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Preliminary report on the geology of San Nicolas Island, California
J. G. Vedder, J.E. Schoelhamer, M.C. Israelsky
1956, Open-File Report 56-126
The U. S. Geological Survey, at the request of the Director of Naval Petroleum Reserves, undertook a geologic investigation of San Nicolas Island, Ventura County California, in the spring of 1955. This preliminary report summarizes present knowledge concerning the general stratigraphy and structure of the island. Additional surface and underwater...
Synthesis of calcium vanadate minerals and related compounds
Richard F. Marvin
1956, Trace Elements Investigations 616
Synthesis of natural vanadates shows that most of them are stable in an acid environment. Phase studies of a portion of the system CaO-V2O5-H2O indicate that calcium vanadates are an indicator of environmental pH conditions. Some minerals, such as pascoute, indicate rapid evaporation of vanadite solutions; other minerals, such as...
Host rocks and their alterations as related to uranium-bearing veins in the United States
George W. Walker
1956, Trace Elements Investigations 638
This paper, dealing with the different kinds of host rocks and their alterations associated with uranium-bearing veins in the United States, is a chapter of a comprehensive report entitled , "Geology of uranium-bearing vein deposits in the United States," in preparation by George W. Walker, Frank W. Osterwald, and others....