Skip to main content
USGS - science for a changing world
Advanced Search

Filters: Tags: 51027 (X)

5 results (61ms)   

View Results as: JSON ATOM CSV
thumbnail
This dataset is a polygon coverage of the thickness of the overburden of the Pocahontas No. 3 coal bed, in feet. It was produced by importing 1:100,000 (30-minute) and 1:24,000 scale (7.5-minute) digital elevation models (DEM) into ARC, and merging the lattices into one. The structure elevation grid for the Pocahontas No. 3 coal bed was subtracted from the surface elevation grid, creating overburden thickness. This grid was contoured within the known extent of the Pocahontas No. 3 coal bed into 200, 500, 1000, 2000, and 3000 foot lines. This vector file was imported to ARC. Polygon attributes include a code for the USGS overburden category (Coal Resource Classification of the U.S. Geological Survey, USGS, Circular...
Categories: Web Site; Tags: 51027 = Buchanan, 51051 = Dickenson, 51167 = Russell, 51169 = Scott, 51185 = Tazewell, All tags...
thumbnail
This dataset is a polygon coverage of minable thickness for the Pond Creek coal zone in Kentucky, West Virginia, and Virginia. The coverage was created by gridding 4,391 points and contouring the grid with 1.17-ft intervals. The polygons have elevation values halfway between the bounding contour arc values. This dataset honors data submitted for the asessment from the Kentucky Geological Survey; therefore contour lines may not match across State lines (see Process Steps). This map is one of many Geographic Information System (GIS) products of the National Coal Assessment that is being conducted by the U.S. Geological Survey in cooperation with State geological surveys and other Federal and State agencies. The Middle...
Categories: Web Site; Tags: 21013 = Bell, 21025 = Breathitt, 21071 = Floyd, 21095 = Harlan, 21115 = Johnson, All tags...
thumbnail
This dataset is a polygon coverage of the mined areas of the Pocahontas No. 3 coal bed. The polygons are subdivided into 3 categories. These categories are areas where resources are mined underground, areas where resources are mined on the surface, and areas where resources are not mined. This map is one of many Geographic Information System (GIS) products of the National Coal Assessment that is being conducted by the U.S. Geological Survey in cooperation with State geological surveys and other Federal and State agencies. The Pocahontas No. 3 coal bed occurs within the Pocahontas Formation (Lower Pennsylvanian) and underlies all or parts of Wyoming, McDowell, Raleigh, Summers, Mercer, Greenbrier, Logan, and Mingo...
Categories: Web Site; Tags: 51027 = Buchanan, 51051 = Dickenson, 51167 = Russell, 51169 = Scott, 51185 = Tazewell, All tags...
thumbnail
This dataset is a polygon coverage of structure contours (elevation) for the Pond Creek coal zone in Kentucky, West Virginia, and Virginia. The surface was created by gridding information from 137,355 points and contouring the grid into 100-ft intervals. Many of the points were derived from existing structure contoure maps obtained from Kentucky and West Virgina. In Virginia, data were searched from the StratiFact database created from the National Coal Resource Data System (NCRDS). Data from specific quadrangles in the StratiFact database from the West Virginia Geological and Economic Survey were also searched. The grid was created in EarthVision, was contoured and imported to ARC/INFO as polygons using an AML....
Categories: Web Site; Tags: 21013 = Bell, 21025 = Breathitt, 21071 = Floyd, 21095 = Harlan, 21115 = Johnson, All tags...
The following digital product represents the Acid DepositionSensitivity of the Southern Appalachian Assessment Area. Areashaving various susceptibilities to acid deposition from airpollution are designated on a three tier ranking in the region ofthe Southern Appalachian Assessment (SAA). The assessment is beingconducted by Federal agencies that are members of the SouthernAppalachian Man and Biosphere (SAMAB) Cooperative. Sensitivities toacid deposition, ranked high, medium, and low are assigned on thebasis of bedrock compositions and their associated soils, and theircapacities to neutralize acid precipitation.
Tags: 01015 = Calhoun, 01019 = Cherokee, 01027 = Clay, 01029 = Cleburne, 01049 = DeKalb, All tags...


    map background search result map search result map Overburden thickness categories of Pocahontas No. 3 coal bed Structure contours of the Pond Creek Coal Zone in Kentucky, West Virginia, and Virginia Potentially minable thickness of the Pond Creek Coal zone in Kentucky, West Virginia, and Virginia Mined Areas of the Pocahontas No. 3 Coal Bed Mined Areas of the Pocahontas No. 3 Coal Bed Overburden thickness categories of Pocahontas No. 3 coal bed Structure contours of the Pond Creek Coal Zone in Kentucky, West Virginia, and Virginia Potentially minable thickness of the Pond Creek Coal zone in Kentucky, West Virginia, and Virginia