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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 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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An isostatic gravity map of the Death Valley groundwater model area was prepared from over 40,0000 gravity stations as part of an interagency effort by the U.S. Geological Survey and the U.S. Department of Energy to help characterize the geology and hydrology of southwest Nevada and parts of California.
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Crystalline basement in central California extends westward from theexposed Sierra Nevada beneath the sedimentary fill of the GreatValley and under the eastern edge of the Coast Ranges at mid-crustaldepth. The surface of this basement is defined from three types ofcontrol: in the Sierra Nevada from the topography itself, beneaththe eastern two thirds of the Great Valley in considerable detailfrom numerous wells drilled for oil and gas, and beneath thewestern San Joaquin Valley in less detail from seismic reflectionand refraction profiles. Together, these data demonstrate that thesurface of crystalline rock is continuous from the exposed rock inthe mountains to the top of high-velocity rock buried deep beneaththe...
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The structure of and depth to the floor of the Mississippi Valley andRough Creel Grabens and surrounding regionswere interpreted from aeromagnetic data.This cover contains the depth contours for the region within thisstudy area and was clipped from the larger cover.This cover was not plotted in the Wabash Valley map series, but isincluded for those users who are interested in comparing the depthto basement from geologic data (bcontours and bfaults) to the depthto magnetic rocks (usually basement) from geophysical data.Depth units in this cover arekilometers below sea level, whereas depth units in bcontours are inthousands of feet below sea level.
Tags: 1100 - Geology, 1101 - General, 17025 = Clay, 17047 = Edwards, 17055 = Franklin, All tags...
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A depth to basement map of the Death Valley groundwater model area was prepared using over 40,0000 gravity stations as part of an interagency effort by the U.S. Geological Survey and the U.S. Department of Energy to help characterize the geology and hydrology of southwest Nevada and parts of California.
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This is a polygon coverage of the structure contours of the Calicosequence boundary in the Kaiparowits Plateau. Sequence boundaryelevations are based on 166 drill sites. The Calico sequenceboundary occurs from 50-100 ft below the John Henry Member,therefore an inferred elevation of the sequence boundary was usedat numerous locations along the outcrop where the John Henry Memberwas mapped.The outside polygon defines the base of the coal-bearing John HenryMember of the Straight Cliffs Formation east of 112 degrees oflongitude. The area within this polygon includes parts of thecoal-bearing John Henry Member where the entire section may not berepresented due to erosion. The northern boundary is delineated bythe Paunsaugunt...
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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 cover contains structure contours of the elevations of theunconformity at theCambrian-Precambrian boundary. These data were contributed byGlenn Bear of Indiana University as part of the work onhis doctoral thesis. The southern part of the map was produced byJames Drahovzal of the Kentucky Geological Survey and merged withBear's map of the rest of the map area and beyond. Public andproprietary seismic reflection and well data were used to define thestructure. Units are in thousands of feet below sea level.A prominent east-west structure in the southern half of the maparea is the western end of the Rough Creek Graben. At its deepestpoint the unconformity is more than 30,000 ft(9,100 m) below sea level. Faulted...
Tags: 1100 - Geology, 1102 - Structure Contours, 17025 = Clay, 17047 = Edwards, 17055 = Franklin, All tags...
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This map shows the subcrop pattern of the Mesozoic rock units present at the top Mesozoic unconformity (also commonly referred to as the base Tertiary unconformity) in Cook Inlet basin, Alaska. The subcrop is projected onto the top Mesozoic unconformity depth surface of Cook Inlet basin, Alaska, published by Shellenbaum and others (2010). Publicly available geologic and geophysical data from multiple sources were collected, interpreted, and integrated into the subcrop map. Formation picks at the top Mesozoic unconformity were determined for 109 wells. Mesozoic horizons from two regional marine two-dimensional (2-D) seismic datasets (approximately 3,300 miles) were interpreted. Eight map units were established for...
Tags: Anchorage, Anchorage Quadrangle, Bedrock Geologic Map, Bedrock Geology, Bibliography, All tags...
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This cover contains structure contours of the elevations of theunconformity at the Cambrian-Precambrian boundary.These data were contributed byGlenn Bear of Indiana University as part of the work onhis doctoral thesis. The southern part of the map was produced byJames Drahovzal of the Kentucky Geological Survey and merged withBear's map of the rest of the map area and beyond. Use of public andproprietary seismicreflection and well data were used to define thestructure. Units are in thousands of feet below sea level.A prominent east-west structure in the southern half of the maparea is the western end of the Rough Creek Graben. At its deepestpoint the unconformity is more than 30,000 ft(9,100 m) below sea level....
Tags: 1100 - Geology, 1102 - Structure Contours, 17025 = Clay, 17047 = Edwards, 17055 = Franklin, All tags...


    map background search result map search result map Structure contours on top of the Trout Creek Sandstone, Yampa coal field, CO Isostatic Gravity Map of the Death Valley Ground-Water Model Area, Nevada and California Map Showing Depth to Pre-Cenozoic Basement in the Death Valley Ground-Water Model Area, Nevada and California Gravity map and data of the eastern half of the Big Bear Lake100,000 scale quadrangle, California and analysis of the depths ofseveral basins. Geologic map of Van Bremmer Park Quadrangle, Colfax County, New Mexico Geologic map of the Vermejo Park quadrangle, Colfax County, New Mexico, and Las Animas County, Colorado The Surface of Crystalline Basement, Great Valley and Sierra Nevada, California: A Digital Map Database Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Structure contours on Cambrian-Precambrian unconformity Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Structure contours on Cambrian-Precambrian unconformity Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Depth to magnetic rocks Structure contours of the Calico sequence boundary in the Kaiparowits Plateau Point source data for coal in the John Henry Member of the Straight Cliffs Formation in the Kaiparowits Plateau study area Top Mesozoic unconformity subcrop map, Cook Inlet basin, Alaska Geologic map of Van Bremmer Park Quadrangle, Colfax County, New Mexico Geologic map of the Vermejo Park quadrangle, Colfax County, New Mexico, and Las Animas County, Colorado Gravity map and data of the eastern half of the Big Bear Lake100,000 scale quadrangle, California and analysis of the depths ofseveral basins. Structure contours on top of the Trout Creek Sandstone, Yampa coal field, CO Point source data for coal in the John Henry Member of the Straight Cliffs Formation in the Kaiparowits Plateau study area Structure contours of the Calico sequence boundary in the Kaiparowits Plateau Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Structure contours on Cambrian-Precambrian unconformity Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Structure contours on Cambrian-Precambrian unconformity Isostatic Gravity Map of the Death Valley Ground-Water Model Area, Nevada and California Map Showing Depth to Pre-Cenozoic Basement in the Death Valley Ground-Water Model Area, Nevada and California Top Mesozoic unconformity subcrop map, Cook Inlet basin, Alaska The Surface of Crystalline Basement, Great Valley and Sierra Nevada, California: A Digital Map Database Seismotectonic maps in the vicinity of the lower Wabash Valley,Illinois, Indiana, and Kentucky - Digital Spatial Database:Depth to magnetic rocks