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164882 results.

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Page 6041, results 151001 - 151025

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Not all publications have extents, not all extents are completely accurate
Gold in the United States, exclusive of Alaska and Hawaii
Albert Herbert Koschmann, M.H. Bergendahl
1962, Mineral Investigations Resource Map 24
The accompanying map shows the distribution of the principal gold mining districts in the United States (excluding Alaska and Hawaii). Only those districts that have produced 10,000 ounces of gold or more are shown. Gold ore reserves were not considered, and the types of deposits are not shown. Based on...
Tungsten in the United States, exclusive of Alaska and Hawaii
D.M. Lemmon, Ogden L. Tweto
1962, Mineral Investigations Resource Map 25
The accompanying map shows the tungsten deposits of the United States (exclusive of Alaska and Hawaii). The relative importance of the deposits, groups, or districts is shown by four symbols, indicating tungsten contents of: (1) greater than 10,000 short tons of tungsten metal, (2) 10,000 to 500 tons, (3) 500...
Lead in the United States, exclusive of Alaska and Hawaii
Edwin Thor McKnight, Allen Van Heyl, William Louis Newman
1962, Mineral Investigations Resource Map 15
The productive lead districts in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. The map is at a scale of 1: 3,168,000, (50 miles to the inch). Only those districts known or believed to contain 1,000 short tons or more of lead are shown;...
Rainwater as a chemical agent of geologic processes; a review
Dorothy Carroll
1962, Water Supply Paper 1535-G
Chemical analyses of the rainwater collected at several localities are given to show the variations of the principal constitutents. In rock weathering and soil-forming processes, the chemical composition of rainwater has an important effect which has been evaluated for only a few arid areas. In humid regions the important amounts...
Geology and ground water of the Red Lake area, Navajo Indian Reservation, Arizona and New Mexico
J. P. Akers, N. E. McClymonds, John William Harshbarger
1962, Water Supply Paper 1576-B
The Red Lake area in the Navajo Indian Reservation, Arizona and New Mexico, was studied by the U.S. Geological Survey to determine if 1 mgd (mil- lion gallons per day) of water could be obtained for the requirements of a proposed sawmill. Geologic mapping and stratigraphic studies indicated three favorable...