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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: 8999

Reconnaissance geologic map of the Presumido Peak Quadrangle, Arizona

No abstract available.

Reconnaissance geologic map of the the Las Tablas Quadrangle, Rio Arriba County, New Mexico

No abstract available.

Reconnaissance geologic map of the Ulysses Mountain Quadrangle, Lemhi County, Idaho

No abstract available.

Reconnaissance geologic map of the Western Chichagof and Yakobi Islands wilderness study area, southeastern Alaska

No abstract available.

Reconnaissance surficial geologic map of the Aurora Quadrangle, Nevada and California

No abstract available.

Reconnaissance surficial geologic map of the Bridgeport Quadrangle, California and Nevada

No abstract available.

Reconnaissance surficial geologic map of the Gabbs-Luning area, west-central Nevada

No abstract available. 

Regional depositional facies of the Cambrian Bonneterre Formation, Rolla 1 degree by 2 degrees Quadrangle, Missouri

No abstract available.

Results of core drilling of the Ramapo fault at Sky Meadow Road, Rockland County, New York, and assessment of evidence for reactivation to produce current seismicity

No abstract available.

Sections showing biostratigraphy and correlation of Tertiary rocks penetrated in wells drilled on the southern Oregon continental margin

Geologic interpretation of seismic reflection profiles on the Continental Shelves of Oregon and Washington is measurably enhanced through the knowledge of Tertiary subsurface stratigraphy penetrated in 10 deep exploration wells drilled in the mid-1960's (Braislin and others, 1971; Snavely and others, 1977). These subsurface data make it possible to relate to the acoustic units differentiated on se

Seismic reflection study of Flathead Lake, Montana

A seismic reflection survey of Flathead Lake, Montana, was carried out in 1970 to study the geologic structure underlying the lake. Approximately 200 km of track lines were surveyed resulting in about 140 km of useable data (Fig. 1). A one cu. in. air gun was used as the energy source. Navigation was by a series of theodolite sitings of the boat from pairs of shore-based control points. 

Seismicity map of the state of Texas

The data shown on this map and listed in table 1 are for earthquakes that were originally included in a study of seismic risk in the United States (Algermissen, 1969). This data file has been recompiled and updated through 1981. Some revisions of epicenters and intensities in the original file have been made, and intensities have been assigned to earthquakes that previously had none assigned. Only