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Page 6259, results 156451 - 156475

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Not all publications have extents, not all extents are completely accurate
Reconnaissance geology of placer deposits containing radioactive minerals in the Bear Valley district, Valley County, Idaho
J. Hoover Mackin, Dwight Lyman Schmidt
1953, Open-File Report 53-167
A reconnaissance of the Bear Valley district was undertaken to provide a geologic interpretation of placer deposits drilled by the U.S. Bureau of Mines. The placer minerals are monazite and a group of uranium bearing rare earth columbates and tantalates here referred to loosely as radioactive blacks. The monazite is...
Clay deposits of the Tierra Colorado district, southern Orange County, California
Steven Norman Daviess, M. N. Bramlette
1953, Open-File Report 53-51
The clay of this district is being mined for fire brick by the Vitrofrax Corporation. Much of the clay contains 35 percent or more of alumina and between 1 and 2 percent of iron oxide. Production is largely from an underground mine as the best clay deposit known in the...
Stratigraphic sections of the Phosphoria formation measured and sampled in 1952
Thomas McGiffin Cheney, R.P. Sheldon, E. R. Cressman, R.A. Smart, L.D. Carswell
1953, Open-File Report 53-36
A series of reports presenting detailed stratigraphic sections and analyses of samples of the Phosphoria formation in the western phosphate field is being prepared for publication as U. S. Geological Survey Circulars. To speed the availability of these data to industry and others having immediate need for such basic information,...
Coal resources of the United States (a progress report, October 1, 1953)
Paul Averitt, Louise R. Berryhill, Dorothy A. Taylor
1953, Circular 293
As estimated in this second progress report, the coal reserves of the United States remaining in the ground on January 1, 1953, total 1,899,739 million tons. This figure is about a 20 percent reduction of the total estimate published in the first progress report (Averitt and Berryhill, 1950). The new...
Progress report on the Killigwa anticlinorium, 1953
Irvin L. Trailleur, Bion H. Kent
1953, Open-File Report 54-305
This report was prepared to assist in the planning of seismic profiles to be run across the anticlinorium in the vicinity of the Kiligwa River. The stratigraphy and structure of the mapped area south of the anticlinorium are reviewed. Two facies of the Lisburne formation, a calcarenite-hydroclastic limestone facies and...
Stratigraphic relations of the Shakopee dolomite and the St. Peter sandstone in southwestern Wisconsin
Arthur Emerson Flint
1953, Open-File Report 53-71
This paper is concerned with the origin and geologic history of the boundary that separates the widespread St. Peter sandstone from the underlying Shakopee dolomite. That international surface is highly undulatory, and most contemporary geologists who have examined it believe that the contact irregularities result from pre-St. Peter subaerial erosion...