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Antimony Deposits of El Antimonio District Sonora, Mexico

Description: From introduction: This is one of a series of detailed studies of the antimony deposits of Mexico, which were investigated by the United States Geological Survey and the Instituto de Geologia de Mexico. The investigation was part of a cooperative program sponsored by the Interdepartmental Committee for Scientific and Cultural Cooperation, under the auspices of the Department of State.
Date: 1949
Creator: White, Donald Edward & Guiza, Reinaldo
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Coal Deposits of the Santa Clara District Near Tonichi, Sonora, Mexico

Description: From abstract: The Santa Clara coal district is 7 to 10 kilometers west of Tonichi, a small town on the Rio Yaqui, in southeastern Sonora, Mexico. Tonichi was the terminus of a branch railroad from Corral until May 1945, when the end of the line was removed. The coal deposits were developed by the Southern Pacific Railroad from the 1890's until about 1911, when the mines were abandoned, partly because the coal was found unsuitable for use in locomotives. Other coal deposits, near Los Bronces an… more
Date: 1949
Creator: Wilson, Ivan F. & Rocha, Victor S.
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Manganese Resources of the Artillery Mountains Region, Mohave County, Arizona

Description: From introduction: The sampling on which the estimates of ore reserves in this report are partly based was done by Lasky and Roberts. The text was written by Lasky, who, except where otherwise noted, is responsible for any descriptions, comments, and conclusions concerning the area beyond the limits of the Hanna holdings, as well as for all statements concerning reserves and recommendations for future prospecting.
Date: 1949
Creator: Lasky, Samuel G. & Webber, B. N. (Benjamin Nevitt), 1899-
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Preliminary Results of Prospecting of the "Leached" Zone Over Phosphate Deposits in NW 1/4 of Sec. 9, T. 31 S., R. 25 E., Polk County, Florida

Description: Report discussing a geological examination of an area in Polk County, Florida with leached zones containing uranium. The objective of the study was to determine the advisability of making plans for stockpiling the leached zone material in this area.
Date: December 1949
Creator: Stewart, Robert H.
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Shorter Contributions to Alaskan Trace Elements Studies: 1946: Part 1: Trace Elements Investigations in the Grant Creek Area, Yukon Region, Alaska

Description: Report discussing field search of the U.S. Geological Survey. From abstract: "Field search in August 1946 failed to locate a reported occurrence of float from pitchblende veins in the Grand Creek area north of the Yukon River about 30 miles west of Tanana in central Alaska."
Date: October 4, 1949
Creator: Killeen, P. L. & White, M. G.
open access

Staff Report on Phosphates

Description: Report discussing phosphates found in Florida and investigations of uranium in the "Western Phosphate Field," which covers an area of about 100,000 square miles in Montana, Idaho, Wyoming, and Utah.
Date: June 1949
Creator: McKelvey, V. E. & Cathcart, James B.
open access

Structural Geology of the Hawthorne and Tonopah Quadrangles, Nevada

Description: From introduction: The object of this paper is to describe the salient features of Jurassic diastrophism in parts of the Tonopah and Hawthorne quadrangles in west-central Nevada. The problem is complicated by the lack of continuity of exposures, earlier folding of the older rocks, metamorphism caused by the later granitic in-trusions, and by superposed Tertiary and later normal faults.
Date: 1949
Creator: Ferguson, Henry G. & Muller, Siemon W.
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