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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...