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Page 6293, results 157301 - 157325

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Not all publications have extents, not all extents are completely accurate
Geology of anthracite in the western part of the Ashland quadrangle, Pennsylvania
Boyd R. Haley, Harold H. Arndt, Howard E. Rothrock, Holly C. Wagner
1953, Coal Map 13
The Western Middle anthracite field is one of four structural basins containing anthracite in eastern Pennsylvania.  This report describes the geology of the part of the Western Middle field that lies in the western half of the Ashland quadrangle.  (See index map, sheet 2.)  The mapped area covers about 19...
Stratigraphic sections of the Phosphoria formation in Idaho, 1949, part 1
R.P. Sheldon, M.A. Warner, M.E. Thompson, H.W. Peirce
1953, Circular 304
The U. S. Geological Survey has recently measured and sampled the Phosphoria formation at many localities in Idaho and other western states. These data. will not be fully synthesized and analyzed for several years, but segments of the data, accompanied by little or no interpretation, are published as preliminary reports as...
Exploratory drilling program of the U.S. Geological Survey for evidences of zinc-lead mineralization in Iowa and Wisconsin, 1950-51
Allen Francis Agnew, Arthur E. Flint, John W. Allingham
1953, Circular 231
The Upper Mississippi Valley zinc-lead district covers 2, 500 square miles of Wisconsin, Illinois, and Iowa. It is one of the oldest mining districts in the United States, as lead mining by settlers began in 1788. Zinc has been mined since 1859, and the present production is more than ten...
A preliminary report of geochemical investigations in the Blackbird District
F. C. Canney, H. E. Hawkes, G.M. Richmond, J. S. Vhay
1953, Open-File Report 53-31
This paper reviews an experimental geochemical prospecting survey in the Blackbird cobalt-copper mining district. The district is in east-central Idaho, about 20 miles west-southwest of Salmon. The area is one of deeply weathered nearly flat-topped upland surfaces cut by steep-walled valleys which are tributary to the canyon of Panther Creek....