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The Absorption Spectra of Complexes of Uranium (VI) with Some [beta]-Diketones

Description: Abstract: "The absorption spectra of the complexes of uranium (VI) with four [beta]-diketones were determined under various conditions of pH, concentration of uranium, and alcohol concentration. Under optimum conditions, the maximum molar absorptivity (31,200) is obtained using 2-furoyltri-fluoroacetone. This compares with about 4,000 and 19,000 for the thiocyanate and dibenzoylmethane complexes, respectively."
Date: October 1956
Creator: Feinstein, H. I.
open access

Abundance and Distribution of Uranium and Thorium in Zircon, Sphene, Apatite, Epidote, and Monazite in Granitic Rocks

Description: The following report covers investigations of uranium and thorium discovered within host minerals in the earth's crust, zircon, sphene, apatite, epidote, and monazite. The object of this investigation has been to obtain an approximate measure of the abundance and distribution of uranium and thorium among these five mineral phases.
Date: November 1956
Creator: Hurley, P. M. & Fairbairn, H. W.
open access

Age Determination of Zircon Crystals From Ceylon

Description: From Abstract: "Age determinations have been made on 21 crystals of gem quality zircon from Ceylon which are believed to have been derived from pegmatites of pre-Cambrian age."
Date: September 1954
Creator: Gottfried, David; Senftle, F. & Waring, C.
open access

Age Determinations on New Hampshire Granites

Description: From abstract: "Age determinations by the Larsen method are reported for the four Paleozoic plutonic series of New Hampshire."
Date: July 1955
Creator: Lyons, J. B.; Gottfried, D.; Smith, W. L.; Jaffe, H. W. & Waring, C. L.
open access

An Air Concentrator for Very Low Grade Colorado Plateau Uranium Ores

Description: Report discussing the use of an air concentrator on uraniferous sandstones for producing concentrates with over ten times the amount of uranium as original sandstone. A description of the concentrator, information regarding its operation, results of the concentration, information on the concentrator's applications, and a general summary are included.
Date: January 1953
Creator: Stieff, L. R. & Erickson, E. S., Jr.
open access

Airborne Radioactivity Survey of the Red Desert Region, Sweetwater County, Wyoming

Description: From abstract: An airborne radioactivity survey of a selected area in the Red Desert, Sweetwater County, Wyoming, containing outcrops of radioactive lignites and shales of known surface extent and uranium content, was flown on flight lines at three levels, respectively 250, 500, and 1,000 feet above the ground and spaced at one-quarter mile intervals. Measurements from three identical dual-channel radiation detectors were simultaneously recorded to obtain data at various distances from natural … more
Date: July 1951
Creator: Nelson, R. A.; Sharp, William N. & Stead, Frank W.
open access

Airborne Radioactivity Surveys for Phosphate in Florida

Description: Introduction: Deposits of phosphate in Florida, located beyond the limits of known producing areas, have been reported by prospectors and mining companies. Much of the information has been based upon prospecting and exploration which was undertaken many years ago and as a result the published data relating to the occurrence of these deposits are fragmentary, and few details relating to specific locations and extent are available.
Date: August 1953
Creator: Moxham, Robert Morgan
open access

Airborne Radioactivity Surveys for Phosphate in Florida

Description: Report discussing airborne radioactivity surveys, aimed at finding uraniferous phosphate deposits, in ten areas of Florida. A subsequent ground investigation of two radioactivity anomalies out of eight was conducted. Information on radioactivity measurements for each area is given as well as conclusions.
Date: August 1953
Creator: Moxham, R. M.
open access

Airborne Radioactivity Surveys in Geologic Exploration

Description: The following report describes the use of airborne radioactivity surveying and analytical techniques in geologic exploration by examples of the analysis or evaluation of airborne data related to specific geologic settings. The airborne radioactivity surveying program was begun in 1949 by the U.S. Geological Survey to assist in uranium exploration.
Date: August 1958
Creator: Moxham, R. M.
open access

Airborne Radioactivity Surveys in the Mojave Desert Region, Kern, Riverside, and San Bernardino Counties, California

Description: From abstract: Airborne radioactivity surveys in the Mojave Desert region, Kern, Riverside, and San Bernardino counties were made in five areas recommended as favorable for the occurrence of radioactive raw materials: (1) Rock Corral area, San Bernardino County. (2) Searles Station area, Kern County. (3) Soledad area, Kern County, (4) White Tank area, Riverside and San Bernardino counties. (5) Harvard Hills area, San Bernardino County. Anomalous radiation was detected in all but the Harvard Hil… more
Date: July 1952
Creator: Moxham, Robert Morgan
open access

The Aluminum Phosphate Zone in the Peace River Area, Land-Pebble Phosphate Field, Florida

Description: Report discussing information on the aluminum phosphate zone of the Peace River area. At the time of the report, the first plant to treat aluminum phosphate was probably to be located in this area. Information on the geology of the area, weathering/erosion, mineralogy, occurrence and distribution of aluminum, chemical relations and variations of aluminum phosphate, relation of geologic features, mining plans, and tonnage/grade of the zone are included.
Date: December 1953
Creator: Cathcart, J. B.
open access

Annotated Bibliography of Salt Deposits: A Supplement to U.S. Geological Survey Bulletin 1019-J

Description: Abstract: "This bibliography supplements the information on salt published in U.S. Geological Survey Bulletin 1019-J, "Annotated Bibliography and Index Map of Salt Deposits in the United States," by Walter B. Lang, 1957. The supplement contains additional information on the salt deposits of the United States and of foreign countries, as well as data on the composition, chemistry, geologic occurrences, geophysical exploration, distribution, technology, and production of salt. Additional suppleme… more
Date: January 1958
Creator: Lang, Walter B.; Read, Charles B.; Moore, George W. & Cooper, Margaret
open access

An Apparatus for the Study of Thermoluminescence from Minerals

Description: This report discusses an apparatus that has been constructed to record the thermoluminescence of a mineral in the form of a powder or a single crystal at temperatures from -100 C to +400 C.
Date: July 1957
Creator: Ashby, G. E. & Kellagher, R. C.
open access

An Application of Spectrographic Microphotometric Scanning

Description: A report about a previously published semiquantitative spectrographic method that was modified by applying microphotometric scanning of the spectrograms in such a way that the operator was free to do other work during a large part of the scanning time.
Date: July 1954
Creator: Waring, C. L.; Frank, Mona & Sherwood, A. M.
open access

Appraisal of the Accuracy of U.S. Geological Survey Ore Reserve Estimates for Uranium-Vanadium Deposits on the Colorado Plateau

Description: From Abstract: "The U.S. Geological Survey has made estimates of the reserves of uranium and vanadium in the carnotite deposits explored by Geological Survey drilling on the Colorado Plateau. This report presents an appraisal of the accuracy of the reserve estimates for deposits in the Uravan mineral belt, the causes of inaccuracy, and the significance of the estimates in terms of the total known reserves of the region."
Date: February 1954
Creator: Bush, Alfred L. & Stager, Harold Keith
open access

Areal Geology of the Little Cone Quadrangle, Colorado

Description: This report presents results of a geological study of the Little Cone quadrangle in southwestern Colorado, as well as information on the mineralogy of the location.
Date: June 1958
Creator: Bush, A. L.; Marsh, O. T. & Taylor, R. B.
open access

Areal Geology of the Placerville Quadrangle, Colorado

Description: Report discussing the regional geology, geomorphology, structure, mineral deposits, and details of the sedimentary and igneous rocks of the Placerville Quadrangle in Colorado.
Date: May 1956
Creator: Bush, Alfred Lerner; Bromfield, C. S. & Pierson, C. T.
open access

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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