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Geologic map of the Gabbs magnesite and brucite deposits, Nye County, Nevada

Miscellaneous Field Studies Map 35
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Abstract

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 to the oversupply of magnesium toward the end of the war, mine production as a source for magnesium metal was curtailed and was finally stopped in November 1944.  As of January 1947, 241,000 tons of magnesite from this area had been used in the production of refractories and oxychloride cement.  Brucite deposits associated with the magnesite have been mined almost continuously since 1935 and had yielded 246,000 tons of ore through January 1945 for use in the refractoies industry of Ohio.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Geologic map of the Gabbs magnesite and brucite deposits, Nye County, Nevada
Series title Miscellaneous Field Studies Map
Series number 35
DOI 10.3133/mf35
Year Published 1956
Language English
Publisher U.S. Geological Survey
Description 54.16 x 41.21 inches
Country United States
State Nevada
County Nye County
Scale 2400
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