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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

Revised correlation chart of coal beds, coal zones, and key stratigraphic units in the Pennsylvanian rocks of eastern Kentucky

This report revises Miscellaneous Field Studies Map MF-1188 (Rice and Smith, 1980). Major revisions to the original correlation chart include formal naming of key marine units in Kentucky and replacement of informally named marine units incorrectly projected into Kentucky from adjacent states. Also included in the report is the proper correlation of some regionally recognized coal bed names that h

Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula

Potassium-argon age determinations for 84 volcanic, intrusive, and hydrothermally altered rocks from the Port Moller, Stepovak Bay, and Simeonof Island quadrangles are reported here. Of these age determinations, 78 samples were analyzed as part of Alaska Mineral Resource Assessment Program (AMRAP) studies in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles. Age deter- minations for 6
By
Ecosystems Mission Area, Alaska Science Center

Sinkholes and karst-related features of the Shenandoah Valley in the Winchester 30' x 60' Quadrangle, Virginia and West Virginia

No abstract available.

Stratigraphic and time-stratigraphic cross sections: A north-south transect from near the Uinta Mountain axis across the Basin and Range transition zone to the western margin of the San Rafael Swell, Utah

No abstract available.

Stratigraphic framework for geologic and geohydrologic studies of the subsurface Cretaceous section near Charleston, South Carolina

No abstract available.
By
Water Resources Mission Area, South Atlantic Water Science Center (SAWSC)

Summary and interpretive geochemical maps of West Virginia

No abstract available.

Surficial geologic map of the Tyonek B-4 Quadrangle, south-central Alaska

No abstract available.

Wetlands of modern and ancestral Lakes Erie and St. Clair, Michigan, Ohio, Indiana, Pennsylvania, and New York, U.S.A., and Ontario, Canada

No abstract available.

Quaternary geologic map of the Ozark Plateau 4° x 6° quadrangle, United States

The Quaternary Geologic Map of the Ozark Plateau 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials ar
By
Geology, Minerals, Energy, and Geophysics Science Center

Aeromagnetic map of the San Francisco Bay Area, California

No abstract available.

Assessment of the Joplin 1° x 2° quadrangle, Kansas and Missouri, for Mississippi Valley-type deposits and other minerals

This map is a part of the folio of maps of the Joplin 1° X 2° quadrangle, Kansas and Missouri, which was prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio to date include the U.S. Geological Survey Miscellaneous Field Studies Maps MF-2125-A through D (Erickson and others, 1990; Grisafe and Rueff, 1992; Blair and others, 1992; McCafferty and

Bathymetry of south flank of Kilauea Volcano, Hawaii

No abstract available.