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Not all publications have extents, not all extents are completely accurate
Western Molybdenum Company mine, Chewelah district, Stevens County, Washington
John Roberts Cooper
1950, Open-File Report 50-20
The Western Molybdenum Company mine was opened many years ago to obtain copper. The only production was several cars of crude copper ore shipped during World War I. An unsuccessful attempt to produce molybdenum was made in 1939-1941.The deposit consists of steeply dipping, northeast-striking veins in monzonite and marble, carrying...
Gypsiferous deposits on Sheep Mountain, Alaska
Richard A. Eckhart
1950, Open-File Report 51-62
Gypsiferous deposits occur on the south side of Sheep fountain, 112 miles northeast of Anchorage via the Glenn Highway. Sheep Mountain is a high east trending, ridge, approximately 10 miles long and 3 miles wide. It is bordered on the west by Caribou Creek and on the east by Tahneta...
Geology of the Limestone Hills, Broadwater County, Montana
Edward Thompson Ruppel
1950, Open-File Report 50-14
The Limestone Hills, a natural topographic unit having an area of about 16 square miles, are situated a few miles west and southwest of Townsend, Broadwater County, Montana. They are composed of pre-Cambrian, Paleozoic, and Mesozoic sedimentary rocks i...
Geology of the Dover magnetite district, New Jersey
P.K. Sims
1950, Open-File Report 50-15
This report has been prepared with two purposes in mind - to provide a better understanding of the magnetite deposits of the district and to present detailed petrologic and structural information that will aid in an understanding of the geology of the crystalline Highlands of Jew Jersey and adjacent states....
Structural geology of the Terlingua quicksilver district, Texas
George Albert Thompson Jr.
1950, Open-File Report 50-9
Geologic mapping, supplemented by detailed investigations at the mines, has revealed new information about the geologic structure of the Terlingua quicksilver district, Texas. Attention is focused on the nature and origin of domes, grabens, and breccia pipes, structures that are unusually well developed in the area. The sedimentary rocks, of...
Techniques used in mine-water problems of the east Tennessee zinc district
Deane Frederick Kent
1950, Circular 71
A study of ground water as related to mining in cavernous limestones and dolomites in eastern Tennessee was made in 1946 by the U. S. Geological Survey. Surface and subsurface mapping indicated the geologic control of underground channels. Several methods of tracing water were tried and new techniques in using...
Coal resources of Wyoming
Henry L. Berryhill, Donald M. Brown, Andrew Brown, Dorothy A. Taylor
1950, Circular 81
The Antlers aquifer, which consists of as much as 900 feet of friable sandstone, silt, clay, and shale crops out in areas of 1 ,860 square miles and underlies about 4,400 square miles in southeastern Oklahoma. Precipitation ranges from 34 to 50 inches per year across the outcrop area which...
Coal resources of the United States, A progress report, November 1, 1950
Paul Averitt, Louise R. Berryhill
1950, Circular 94
Interest in the quantity and quality of the coal reserves of the United States has increased greatly since the end of World War II, principally because of the growing realization that the ultimate reserves of petroleum and natural gas, although largely undefined, still. have finite limits. With the greatly increased...
Coal resources of New Mexico
Charles Brian Read, R. T. Duffner, G. H. Wood, A.D. Zapp
1950, Circular 89
A study of water quality degradation due to brine contamination was made in an area of about 1,700 sq mi in east-central Oklahoma. The study area coincides in part with the outcrop of the Vamoosa-Ada aquifer of Pennsylvanian age. Water samples collected from 180 wells completed in the Vamoosa-Ada aquifer...