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Page 7278, results 181926 - 181950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
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...
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...
A manganese deposit of Pleistocene age in Bannock County, Idaho
D. F. Hewett
1927, Bulletin 795-H
Reports of the discovery and exploration of manganese deposits in southeastern Idaho within recent years having come to the Geological Survey, the writer took advantage of an opportunity to spend a day at the deposits in October, 1926. The examination was made in company with V. C. Heikes, of the...
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...
Phosphate rock in the Three Forks-Yellowstone Park region, Montana
D. Dale Condit, E.H. Finch, J. T. Pardee
1927, Bulletin 795-G
The region described is about 7,000 square miles in area. It includes most of Gallatin and Madison Counties, in Montana, and some contiguous parts of Idaho and Wyoming. Within it are several broad fertile valleys and a number of prominent mountain ranges. A considerable part is underlain by a bed...
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,...
The Montana earthquake of June 27, 1925
J. T. Pardee
1927, Professional Paper 147-B
The earthquake of June 27, 1925, in Montana caused considerable damage within an area of 600 square miles or more, the center of which is in latitude 46° 5' N. and longitude 111° 20' W., a short distance southeast of Lombard. It was a seismic disturbance of the first...
Geology and ore deposits of the Leadville mining district, Colorado
S. F. Emmons, J.D. Irving, G. F. Loughlin
1927, Professional Paper 148
Adequate treatment of so large and so extensively developed a district as that of Leadville necessitates a voluminous report, in which the practical questions of prime interest to the commercial world can not be systematically answered until the data on which they depend are discussed. Many readers will no doubt...
Large springs in the United States
Oscar Edward Meinzer
1927, Water Supply Paper 557
What are the largest springs in the United States, how much water do they discharge, and what geologic conditions produce them are questions of much popular interest and considerable scientific and economic importance. Yet the information in regard to large springs has been so widely scattered and so difficult to...
Plants as indicators of ground water
Oscar Edward Meinzer
1927, Water Supply Paper 577
Perhaps the most outstanding feature of the flora of the desert is its relation or lack of relation to the water table. On the one hand are the plants which are adapted to extreme economy of water, which depend on the rains that occur at long intervals for their scanty...