Browse USGS by Category and Location

Category:	All Categories>topics>Earth characteristics>stratigraphic sections>bedrock geologic units
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Here are some USGS Web pages with more information on bedrock geologic units and Anywhere:

Aquifer basics Links to general information on water-supply by aquifers based on rock types and to principal national aquifers by name. (Score: 0.690)

Geologic Quadrangle Maps GQ Series (Score: 0.690)

Unsaturated-Zone Flow Program Overview of research to measure, predict, and understand the flow of water through soil and rock between the land surface and the water table with links to field sites, laboratory methods, theoretical developments, publications, and personnel. (Score: 0.690)

Carolina slate belt gold deposits in Virginia, North Carolina, South Carolina, and Georgia Report of research on the Carolina slate belt and gold deposits in Virginia, North Carolina, South Carolina, and Georgia with geologic mapping, mineralogic, geochemical, and fluid evolution studies, radiogenic dating, and stable isotope studies. (Score: 0.521)

Southern California Areal Mapping Project (SCAMP): find geologic maps Download digital geologic databases produced by the Southern California Areal Mapping Project (SCAMP) or view SCAMP work in progress by clicking on 1:100,000-scale, 30x60 quadrangles. (Score: 0.484)

Western Earth Surface Processes Team - Internet Map Server Western Earth Surface Processes Team webpage to access geologic maps and geologic program descriptions on the San Fracisco Bay area and western states. (Score: 0.367)

Geologic framework of the central Death Valley region Description of a multi-disciplinary effort to develop an integrated tectonic, geologic, and hydrogeologic data model for the central and southern Death Valley area with links to geologic map index, location maps, and 1999 conference. (Score: 0.356)

Geology of the onshore part of San Mateo County, California: A digital database preliminary report (Score: 0.354)

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About bedrock geologic units:

Definition: Units of rock, usually solid, that underlie soil or other unconsolidated, superficial material. [Adapted from Glossary of Geology, 4th ed.]

Used for: geologic formations, basement maps