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This cover contains the outlines of recent landslides formed prior to Hurricane Mitch in October - November 1998. Jeffrey Coe and Robert Bucknam mapped the landslides. Most landslides were mapped using 1:40,000-scale aerial photographs and a Kern PG-2 photogrammetric plotter at 4X and 8X magnifications. The photographs were scaled and oriented to the topographic base map using prominent topographic landmarks and plotted on a transparent polyester overlay registered to the topographic base maps at scales of 1:50,000 or 1:25,000. In areas where landslides were very sparse, the aerial photographs were scanned with a mirror stereoscope at 4X magnification, and landslide locations were transferred to base maps by inspection....
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This is a point coverage that contains data for coal and otherstratigraphic horizons in the John Henry Member of the StraightCliffs Formation (Upper Cretaceous) east of 112 degrees oflongitude in the Kaiparowits Plateau. The item map# is the numberon the index map (Figure A, Plate 1) that refers to a record in adata table (Appendix 1) in Hettinger and others (1996). Bufferswere drawn at a three-mile distance from data points in thiscoverage to create the reliability coverage. This coverage alsoincludes arcs representing lines of cross section shown in Figs. B,C, D and E, Plate 1 (Hettinger and others, 1996).
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Geologic map of the Lookout Ridge quadrangle, compiled from previously published and unpublished sources. This map is part of a collection of digital maps of northern Alaska, that span the transition from the Brooks Range to the Arctic coastal plain.
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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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Map, report, and geospatial data on the geology of the northeastern part of the 1:250,000 scale Dillingham quadrangle, Alaska. Includes Ar40/39 radiometric ages, geologic unit descriptions, and correlation of map units.
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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 geologic map summarizes all available geologic information for the Tetilla Peak quadrangle located immediately southwest of Santa Fe, New Mexico. The geologic map consists of new polygon (geologic map units) and line (contact, fault, fold axis, dike, flow contact, hachure) data, as well as point data (locations for structural measurements, geochemical and geochronologic data, geophysical soundings, and water wells). The map database has been generated at 1:24,000 scale, and provides significant new geologic information for an area of the southern Cerros del Rio volcanic field, which sits astride the boundary of the Espanola and Santo Domingo basins of the Rio Grande rift.The quadrangle includes the...
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ORWA26_500UTM is a digital bathymetric surface grid of the seafloor offthe coast of Washington and Oregon. Grid cell spacing is 500m and theprojection is UTM Zone 10.The surface was produced by gridding National Ocean Service (NOS)Hydrographic Surveys collected between 1926 and 1974 (primarily1926 to 1930). This work includes the most recent bathymetric dataavailable on a regional scale over the inner to outer continental shelfoff the coast of Washington and Oregon. The results represent thebest available estimate of the seafloor morphology for the time periodcirca 1926.
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This data set maps and describes the geology of the Cucamonga Peak 7.5' quadrangle,San Bernardino County, California. Created using Environmental Systems ResearchInstitute's ARC/INFO software, the database consists of the following items: (1) amap coverage containing geologic contacts and units, (2) a coverage containingsite-specific structural data, (3) a coverage containing geologic-unit label leadersand their associated attribute tables for geologic units (polygons), contacts(arcs), and site-specific data (points). In addition, the data set includes thefollowing graphic and text products: (1) A PostScript graphic plot-file containingthe geologic map, topography, cultural data, a Correlation of Map Units (CMU)diagram,...
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This data set maps and describes the geology of the Steele Peak 7.5' quadrangle, Riverside County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) a coverage containing structural data, (3) a coverage containing geologic unit annotation and leaders, and (4) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) a postscript graphic plot-file containing the geologic map, topography, cultural data, a Correlation of Map Units (CMU) diagram, a Description...
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This data set maps and describes the geology of the Sunnymead 7.5' quadrangle, Riverside County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) a coverage containing structural data, (3) a coverage containing geologic unit annotation and leaders, and (4) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) a postscript graphic plot-file containing the geologic map, topography, cultural data, a Correlation of Map Units (CMU) diagram, a Description...
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This data set maps and describes the geology of the San Bernardino Wash 7.5 minutequadrangle, Riverside County, southern California. The quadrangle, situated inJoshua Tree National Park in the eastern Transverse Ranges physiographic andstructural province, encompasses parts of the northwestern Eagle Mountains,east-central Pinto Basin, and eastern Pinto Mountains.The quadrangle is underlain by a basement terrane comprising metamorphosedProterozoic strata, Mesozoic plutonic rocks, and Jurassic and Mesozoic and (or)Cenozoic hypabyssal dikes. The basement terrane is capped by a widespread Tertiaryerosion surface preserved in remnants in the Pinto and Eagle Mountains and buriedbeneath Cenozoic deposits in Pinto Basin....
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This data set maps and describes the geology of the Perris 7.5' quadrangle, Riverside County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) a coverage containing structural data, (3) a coverage containing geologic unit annotation and leaders, and (4) attribute tables for geologic units (polygons), contacts (arcs), and site-specific data (points). In addition, the data set includes the following graphic and text products: (1) a postscript graphic plot-file containing the geologic map, topography, cultural data, a Correlation of Map Units (CMU) diagram, a Description...
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The Elsinore quadrangle is located in the northern part of the Peninsular Ranges Province and includes parts of two structural blocks, or structural subdivisions of the province. The active Elsinore Fault Zone diagonally crosses the southwest corner of the quadrangle, and is a major element of the right-lateral strike-slip San Andreas Fault system. The Elsinore Fault Zone separates the Santa Ana Mountains block west of the fault zone from the Perris block to the east. Internally both blocks are relatively stable and within the quadrangle are characterized by the presence of widespread erosional surfaces of low relief.Within the quadrangle the Santa Ana Mountains block is underlain by undifferentiated granitic rocks...
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The Raton basin is a large asymmetric syncline (2500 mi2 area) that extends from Huerfano Park, Colorado to Cimarron, New Mexico. As used here, the basin is defined by the limits of the outcrop of the Trinidad Sandstone. The Cretaceous and Tertiary rocks are sharply flexed to form hogbacks along the western margin of the basin on the east flank of the Sangre de Cristo Mountains. These rocks assume more gentle dips along the other margins of the Raton basin and are highly dissected. The Late Cretaceous in the Raton basin was a period of emergence of land and retreat of the Cretaceous epeiric sea. The coastline advanced eastward across New Mexico, as broad prograding deltaic and barrier coastal plains were formed...
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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.


map background search result map search result map Preliminary gravity inversion model of Frenchman Flat Basin, Nevada Test Site, Nevada Geology and mineral deposits of the Keweenaw Peninsula and vicinity, Michigan Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska Geologic map of the Lookout Ridge quadrangle, Alaska Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Generalized Thermal Maturity Map of Alaska Geologic map of the Tetilla Peak quadrangle, Santa Fe and Sandoval Counties, New Mexico ORWA26_500UTM: Oregon/Washington 500 meter, 1926 Bathymetry Grid;UTM Projection Coal-Bearing Regions and Structural Sedimentary Basins ofChina and Adjacent Seas: Major coal mine locations Geologic Map of the Cucamonga Peak 7.5' quadrangle, San Bernardino County, California Older landslides in Tactic quadrangle, Guatemala Geologic Map of the Steele Peak 7.5' Quadrangle, Riverside County, California Geologic Map of the Sunnymead 7.5' Quadrangle, Riverside County, California Geologic map and digital database of the San Bernardino Wash7.5 minute quadrangle, Riverside County, California Preliminary geologic Map of the Perris 7.5' Quadrangle, Riverside County, California Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California Geologic map of the Vermejo Park quadrangle, Colfax County, New Mexico, and Las Animas County, Colorado Point source data for coal in the John Henry Member of the Straight Cliffs Formation in the Kaiparowits Plateau study area Geologic map of the Tetilla Peak quadrangle, Santa Fe and Sandoval Counties, New Mexico Geologic map of the Vermejo Park quadrangle, Colfax County, New Mexico, and Las Animas County, Colorado Preliminary geologic map of the Elsinore 7.5' quadrangle, Riverside County, California Geologic Map of the Steele Peak 7.5' Quadrangle, Riverside County, California Geologic map and digital database of the San Bernardino Wash7.5 minute quadrangle, Riverside County, California Preliminary geologic Map of the Perris 7.5' Quadrangle, Riverside County, California Geologic Map of the Sunnymead 7.5' Quadrangle, Riverside County, California Geologic Map of the Cucamonga Peak 7.5' quadrangle, San Bernardino County, California Older landslides in Tactic quadrangle, Guatemala Preliminary gravity inversion model of Frenchman Flat Basin, Nevada Test Site, Nevada Preliminary geologic map of the northeast Dillingham quadrangle (D-1, D-2, C-1, and C-2), Alaska Point source data for coal in the John Henry Member of the Straight Cliffs Formation in the Kaiparowits Plateau study area Geology and mineral deposits of the Keweenaw Peninsula and vicinity, Michigan Geologic Map of the eastern part of the Challis National Forest and vicinity, Idaho Geologic map of the Lookout Ridge quadrangle, Alaska ORWA26_500UTM: Oregon/Washington 500 meter, 1926 Bathymetry Grid;UTM Projection Generalized Thermal Maturity Map of Alaska Coal-Bearing Regions and Structural Sedimentary Basins ofChina and Adjacent Seas: Major coal mine locations