GIS Data
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Filter Total Items: 9495
Maps and index of radiocarbon-dated samples from Southern California
No abstract available.
Maps showing aeromagnetic survey and geologic interpretation of the Chignik and Sutwik Island quadrangles, Alaska
An aeromagnetic survey over part of the Chignik and Sutwik Island quadrangles, on the southern Alaska Peninsula, was flown in 1977 as part of the Alaska mineral resource assessment program (AMRAP). Maps at scales 1:250,000 and 1:63,360 have been released on open-file (U.s. Geological Survey, 1978a, 1978b). This report includes the aeromagnetic map superimposed on the topographic base (sheet 1) and
Maps showing mineral resource potential of the Virgin Mountains Instant Study Area, Clark County, Nevada
The Virgin Mountains Instant Study Area contains about 30,000 acres (12,000 ha) in southeastern Nevada. In accordance with the Federal Land Policy and Management Act (P.L. 94-579), the U.S. Bureau of Mines examined mines, prospects, and mineralized zones, and the U.S. Geological Survey made regional geologic, geophysical, and geochemical investigations. Tungsten and sheet mica have been produced f
Maps showing mines, quarries, prospects, and exposures in the Cheat Mountain Roadless Area, Randolph County, West Virginia
The Wilderness Act (Public Law 88-577, September 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine their mineral resource potential. Results must be made available to the public and be submitted to the President and the Congress. This report presents the results of a mineral survey of the Cheat Mountain R
Maps showing mines, quarries, prospects, and exposures in the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia
The Wilderness Act (Public Law 88-577, September 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine their mineral resource potential. The act also directs that results of such surveys be made available to the public and be submitted to the Administration and the Congress. This report presents a part of the
Maps showing seismotectonic setting of the Santa Barbara channel area, California
No abstract available.
Maps showing textural characteristics of benthic sediments in the Corpus Christi Bay estuarine system, south Texas
Corpus Christi Bay is a heavily used estuary on the south Texas coast in the northwest Gulf of Mexico (fig. 1). The Bay is stressed by diverse activities which could substantially affect its ecosystem. Such activities include shipping, resource production (oil, gas, and construction aggregate), commercial and sport fishing, and recreation. Shipping activities alone have had a substantial impact