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Areal geology of the Placerville Quadrangle, Colorado

Description: A report regarding the areal geology of the Placerville Quadrangle, located in colorado. This report concerns work done on behalf of the division of Raw Materials of the U.S. Atomic Energy Commission.
Date: May 1956
Creator: Bush, Alfred Lerner; Bromfield, Calvin Stanton & Pierson, Charles Thomas
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Reconnaissance for radioactivity in the metal-mining districts of the San Juan Mountains, Colorado

Description: "A reconnaissance for radioactive minerals in the San Juan Mountains, Colo. (fig. 1), was started in the western part by W.S. Burbank and C.T. Pierson in 1951, and continued in 1952 by Pierson, W.F. Weeks, and F.J. Kleinhampl, and in 1953 by Pierson and T.H.W. Loomis of the U.S. Atomic Energy Commission in the western part of the mountains in reconnaissance and in examination of a pitchblende occurrence found by Loomis. The work on which this paper is based was done by the Geological Survey on … more
Date: April 1956
Creator: Pierson, Charles Thomas; Weeks, W. F. & Kleinhampl, F. J.
open access

Summary of the Mineralogy of the Colorado Plateau Uranium Ores

Description: Report summarizing information regarding the mineralogy of uranium ores of the Colorado Plateau. The report includes sections on classification, mineralogy of the primary unoxidized ores, oxidation sequence and mineralogy of vanadiferous uranium ores, mineralogy of oxidized nonvanadiferous uranium ores, relation of oxidation to water saturation of ore, relative stability and size of oxidized deposits, secondary enrichment, and time and depth of oxidation.
Date: February 1956
Creator: Weeks, A. D.; Coleman, R. G. & Thompson, M. E.
open access

Regional Geophysical Investigations of the Uravan Area, Colorado

Description: Report discussing information produced from aeromagnetic and regional surveys conducted in the Uravan area of Colorado. This was part of a regional geology study of the Colorado Plateau.
Date: May 1956
Creator: Joesting, H. R. & Byerly, P. Edward
open access

Exploration for Uranium-Vanadium Deposits in Long Park and Adjacent Areas in the Southern Part of the Uravan District, Montrose County, Colorado

Description: A report pertaining to an exploration by the U.S. Geologic Survey in the southern part of the Uravan district for uranium-vanadium deposits. The explored area is in Montrose County, Colorado. The rocks exposed in the area are gently dripping marine and terrestial formations ranging in age from late Paleozoic to late Mesozoic.
Date: October 1956
Creator: Boardman, R. L.; Bowers, H. E.; Litsey, L. R. & Sumsion, C. T.
open access

Detailed Mineral and Chemical Relations in Two Uranium-Vanadium Ores

Description: The following report analyzes channel samples from two mines (Mineral Joe No. 1 and Virgin No. 3) on the Colorado Plateau that have been studied in detail both mineralogically and chemically.
Date: August 1956
Creator: Garrels, R. M.; Larsen, E. S., (3d.); Pommer, A. M. & Coleman, R. G.
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