Found 53 datasets matching "Lower Pennsylvanian".
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As part of the U.S. Geological Survey Water Availability and Use Science Program study of Appalachian Plateaus aquifers, bottom elevations and thicknesses were determined for Permian, Upper...
Search relevance: 156.28 | Views last month: 0 -
This 1:24,000-scale geologic map includes new geologic mapping as well as compilation and revision of previous geologic maps. Field investigations were conducted from 2009-2011, while also...
Search relevance: 58.39 | Views last month: 0 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 41.40 | Views last month: 0 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 40.69 | Views last month: 0 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 40.43 | Views last month: 0 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 38.66 | Views last month: 2 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 38.66 | Views last month: 1 -
A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use...
Search relevance: 38.66 | Views last month: 0 -
The hydrogeologic framework for the Lake Michigan Basin model was developed by grouping the bedrock geology of the study area into hydrogeologic units on the basis of the functioning of each...
Search relevance: 36.53 | Views last month: 0 -
The Marshall aquifer underlies much of the Lower Peninsula of Michigan and has a maximum thickness of 493 feet (Lampe, 2009). The aquifer consists mainly of medium-grained sandstone and is...
Search relevance: 32.26 | Views last month: 0 -
The San Juan basin is a significant physical and structural element in the southeastern part of the Colorado Plateau physiographic province. The San Juan basin is in New Mexico, Colorado, Arizona,...
Search relevance: 30.54 | Views last month: 0 -
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of...
Search relevance: 29.35 | Views last month: 0 -
Cell maps for each oil and gas assessment unit were created by the USGS to illustrate the degree of exploration, type of production, and distribution of production in an assessment unit or...
Search relevance: 29.19 | Views last month: 1 -
This dataset captures in digital form previously published maps showing the inferred extent and subsurface elevation of several Paleozoic consolidated rock units in the northern Midwest of the...
Search relevance: 29.13 | Views last month: 1 -
Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to...
Search relevance: 26.84 | Views last month: 0 -
Groundwater is an often overlooked freshwater resource compared to surface water, but groundwater is used widely across the United States, especially during periods of drought. If groundwater...
Search relevance: 26.35 | Views last month: 0 -
Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to...
Search relevance: 26.24 | Views last month: 1 -
This dataset is a point coverage of the Pocahontas No. 3 coal with attributes on data location, minable thickness, and elevation, in feet. The file is also found as an ASCII Appendix of Chapter H,...
Search relevance: 26.03 | Views last month: 1 -
This dataset is a polygon coverage of counties limited to the extent of the Pocahontas No. 3 coal bed resource areas and attributed with statistics on these coal quality parameters: ash yield...
Search relevance: 25.69 | Views last month: 0 -
The Total Petroleum System is used in the National Assessment Project and incorporates the Assessment Unit, which is the fundamental geologic unit used for the assessment of undiscovered oil and...
Search relevance: 25.51 | Views last month: 0
