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Page 4831, results 120751 - 120775

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Pre-Monterey subcrop and structure contour maps, western San Luis Obispo and Santa Barbara Counties, south-central California
C.A. Hall Jr.
1982, Miscellaneous Field Studies Map 1384
Pre-Monterey (Miocene) subcrop and structure contour maps have been compiled from existing maps and well-hole data to depict the distribution of rocks that lie beneath the Monterey Formation and on which Tertiary rocks were deposited. These maps indicate the general topography of the sea floor when the Monterey Formation was...
Mineral resources potential map of the Pusch Ridge Wilderness Area, Pima County, Arizona
M. E. Hinkle, G. S. Ryan
1982, Miscellaneous Field Studies Map 1356-B
A mineral resource assessment of the Pusch Ridge Wilderness Area was conducted by the U.S. Geological Survey and U.S. Bureau of Mines. The area was evaluated for its mineral potential by analysis of geochemical samples by the U.S. Geological Survey and by examination of mines, prospects, and mineralized areas by...
Map showing sampled radiolarian localities in the western Paleozoic and Triassic belt, Klamath Mountains, California
William P. Irwin, David L. Jones, Charles D. Blome
1982, Miscellaneous Field Studies Map 1399
The western Paleozoic and Triassic belt, the largest of several major subdivisions of the Klamath Mountains geologic province, extends 300 km northward from the south end of the province in California to the north end of the province in Oregon (see inset map). The rocks of the belt are mainly...
Map showing some potential effects of petroleum spills on shorelines of the Port Townsend quadrangle, central Puget Sound region, Washington
R. F. Keuler
1982, Miscellaneous Field Studies Map 1238
Waterborne transport of crude oil into the Puget Sound region has increased rapidly since 1972 and may take another sharp increase during the next few years. In 1972, waterborne delivery of petroleum averaged 45,000 bdp (barrels per day); by 1972, the average had increased to 105,000 bpd (Pizzo and others,...
Geochemical survey of the Dolly Ann Roadless Area, Alleghany County, Virginia
Frank G. Lesure
1982, Miscellaneous Field Studies Map 1358-B
The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Dolly Ann Roadless Area (fig. 1) to test for indistinct or unexposed mineral deposits that might be recognized by their geochemical halos. Similar geochemical surveys based on trace-element analyses have been credited with the discovery of many types...