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3321 results.

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Page 25, results 601 - 625

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Mines, prospects, and mineral sites, wilderness and RARE II areas, White Mountain National Forest, New Hampshire
G. C. Gazdik, Gazdik Harris, R. A. Welsh, V. P. Girol
1988, Miscellaneous Field Studies Map 1594-E
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 value, if any, that may be present. Results must be made available to the public and...
Aeromagnetic maps of the Colorado River region including the Kingman, Needles, Salton Sea, and El Centro 1 degree by 2 degrees quadrangles, California, Arizona, and Nevada
John Mariano, V.J. Grauch
1988, Miscellaneous Field Studies Map 2023
Aeromagnetic data for the Colorado river region have been compiled as part of the Pacific to Arizona Crustal Experiment (PACE) Project. The data are presented here in a series of six compilations for the Kingman, Needles, Salton Sea, and El Centro 1 degree by 2 degree quadrangles, California, Arizona, and...
Interpretive aeromagnetic map of the Eagle Mountains Wilderness Study Area, Riverside County, California
V. J. S. Grauch
1988, Miscellaneous Field Studies Map 1818
This report describes the interpretation of aeromagnetic surveys of the Eagle Mountains area, concentrating on the Eagle Mountains Wilderness Study Area (WSA). The interpretations are based on correlations with mapped surface geology by R. E. Powell, reproduced here from Powell and others (1984), as a base for the aeromagnetic data. The...
Maps showing anomalous concentrations of zinc, silver, antimony, manganese, barium and strontium in stream sediment and heavy-mineral concentrate from parts of the Ajo and Lukeville 1 degree by 2 degrees quadrangles, Arizona
P. K. Theobald, H. N. Barton
1988, Miscellaneous Field Studies Map 1834-E
This map is part of a folio of maps of the Ajo and Lukeville 1 degree x 2 degrees quadrangles, Arizona, prepared under the Conterminous United States Mineral Assessment Program. Other publications in this folio include U.S. Geological Survey Open-File Reports 82-419 (Barton and others, 1982), 82-599 (Klein, 1982), and...