Filters: Tags: structure contour (X) > Types: OGC WFS Layer (X)

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Structure Contours from Top of Sparta Aquifer from Figure 2, 1996, from Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996 (Brantly, Seanor, and McCoy, 2002) This report describes the thickness and areal extent of the Sparta aquifer, identifies sands within the fresh-water extent of the aquifer, and presents data and a map that illustrate the generalized potentiometric surface (water levels) during October 1996. The report includes a detailed geophysical log, structure contour maps, hydrogeologic sections, and hydrographs of water levels in selected wells. The potentiometric surface-map can be used for determining direction of ground-water flow, hydraulic gradients, and the effects of withdrawals on the aquifer. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Louisiana, Mississippi Embayment, Sparta aquifer, altitude, downdip limit, All tags... groundwater, structure contour, western extent, Fewer tags Structure Contours of the Base of the Sparta Sand from Plate 3, 1968, from Hydrologic significance of the lithofacies of the Sparta Sand in Arkansas, Louisiana, Mississippi, and Texas (Payne, 1968) The study of the geohydrology of the Sparta Sand is the initial phase in the investigation of the geohydrology of the Claiborne Group. The thicker sections of the Sparta Sand lie along the axes of the Mississippi embayment and Desha basin. The area of maximum thickness, 1,100-1,200 feet, is in Claiborne and Warren Counties, Miss., and Madison Parish, La. Local thickening or thinning over some structures indicates structural movement during Sparta time. A sand-percentage map prepared from data derived from interpretation of electric logs indicates that the Sparta Sand was deposited as a delta-fluvial plain complex in Arkansas, Louisiana, and Mississippi. This complex shows a text-book example of a well-developed... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Louisiana, Mississippi, Mississippi Embayment, Sparta Sand, All tags... base, groundwater, structure contour, Fewer tags Collection of digital structure contour maps from previously published USGS studies Under the direction and funding of the National Cooperative Geologic Mapping Program (NCGMP) with guidance and encouragement from the United States Geological Survey (USGS), there has been a decadal strategic plan in place to call for geologic mapping across the nation. This call has been increasing the need for digital data that has not yet been made available. With such a demand, physical data is being re-released as vector-based, GIS operable data, which is viable as a corporate asset to the USGS. This collection of reports is part of the compilation and synthesis efforts hampered by the distributed nature of subsurface investigations at the USGS and a general lack of cataloging and archiving of 3-D geological... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Almond Formation, Arizona, Baxter Shale, Castlegate Sandstone, Colorado, All tags... Colorado Shale, Cutler Group, Dakota Formation, Dakota Sandstone, Exshaw Black Shale, Federal Geographic Data Committee, Fox Hills Sandstone, GeMS, Geologic Mapping Schema, Geomorphology, Glorieta Sandstone, Goose Egg Formation, Kinderhook Black Shale, Leadville Limestone, Lewis Shale, Minnelusa Formation, Montana, Morrison Formation, Mowry Shale, National Cooperative Geologic Map Program, National Geologic Synthesis Project, New Mexico, North Dakota, Paradox Basin, Permian, Piceance Basin, Piceance Creek Basin, Pierre Shale, Powder River Basin, Rocky Mountains, Rollins Sandstone, San Andres Limestone, San Juan Basin, San Juan Mountains, San Juan Volcanics, Sedimentology, South Dakota, Stratigraphy, Structural Geology, Sundance Formation, Sundance Unconformity, Tensleep Sandstone, Trout Creek Sandstone, USGS Science Data Catalog (SDC), Uinta Basin, Utah, Wasatch Formation, Williston Basin, Wyoming, boundaries, chronostratigraphy, elevation, elevation, estimated thickness, geoscientificInformation, isopach contour, stratigraphy, structure contour, thickness contour, vector, Fewer tags Structure Contours from Bottom of Sparta Aquifer from Figure 3, 1996, from Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996 (Brantly, Seanor, and McCoy, 2002) This report describes the thickness and areal extent of the Sparta aquifer, identifies sands within the fresh-water extent of the aquifer, and presents data and a map that illustrate the generalized potentiometric surface (water levels) during October 1996. The report includes a detailed geophysical log, structure contour maps, hydrogeologic sections, and hydrographs of water levels in selected wells. The potentiometric surface-map can be used for determining direction of ground-water flow, hydraulic gradients, and the effects of withdrawals on the aquifer. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Louisiana, Mississippi Embayment, Sparta aquifer, altitude, downdip limit, All tags... groundwater, structure contour, western extent, Fewer tags