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January 1, 1979

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

Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

January 1, 1979

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

January 1, 1979

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

January 1, 1979

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

No abstract available.

January 1, 1979

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

No abstract available.

January 1, 1979

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