to about 2,130 Ma and have rims of euhedral Early Cretaceous metamorphic overgrowths (116 +/- 4 Ma), interpreted to record recrystallization during Cretaceous west-northwest-directed thrusting and folding. U-Pb SHRIMP dating of monazite from a Paleozoic gneiss sample yields an age of 112 +/- 2 Ma; the monazite presumably grew during the waning stages of the intense regional Cretaceous ductile deformation. The Cretaceous ductile deformation was followed closely by granite plutonism and gold mineralization. The main pulse of gold mineralization is temporally and spatially associated with the Cretaceous granitic dikes and plutons and occurred during regional uplift and extension.","language":"ENGLISH","doi":"10.3133/i2788","isbn":"0607900695","usgsCitation":"Day, W.C., Aleinikoff, J.N., Roberts, P., Smith, M., Gamble, B.M., Henning, M.W., Gough, L.P., and Morath, L.C., 2003, Geologic map of the Big Delta B-2 quadrangle, east-central Alaska: U.S. Geological Survey IMAP 2788, 1 map : col. ; 44 x 39 cm., on sheet 84 x 99 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/i2788.","productDescription":"1 map : col. ; 44 x 39 cm., on sheet 84 x 99 cm., folded in envelope 30 x 24 cm.","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":187456,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110404,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_54573.htm","linkFileType":{"id":5,"text":"html"},"description":"54573"},{"id":6334,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/2003/i-2788/","linkFileType":{"id":5,"text":"html"}}],"scale":"63360","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -145,64.25 ], [ -145,64.5 ], [ -144.5,64.5 ], [ -144.5,64.25 ], [ -145,64.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b0be4b07f02db69d972","contributors":{"authors":[{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":280829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":280830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, Paul","contributorId":54300,"corporation":false,"usgs":true,"family":"Roberts","given":"Paul","email":"","affiliations":[],"preferred":false,"id":280833,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, Moira","contributorId":17313,"corporation":false,"usgs":true,"family":"Smith","given":"Moira","affiliations":[],"preferred":false,"id":280831,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gamble, Bruce M. bgamble@usgs.gov","contributorId":560,"corporation":false,"usgs":true,"family":"Gamble","given":"Bruce","email":"bgamble@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":280827,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Henning, Mitchell W.","contributorId":48641,"corporation":false,"usgs":true,"family":"Henning","given":"Mitchell","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":280832,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gough, Larry P. lgough@usgs.gov","contributorId":1230,"corporation":false,"usgs":true,"family":"Gough","given":"Larry","email":"lgough@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":280828,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Morath, Laurie C.","contributorId":99225,"corporation":false,"usgs":true,"family":"Morath","given":"Laurie","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":280834,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ]}