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The paper version of the Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho was compiled by Anna Wilson and Betty Skipp in 1994. The geology was compiled on a 1:250,000 scale topographic base map. TechniGraphic System, Inc. of Fort Collins Colorado digitized this map under contract for N.Shock. G.Green edited and prepared the digital version for publication as a GIS database. The digital geologic map database can be queried in many ways to produce a variety of geologic maps.
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Alska is a complex amalgamation of tectonic blocks with diverse histories. Sedimentary basins that are formed on these blocks both before amalgamation and as a result of collisions between them record the tectonic history of this complex region. Thermal-maturity data-indicators of maximum burial temperatures-provide important constraints both on basin evolution and on terrane amalgamation. To help elucidate these relations, and to provide constraints for hydrocarbon assessments, the U.S. Geological survey (USGS) has compilied thermal-maturity data from Alaska for many decades. This report is a digital release of our current understanding of thermal-maturity patters in Alaska.
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This digital map database, which is compiled from previouslyunpublished and open-filed U.S. Geol. Survey reports (Wesling andHelley, 1989), represents the general distribution and identity ofQuaternary deposits in eight 7.5 minute quadrangles in the southernSan Francisco Bay region, California.
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This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (cdbegeo.txt or cdbegeo.ps), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.
This report describes the contents of a digital dataset which consistsof four ARC/INFO Export format files. The dataset includes a digitalrepresentation of the Montana state geologic map.
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The paper version of The geology of the Challis 1�x2� quadrangle, wascompiled by Fred Fisher, Dave McIntyre and Kate Johnson in 1992. Thegeology was compiled on a 1:250,000 scale topographic base map.TechniGraphic System, Inc. of Fort Collins Colorado digitized this mapunder contract for N.Shock. G.Green edited and prepared the Challisdigital version for publication as a geographic information systemdatabase. The digital geologic map database can be queried in manyways to produce a variety of geologic maps.
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This digital map database represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text files (hpk_geo.txt, hpk_geo.pdf or hpk_geo.ps), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.
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This two coverage dataset makes up a 1:25,000 scalesurficial geologic map along the Castle Mountain faultbetween Houston and Hatcher Pass Road in southcentralAlaska. The map area lies entirely within the Anchoragequadrangle and within the Matanuska-Susitna Borough. Theprimary purpose of the map is to delineate the locationof the Castle Mountain fault and other active orpotentially active faults in the area. This map liesbetween two other maps along the Castle Mountain faultby Detterman and others (1974, 1976).
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This Open-File report is a digital physiographic map database.This physiographic map of the Grand Canyon is modified fromprevious versions by Billingsley and Hendricks (1989), andBillingsley and others (1997). The boundary is drawn approximatelyalong the topographic rim of the Grand Canyon and its tributarycanyons between Lees Ferry and Lake Mead (shown in red). Severalisolated small mesas, buttes, and plateaus are within this area,which overall encompasses about 2,600 square miles.The Grand Canyon lies within the southwestern part of the Colorado Plateaus of northern Arizona between Lees Ferry, Colorado River Mile 0, and Lake Mead, Colorado River Mile 277. Limestone rocks of the Kaibab Formation form most of the...
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The paper version of The geology of the Challis 1°x2° quadrangle, was compiled by Fred Fisher, Dave McIntyre and Kate Johnson in 1992. The geology was compiled on a 1:250,000 scale topographic base map. TechniGraphic System, Inc. of Fort Collins Colorado digitized this map under contract for N.Shock. G.Green edited and prepared the Challis digital version for publication as a geographic information system database. The digital geologic map database can be queried in many ways to produce a variety of geologic maps.
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The paper version of the Geologic map of outcrop areas of sedimentaryunits in the eastern part of the Hailey 1�x2� Quadrangle and part of thesouthern part of the Challis 1�x2� Quadrangle, south-central Idaho wascompiled by Paul Link and others in 1995. The plate was compiled on a1:100,000 scale topographic base map. TechniGraphic System, Inc. ofFort Collins Colorado digitized this map under contract for N.Shock.G.Green edited and prepared the digital version for publication as aGIS database. The digital geologic map database can be queried inmany ways to produce a variety of geologic maps.
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This digital map database represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (egh_geo.txt, egh_geo.pdf or egh_geo.ps), it provides current information on the geologic structure and stratigraphy of the area covered. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.
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USGS Open-File Report 99-362 are digital files used tocreate the published paper map, USGS OFR 99-362. The1:63,360 scale map shows the bedrock geology of a specialstudy area within the Chugach National Forest, Alaska.Digital files include ARC/Info coverages in export format ofgeology, structural data, and annotation, and a PDF file ofthe Open-File Report.
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Yucca Mountain, Nye County, Nevada, has been identified as a potential site for underground storage of high-level radioactive nuclear waste. Detailed bedrock geologic maps form an integral part of the site characterization program by providing the fundamental framework and structural setting for the area in and adjacent to the site of the potential repository.


    map background search result map search result map Geologic Map of the Challis 1°x2° Quadrangle, Idaho Geologic map of outcrop areas of sedimentary units in the easternpart of the Hailey 1�x2� Quadrangle and part of the southern partof the Challis 1�x2� Quadrangle, south-central Idaho Geologic Map of the Challis 1�x2� Quadrangle, Idaho Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Generalized Thermal Maturity Map of Alaska Bedrock Geologic Map of the Yucca Mountain Area, Nye County, Nevada Surficial geologic map along the Castle Mountain faultbetween Houston and Hatcher Pass Road, Alaska Geology of the Cordelia and the northern part of the Benicia 7.5 minute quadrangles, California: A digital map database Physiographic Rim of The Grand Canyon, Arizona: A Digital Database Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database Geologic Map of the East of Grotto Hills Quadrangle, California: A Digital Database Preliminary geologic map of the Chugach National Forestspecial study area, Alaska Geologic Map of the East of Grotto Hills Quadrangle, California: A Digital Database Geologic Map of the Hart Peak Quadrangle, California and Nevada: A Digital Database Bedrock Geologic Map of the Yucca Mountain Area, Nye County, Nevada Geology of the Cordelia and the northern part of the Benicia 7.5 minute quadrangles, California: A digital map database Preliminary geologic map of the Chugach National Forestspecial study area, Alaska Geologic map of outcrop areas of sedimentary units in the easternpart of the Hailey 1�x2� Quadrangle and part of the southern partof the Challis 1�x2� Quadrangle, south-central Idaho Geologic Map of the Challis 1°x2° Quadrangle, Idaho Geologic Map of the Challis 1�x2� Quadrangle, Idaho Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Physiographic Rim of The Grand Canyon, Arizona: A Digital Database Generalized Thermal Maturity Map of Alaska