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Geologic map of the Gabbs magnesite and brucite deposits, Nye County, Nevada Geologic map of the Gabbs magnesite and brucite deposits, Nye County, Nevada
During World War II the magnesite deposits at Gabbs, in northwestern Nye County, Nevada, were the source of ore for the world's largest magnesium metal plant. This Government-owned plant, located at Henderson, near Las Vegas, Nevada, close to the source of power at Boulder Dam, produced 81,272 tons of metal from 920,000 tons of ore during the period September 1942 to November 1944. Owing...
Geologic map of the Tennessee Pass area, Eagle and Lake counties, Colorado Geologic map of the Tennessee Pass area, Eagle and Lake counties, Colorado
The triangular area bounded by the most productive mining districts of central Colorado- Leadville, Climax-Kokomo, and Gilman-Red Cliff- is of economic interest not only because of its close spatial relation to these districts but because it is closely related geologically. It contains the same rocks as the adjoining mining districts and is closely related to them structurally. It shows