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."

A bibliography which consists of references to published literature, press releases, speeches, and both open-file and other unclassified reports dealing with uranium, thorium, and radioactive occurrences in several United States states.

From Introduction: "This catalog is a list of specimens of radioactive minerals for which the Geological Survey has been collecting optical, X-ray diffraction, and other data."

From abstract: "Mudstone samples were collected from uranium-vanadium ore-bearing sedimentary formations on the Colorado Plateau to determine if differences could be detected in the gross clay mineralogy between red and green mudstones which are otherwise stratigraphically equivalent, between ore-bearing and barren mudstone, and between other relationships referred to in the conclusions below."

Report discussing a study of the crystal structure of montroseite crystals. Results of X-ray study, crystal structure analysis, features of the structure, and crystal chemistry and alteration information are included.

From abstract: Drilling at the Project GNOME site, which is in the approximate center of sec. 34, T. 23 S., R. 30 E., NMPM, was undertaken in August and September 1958 by the W-W Drilling Company. The purpose of drilling this hole, which is at the precise location of the proposed shaft, was to determine (1) the lithologic and water-bearing characteristics of the rocks of Cenozoic, Mesozoic, and Paleozoic age that lie above the salt-bearing sequence in the Salado formation; (2) the depth to the top of the unleached salt and associated evaporites in the Salado formation; and (3) the local details of the salt-bearing sequence in the Salado formation.

The following report covers a chemical study that was made of the Salt Wash member of the Morrison formation of Jurassic age in the Jo Dandy area, Montrose County, Colorado in 1954. The chemical study was made to investigate the distribution of elements in the host rocks with emphasis on the pattern of variation as related to the position of known ore bodies, and to determine average concentrations of some of the elements in the major rock types.

Report discussing a study on "the relation of plants to carnotite deposits in several districts of the Colorado Plateau...Basic geobotanical studies were made largely in the Yellow Cat district, near Thompson, Grand County, Utah."

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.

"Between April 21, 1949, and August 20, 1955, the U.S. Geological Survey explored the southern part of the Uravan district for uranium-vanadium deposits and to appraise the uranium-vanadium reserves in the area."

Abstract: "Comparative data are presented on separations of microgram amounts of uranium from milligram amounts of various metal ions with Na2Co3-K2CO3, Na2CO3-K2CO3-H2O2, and Na2CO3-NaClO. The Na2CO3-K2CO3 separation procedure is applied to the analysis of shales, lignites, and monazites. This method will determine as little as 0.001 percent uranium in shales and lignites and 0.01 percent uranium in monazites."

Abstract: As a part of continuous geologic and geophysical investigations at the Nevada Test Site, gamma-radioactivity measurements are being made in tunnels and drill holes to determine semiquantitatively the natural gamma radioactivity of geologic formations and the distribution of nuclear-explosion-produced radioisotopes.

The following report is preliminary in nature, discussing and analyzing traces of uranium in apatite and phosphorite.

This is a geological map of the Cane Spring quadrangle in Nye County, Nevada.

Map of the Mine Mountain Quadrangle in Nye County, Nevada.

Report discussing the geology and ore deposits of the Placerville area of San Miguel County, Colorado. "This report is an abstract of a paper with the same title that is planned for publication as a Geological Survey bulletin."

Report discussing a geological study that took place from January 1952 - April 1953 to determine the habits, ore controls, and possible origins of the uranium deposit of the Shinarump No. 1 mine, which is located approximately 12 miles northwest of Moab, Utah.

A report regarding the geology of the Shinrump No. 1 Uranium Mine, Seven Mile Canyon Area, Grand County, Utah. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

This is part of a series of reports that cover the study of 202 sites throughout the world providing data on rock and soil to a depth of 100 feet and on climatic conditions. This volume discusses locations in Europe, the U.S.S.R. and Southwest Asia.

From abstract: "Laboratory studies of uraniferous coal were started in connection with explorational core drilling in 1951. The cores were described and used for coal analyses, for determinations of uranium and other mineral elements, and for microscopical investigations. Results of microscopical studies are feature in this report."

Report discussing the various resources of lithium for the United States and Canada. The report contains information regarding the geology of lithium in the U.S. and Canada, lithium reserves and resources, and the future of the lithium mining industry.

A report about the vanadium-uranium deposit at the Rifle and Garfield mines which lies in the Wingate sandstone and the overlying Entrada sandstone.

A report about an improved transmission fluorimeter for use in the determinaton of uranium which consists of a line-operated, low-voltage d-c supply, powering a small 3-w ultraviolet lamp as a source of long wavelength ultraviolet radiation.

Report explaining a multiple cone sample splitter, which, in one operation, obtains representative sample fractions of 5-50 percent and increases time efficiency compared to conventional methods of sample splitting. Information regarding the machine's description, operation, and accuracy are given as well as a summary.