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Description of seafloor sediment and preliminary geo-environmental report, Shelikof Strait, Alaska
Monty A. Hampton, K.H. Johnson, M.E. Torresan, W.J. Winters
1981, Open-File Report 81-1133
Shelikof Strait, situated between the Kodiak Island group and the Alaska Peninsula (Fig. 1), is included in OCS oil and gas lease area 60. Environmental geologic studies are being conducted by the U.S. Geological Survey prior to the scheduled September 1981 sale date. Seismic-reflection records, collected with 40- to 95-cm3...
Assessment of water quality in streams draining coal-producing areas in Ohio
C.L. Pfaff, D.R. Helsel, D.P. Johnson, C.G. Angelo
1981, Open-File Report 81-409
Quality of water in 150 sites in the coal-producing areas of eastern Ohio was studied in a two-phase investigation between May 1975 and August 1976. Results of phase one, a reconnaissance to determine the occurrence of certain inorganic and organic constituents and to relate their occurrence to coal mining, indicated...
Proceedings of Conference XIII, evaluation of regional seismic hazards and risk
Barbara B. Charonnat (compiler)
1981, Open-File Report 81-437
The participants in the conference concluded that a great deal of useful research has been performed in the national Earthquake Hazards Reduction Program by USGS and non-USGS scientists and engineers and that the state-of-knowledge concerning the evaluation of seismic hazards and risk has been advanced substantially. Many of the technical...
Approximate ground-water-level contours, April 1981, for the Soquel-Aptos area, Santa Cruz County, California
Richard M. Bloyd
1981, Open-File Report 81-680
Ground-water levels in selected wells were measured in the Soquel-Aptos, Calif., area in April 1981. On the basis of these measurements approximate ground-water-level contours were constructed. The general direction of ground-water movement in the Soquell-Aptos area is from the ridges in the northern part of the area, toward the adjacent...