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Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

Filter Total Items: 8997

Map showing locations of mines, prospects, and patented mining claims, and classification of mineral deposits in the Silver City 7 1/2-minute Quadrangle, Black Hills, South Dakota

This map is one in a set of 26 maps (see index map) at 1:24,000 scale of the Black Hills region of South Dakota and Wyoming om which are shown a geologic classification of mines, a bibliography of mineral deposits, and locations of active and inactive mines, prospects, and patented mining claims. Some of these maps are published as U. S. Geological Survey Miscellaneous Field Studies Maps (MF serie

Map showing locations of mines, prospects, and patented mining claims, and classification of mineral deposits in the Spearfish 7 1/2-minute Quadrangle, Black Hills, South Dakota

No abstract available. 

Map showing locations of mines, prospects, and patented mining claims, and classification of mineral deposits in the Sundance West 7 1/2- minute Quadrangle, Black Hills, Wyoming

No abstract available. 

Map showing Mesozoic diabase dikes in South Carolina described since 1960

This map, designed to accompany the geologic map of the crystalline rocks of South Carolina (Overstreet and Bell, 1965b), shows Mesozoic diabase dikes recognized in this area since that map was compiled in 1960.  

Map showing mineral occurrences and indicators in the Baird Mountains Quadrangle, northwestern Alaska

No abstract available.

Map showing principal coal beds and bedrock geology of the Buffalo Creek-Clear Creek area, central Powder River basin, Wyoming and Montana

No abstract available.

Map showing principal coal beds of the Clearmont Quadrangle, Sheridan County, Powder River basin, Wyoming

This map is a product of field mapping and of photogrammetric mapping using color aerial photographs at a scale of approximately 1:24,000 (Molina, 1983). These geologic investigations were part of a project to map the principal coal beds of large parts of the Powder River basin for national coal resource assessment.

Map showing radon potential of rocks and soils in Fairfax County, Virginia

Since 1984, indoor radon has gained national attention as a significant health hazard in the United States. Radon is a colorless, odorless, radioactive gas derived from uranium by radioactive decay. The U.S. Environmental Protection Agency (EPA) now projects that 5,000 to 20,000 lung-cancer deaths per year may be attributed to the long-term exposure to indoor radon and its radioactive decay produc

Map showing radon potential of rocks and soils in Montgomery County, Maryland

This report summarizes the radon potential of Montgomery County in the context of its geology. Radon is a naturally occurring gas produced by the radioactive decay of uranium. Radon produced by uraniferous rocks and soils may enter a house through porous building materials and through openings in walls and floors. Radon gases has a tendency to move from the higher pressure commonly existing in the

Map showing sedimentary basins of onshore and continental shelf areas, Alaska

No abstract available.

Map showing structural control of breccia pipes on the southern Marble Plateau, north-central Arizona

No abstract available.

Map showing wallrock alteration and geology of the Dugway Mining District, northern Dugway Range, Tooele County, Utah

No abstract available.