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Publication Extents

Not all publications have extents, not all extents are completely accurate
Manganese, iron, and barite deposits of the James River-Roanoke River district, Virginia
Gilbert H. Espenshade
1952, Miscellaneous Field Studies Map 5
During the period 1940-1942 the United States Geological Survey made a geologic study of the manganese deposits of the James River-Roanoke River district, in the general vicinity of Lynchburg, Va. (fig. 1), as part of its program of strategic minerals investigations.  This work was done by the writer and supervised...
Geologic map of bastnaesite deposits, Birthday claims, San Bernardino County, California
W. N. Sharp, L.C. Pray
1952, Miscellaneous Field Studies Map 4
In April 1949 a deposit containing considerable quantities of the rare mineral bastnaesite - the fluorocarbonate of cerium, lanthanum, and other rare earths - was discovered near Mountain Pass, San Bernardino County, Calif.  Small quantities of bastnaesite have been found in several places in the United States, but this area...
Geologic structure map of the Beetown lead-zinc area, Grant County, Wisconsin
Allen V. Heyl Jr., Erwin J. Lyons, John J. Theiler
1952, Miscellaneous Field Studies Map 3
The Beetown area, in Grant County, Wisconsin, in the northwestern part of the Upper Mississippi Valley zinc-lead district, lies in the western part of T. 4 N., R. 4 W., and the eastern part of T. 4 N., R. 5 W. The village of Beetown is at about its center. Recent...
Geologic map of the Barnes Hill talc prospect, Waterbury, Vermont
A.H. Chidester, G. W. Stewart, D.C. Morris
1952, Miscellaneous Field Studies Map 7
The Barnes Hill talc prospect is in northeastern Waterbury township, Washington County, Vermont, about 2.2 miles N. 35° E. of the road triangle at Waterbury Center.  The deposit occurs in a body of ultramafic rock that crops out between the altitudes of 1,150 and 1,190 feet above sea level, near...
Stratigraphic sections of the Phosphoria formation measured and sampled in 1951
Thomas McGiffin Cheney, J.A. Peterson, M.A. Warner, R.A. Smart, R.G. Waring, R.P. Sheldon
1952, Open-File Report 52-23
The first four of a series of reports giving detailed stratigraphic sections and analyses of samples of the Phosphoria formation in the western phosphate field as described and sampled by the U. S. Geological Survey will soon be published as Circulars 208 through 211. Because of the needs of industry...
Geology of the Alaska-Juneau lode system, Alaska
William Stephens Twenhofel
1952, Open-File Report 52-160
The Alaska-Juneau lode system for many years was one of the worlds leading gold-producing areas. Total production from the years 1893 to 1946 has amounted to about 94 million dollars, with principal values in contained gold but with some silver and lead values. The principal mine is the Alaska-Juneau mine,...
Preliminary report on the Passamaquoddy bedrock survey, July-August, 1951
William Ogden Smith, J. E. Upson
1952, Open-File Report 52-140
In order to understand the results of the Passamaquoddy bedrock survey and the details of the method of obtaining them, it is desirable to have, in outline, a general idea of the methods and their application. In this part of the report a general account of the operation will be...
A magnetic anomaly near Bear Lake, Houghton County, Michigan
James C. Wright
1952, Open-File Report 52-169
A large magnetic anomaly of unknown origin occurs about 1 1/2 miles east of Bear Lake, Houghton County, Michigan, in secs. 24 and 258 T. 56 N., R. 34 W. The occurrence is isolated in an area of very weakly magnetic rocks and has special geologic interest because it is...
Preliminary report on the Nelson and Radovan copper prospects, Nizina district, Alaska
C.J. Sainsbury
1952, Open-File Report 52-134
Renewed copper exploration by Alaska Copper Mines, Incorporated, at the Nelson and Radovan prospects, Nizina district, Alaska, led the Geological Survey in 1951 to map in detail the Nelson fault block, and to re-examine the old workings. In addition, two new prospects were studied. The Nelson fault block is cut by...
Heavy-mineral analysis of sedimentary rocks of northern Alaska
Robert Hamilton Morris
1952, Open-File Report 52-102
The Navy Oil Unit of the United States Geological Survey has been investigating the geology of Naval Petroleum Reserve No. 4, northern Alaska. As part of this program, heavy-mineral samples were prepared from cores of the test wells and core holes and studied to determine stratigraphic correlations. Using the following...