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Page 7057, results 176401 - 176425

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Stratigraphic sections of the Phosphoria formation in Wyoming, 1947-48
Vincent Ellis McKelvey, L.E. Smith, R.A. Hoppin, F.C. Armstrong
1952, Trace Elements Investigations 184
As part of a comprehensive investigation of the phosphate deposits of the western field begun in 1947, the U. S. Geological Survey has measured and sampled the Permian Phosphoria formation at many localities in Wyoming and adjacent states. Because these data will not be fully synthesized for many years,...
Stratigraphic sections of the Phosphoria in Montana, 1947-48
Roger Warren Swanson, M. R. Klepper, W.R. Lowell, F.S. Honkala, E. R. Cressman, D.A. Bostwick, O.A. Payne, E. T. Ruppel
1952, Trace Elements Investigations 186
The U. S. Geological Survey has recently measured and sampled the Phosphoria formation at many localities in Montana 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, will be published as...
Stratigraphic sections of the Phosphoria formation in Utah, 1947-48
Vincent Ellis McKelvey, L.E. Smith, D.M. Kinney, J. W. Huddle, G.F. Hosford, R.S. Sears, D.P. Sprouse, M.D. Steward
1952, Trace Elements Investigations 185
As part of a comprehensive investigation of the phosphate deposits of the western field begun in 1947, the U. S. Geological survey has measured an sampled the full thickness of the Permian Phosphoria formation and its partial correlative, the Park City formation, at many localities in Utah and other western...
Uranium deposits in Grant County, New Mexico
Harry C. Granger, Herman L. Bauer Jr., Tom G. Lovering, Elliot Gillerman
1952, Trace Elements Investigations 156
The known uranium deposits of Grant county, N. Mex., are principally in the White Signal and Black Hawk districts. Both districts are within a northwesterly-trending belt of pre-Cambrian rocks, composed chiefly of granite with included gneisses, schists, and quartzites. Younger dikes and stocks intrude the pre-Cambrian complex....
Pegmatites of the Crystal Mountain district, Larimer County, Colorado
William R. Thurston
1952, Trace Elements Investigations 139
The Front Range of Colorado is composed chiefly of schists of the pre-Cambrian Idaho Springs formation which have been intruded by a variety of granitic batholiths. In the Crystal Mountain district the Mount Olympus granite, a satellite of the Longs Peak batholith, forms sills and essentially concordant multiple intrusions in...
Stratigraphic sections of the Phosphoria formation in Idaho, 1947-48, Part I
Vincent Ellis McKelvey, D.F. Davidson, F. W. O’Malley, L.E. Smith, F.C. Armstrong, R.P. Sheldon
1952, Trace Elements Investigations 183
The Permian Phosphoria formation of the western states contains one of the world's largest reserves of phosphate. Although previous investigations (see especially Mansfield, 1927), including reconnaissance geologic mapping and sampling, established the location of most of the important deposits and their quality of scattered localities, they were not sufficiently detailed...
Sedimentary volumes in Gulf Coastal Plain of the United States And Mexico: Part I: Volume of Mesozoic Sediments In Florida and Georgia
Paul Livingston Applin
1952, Geological Society of America Bulletin (63) 1159-1164
Mesozoic sedimentary rocks are present throughout Florida and the Coastal Plain of Georgia, but chiefly in the subsurface in an area of approximately 93,500 square miles. The Mesozoic rocks in this area belong, for the most part, to the Gulf and Comanche series of the Cretaceous system. Rocks tentatively classified...
Magmatic differentiation in tertiary and quaternary volcanic rocks from Adak and Kanaga Islands, Aleutian Islands, Alaska
Robert R. Coats
1952, Geological Society of America Bulletin (63) 485-514
Samples of 17 volcanic rocks of Tertiary and Quaternary age from Adak and Kanaga islands have been chemically analyzed and studied microscopically. Spectrograms have been made of 10 of them. The rocks from Adak represent one center of possibly older Tertiary age and two centers of younger Tertiary or Quaternary age. The rocks from Kanaga Island represent both a shield volcano of possibly Tertiary age, partly destroyed by the formation of a caldera, and a young cone of Quaternary age that...
Late quaternary geology and frost phenomena along Alaska Highway, Northern British Columbia and Southeastern Yukon
Charles Storrow Denny
1952, Geological Society of America Bulletin (63) 883-922
Reconnaissance field work along the Alaska Highway in northern British Columbia and southeastern Yukon furnishes preliminary data on the later Quaternary history of the region, and on the processes and results of intensive frost action. Extensive erosion surfaces were developed prior to glaciation, such as the Alberta Plateau of northeastern British Columbia and the Yukon Plateau in southern Yukon. In the region from Dawson Creek to Fort Nelson, British Columbia, the drift is dominantly...
Supergene and hydrothermal dispersion of heavy metals in wall rocks near ore bodies, Tintic district, Utah
H. T. Morris, T. S. Lovering
1952, Economic Geology (47) 685-716
Part I, T. S. Lovering. Preliminary work in the Tintic district, Utah, determined the relative distance of migration of ore metals in moist carbonate and silicic wall rocks near ore, and in ground water having a very sluggish circulation through mineralized ground. The analyses of efflorescences in the Tintic Standard mine openings at suitable localities indicated that under the conditions existing during the past 25 years lead has not...
Glaciation and drainage changes in the fish Lake Plateau, Utah
Clyde T. Hardy, S. Muessig
1952, Geological Society of America Bulletin (63) 1109-1116
The Fish Lake Plateau, nearly centrally located among the High Plateaus of Utah, exhibits glacial and other geomorphic features of regional significance. The plateau is divided into two areas by Fish Lake and the wide valley of Sevenmile Creek. The Fish Lake trough is a structural basin; Sevenmile Valley may be largely erosional. Volcanic rocks of Tertiary age underlie most of the plateau;...