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Page 5290, results 132226 - 132250

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Mineral resource potential map of the Cohutta Wilderness and the Hemp Top Roadless Area, northern Georgia and southeastern Tennessee
Jacob E. Gair, Gertrude C. Gazdik, Maynard L. Dunn Jr.
1982, Miscellaneous Field Studies Map 1415-C
The Cohutta Wilderness and the Hemp Top Roadless Area have minor occurrences of metallic minerals, but no known resource potential for such minerals in the forseeable future, judging by available data, and only a very minor potential for stone for aggregate, road construction, and similar nondimension use. The rocks of...
Maps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California
David A. Dellinger, Michael F. Diggles, E. A. Du Bray (compiler)
1982, Miscellaneous Field Studies Map 1185-B
A geochemical survey of the John Muir Wilderness was conducted by the U.S. Geological Survey between 1969 and 1978.  The 755-mi2 (1,956-km2) wilderness is located in the central Sierra Nevada, Calif. (fig. 1). Stream-sediment samples were collected at 1,434 sites in the wilderness and...
Mineral resource potential map of the Ramseys Draft Addition, Augusta and Highland counties, Virginia
F. G. Lesure, P. C. Mory
1982, Miscellaneous Field Studies Map 1369-C
Under the provisions of the Wilderness Act (Public Law 88-577, September 3, 1964) and the Joint Conference Report on Senate Bill 4, 88th Congress, the U.S. Geological Survey and the U.S. Bureau of Mines have been conducting mineral surveys of wilderness and primitive areas. Areas officially designated as "wilderness," "wild,"...
Mineral resource potential map of the Vermilion Cliffs-Paria Canyon instant study area, Coconino County, Arizona, and Kane County, Utah
Alfred L. Bush, Michael Lane
1982, Miscellaneous Field Studies Map 1475-D
In general, the mineral potential of the study area is low; in the past the area has yielded only several hundred tons of uranium ore, and there have been a number of unsuccessful efforts to produce gold. The generally small uraniferous deposits are in the Chinle Formation, mostly in the basal...
Geologic maps of the Sacramento-San Joaquin Delta, California
Brian F. Atwater
1982, Miscellaneous Field Studies Map 1401
The Sacramento-San Joaquin Delta, the arm of the San Francisco Bay estuary that reaches into the Central Valley of California, differs from typical coastal-plain deltas in three important respects.  First, rather than meeting the ocean individually and directly, all major waterways of this delta discharge via a single constricted outlet...
Mineral resource potential map of the Hells Hole further planning area (RARE II), Greenlee County, Arizona, and Grant County, New Mexico
J.C. Ratte, J.R. Hassemer, R.A. Martin, J. P. Briggs
1982, Miscellaneous Field Studies Map 1344-E
During 1979, the U.S. Geological Survey and the U.S. Bureau of Mines conducted field investigations to evaluate the mineral resource potential of the Hells Hole Further Planning Area. The investigations included geologic mapping, geophysical studies, geochemical sampling, and a survey of known mines, prospects, and mineralized areas. This report summarizes...
Mineral resource potential of the Granite Chief Wilderness Study Area, Placer County, California
David S. Harwood, Francis E. Federspiel, Eric E. Cather, Douglas F. Scott
1982, Miscellaneous Field Studies Map 1273-C
A mineral resource survey of the Granite Chief Wilderness Study Area in the Tahoe National Forest and Lake Tahoe Management Area was conducted between 1979 and 1981. The mineral resource potential of the area was evaluated from geologic and geochemical studies by the U.S. Geological Survey, and from the examination...
Annual Nutrient Loadings, Primary Productivity, and Trophic State of Lake Koocanusa, Montana and British Columbia, 1972-80
Paul F. Woods
1982, Professional Paper 1283
Limnological data collected at Lake Koocanusa were used to investigate the relationship of nutrient loadings, primary productivity, and trophic state of the reservoir during 1972-80. The reservoir, on the Kootenai River, was impounded by Libby Dam on March 21, 1972. Manipulation of the 7.16-cubic-kilometer reservoir for flood control, its primary...
Near-station terrain corrections for gravity data by a surface-integral technique
M. E. Gettings
1982, Open-File Report 82-1045
A new method of computing gravity terrain corrections by use of a digitizer and digital computer can result in substantial savings in the time and manual labor required to perform such corrections by conventional manual ring-chart techniques. The method is typically applied to estimate terrain effects for topography near the...