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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

Geologic and hydrologic aspects of tunneling in the Twin Cities area, Minnesota

This report presents the results of a pilot study of geologic and hydrologic aspects of tunneling in part of the Minneapolis-St. Paul (Twin Cities) metropolitan area, Minnesota. The Minnesota Geological Survey collected, compiled and interpreted geologic and engineering-test data and the U.S. Geological Survey complies and interpreted hydrologic data. The report was prepared on behalf of the U.S.
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Geologic interpretation of aeromagnetic map of the Seward and Blying Sound quadrangles, Alaska

An aeromagnetic survey of the Seward and northern part of the Blying Sound quadrangles was flown by Geometrics, Inc., during 1975-77 to provide magnetic data to aid in an appraisal of the mineral resources. Background details of the regional geology and major structures are described in a companion report by Tysdal and Case (1979), and interpretation of the gravity data are described in a report b

Geologic interpretation of the gravity anomaly map of the Seward and Blying Sound quadrangles, Alaska

For more than 20 years, gravity surveys have been conducted in the vicinity of Prince William Sound, the epicentral region of the great Alaska earthquake of March 27, 1964. Some of the major regional gravity anomalies were outlined by Thiel, Ostenso, Bonini (1960), and additional anomalies were defined by pre- and post-earthquake gravity studies reported by Barnes and Allen (1965) and Case, Barnes

Geologic map and coal resources of the Emery West Quadrangle, Emery and Sevier counties, Utah

No abstract available.

Geologic map and coal resources of the Flagstaff Peak quadrangle, Emery, Sanpete, and Sevier Counties, Utah

No abstract available.

Geologic map and coal sections of the Forks Ranch Quadrangle, Big Horn County, Montana

The Forks Ranch quadrangle lies on the gently-dipping east flank of the Powder River basin, near its trough line.

Geologic map and coal sections of the Quietus Quadrangle, Big Horn and Powder River counties, Montana

No abstract available.

Geologic map and coal sections of the Twentymile Butte Quadrangle, Campbell County, Wyoming

No abstract available.

Geologic map and cross sections of Tertiary rocks in the Thomas Range and northern Drum Mountains, Juab County, Utah

No abstract available.

Geologic map of exposed Precambrian rocks, Rolla 1 degree by 2 degrees Quadrangle, Missouri

No abstract available.

Geologic map of parts of the Grandmother Mountain East and Grandmother Mountain West quadrangles, Luna County, New Mexico

No abstract available.

Geologic map of the Amenthes Quadrangle of Mars

The Amenthes quadrangle includes two main physiographic and geologic subdivisions. In the southern part of the quadrangle, densely cratered plateaus rise about 3 km above sparsely to moderately cratered plains. The low plains that form Elysium Planitia also build the eastern flank of the Isidis basin, which mostly lies with the adjacent Syrtis Major quadrangle to the west: the Elysium region, one