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Publication Extents

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Geology and Thermal History of Mammoth Hot Springs, Yellowstone National Park, Wyoming
Keith E. Bargar
1978, Bulletin 1444
Mammoth Hot Springs, located about 8 km inside the north entrance to Yellowstone National Park, consists of nearly 100 hot springs scattered over a score of steplike travertine terraces. The travertine deposits range in age from late Pleistocene to the present. Sporadic records of hot-spring activity suggest that most of...
Proposed parameters for an automated mapping satellite (Mapsat) system
Alden P. Colvocoresses
1978, Open-File Report 78-932
Landsats-1, -2, and -3, although not defined as mapping satellites, are in fact effectively recording the Earth in a form suitable for presentation as small-scale image maps. These spacecraft have demonstrated the effectiveness of Earth sensing, which must now move from the research to the operational phase. Landsat-D is designed...
Bibliographic supplement to U.S. Geological Survey Bulletin 1426 for 1975 through June 1977
Wenonah E. Bergquist
1978, Open-File Report 78-349
This bibliography is a supplement to U.S. Geological Survey Bulletins 1426 (Bergquist, 1976) and 1263 (Heath and Tabacchi, 1968). The titles listed result from work undertaken in cooperation with national agencies partly through technical assistance projects under the auspices of the Agency for International Development, U.S. Department of State; partly...
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Petersburg Quadrangle, Alaska
Edward Huntington Cobb
1978, Open-File Report 78-870
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Petersburg quadrangle, Alaska. All references to reports of the Geological Survey, to most reports of the U.S. Bureau of Mines, and to most reports...
Comparison of the Wilfley concentration table and hand panning for concentration of heavy minerals prior to geochemical analysis
William R. Greenwood, M.E. Koesterer, Steve Ludington, Donald A. Risoli
1978, Open-File Report 78-712
Chemical analysis of heavy—mineral concentrates of stream sediments is a common geochemical exploration technique used by the U.S. Geological Survey. Generally these concentrates are prepared by hand panning at streamside or in a washtub and then further concentrated using heavy—liquid (bromoform) techniques in a laboratory. Concentration using heavy liquids is...