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Contributions to economic geology (short papers and preliminary reports), 1927: Part I - Metals and nonmetals except fuels
Gerald Francis Loughlin, George Rogers Mansfield
1927, Bulletin 795
The Geological Survey's "Contributions to economic geology" are published in two parts, one including papers on metals and nonmetals except fuels and the other including papers on mineral fuels. As the subtitle indicates, most of the papers in these volumes are of three classes (1) short papers describing as thoroughly...
American Tertiary mollusks of the genus Clementia
W. P. Woodring
1927, Professional Paper 147-C
Aside from its value as an aid in determining the age of Tertiary beds, the chief interest of the genus Clementia lies in the anomalous features of its present and former distribution. An attempt is made in this paper to trace its geologic history, to point out its paleobiologic significance,...
Potash brines in the Great Salt Lake Desert, Utah
T. B. Nolan
1927, Bulletin 795-B
During and immediately after the war the brines of the Salduro Marsh, in the Great Salt Lake Desert, were a source of considerable potash for the domestic supply. Although no potash has been produced from these brines in the last few years, a continued interest in the area has been...
The Gilbert district, Nevada
Henry Gardiner Ferguson
1927, Bulletin 795-F
The eastern part of the Monte Cristo Range, in Esmeralda County, Nev., has been prospected for many years, and one mine, the Carrie, was developed as early as 1890. The discovery of high-grade ore by the Gilbert brothers on the Last Hope claim in 1924 led to a boom during...
Quicksilver deposits of the Pilot Mountains, Mineral County, Nevada
William F. Foshag
1927, Bulletin 795-E
In the course of general geologic mapping of the Hawthorne quadrangle, in western Nevada, the writer undertook a short study of the quicksilver deposits of the Pilot Mountains. The work was. done under the supervision of Henry G. Ferguson, in charge of the field work in the Hawthorne quadrangle, and...
The brown iron ores of west-middle Tennessee
E. F. Burchard
1927, Bulletin 795-D
A study of the brown iron ore deposits of west-middle Tennessee has been carried on recently under a cooperative agreement between the Tennessee State Geological Survey and the United States Geological Survey. A detailed report on the subject was submitted in the spring of 1925 to the State Survey for...