From transmittal letter: This report contains the results of radiometric examinations of 39 mines and prospects, and a detailed description of the properties examined.

From introduction: This report contains the results of a detailed geological and uranium deposits study made of the Monument Valley.

From abstract: Field work leading to this report was done by the U. S. Geological Survey for the Division of Raw Materials of the U. S. Atomic Energy Commission, Nearly 24 townships were mapped in the central part of the Great Divide Basin, Sweetwater County, Wyoming, Fourteen of these townships contain outcrops of uranium-bearing coal. Thirty coal beds were mapped, but only seven of them have uranium-bearing coal reserves as defined in this report.

A report about a geometry based on the reciprocal lattice concept and geometrical construction of Ewald needed for the interpretation of transmission electron-diffraction single-crystal patterns.

Report discussing the U.S. Geological Survey's investigation of uranium occurrences, which were discovered after submission of a sample containing 0.068 percent uranium, at Clinton, New Jersey. Information produced from sampling, mapping and radioactivity testing is included.

Report discussing the geology and numerous ore deposits of the Chicago Creek area in Clear Creek County, Colorado. Prior to this report, gold, silver, copper, lead, zinc, and uranium were produced from this area.

Report discussing a method for the volumetric estimation of the oil yield of oil-bearing shale. The method can be applied to both shale and phosphatic shale.

A report about a new quadrivalent vanadium oxide from the Peanut mine named Duttonite which has the formula VO(OH)2. The mineral occurs as crusts and coatings of pale-brown transparent platy crystals.

Report discussing the W. Wilson mine, which contained quartz, chalcedony, and silicified quartz monzonite. Pitchblende was deposited in the vein of the mine and subsequently oxidized and hydrated.

Report discussing the identification of hydrothermal uranothorite from fluorite breccias in Colorado and its comparison/contrasting with other uranothorites and thorites. A description of thorium halos in fluorite is given.

A report about the optical properties of rutherfordine.

Report discussing properties and uses of beryllium and beryl, an ore of beryllium produced as a by-product of mining in Colorado.

Report discussing the results of geological studies that have been conducted in the Clancy Creek in the Jefferson City Quadrangle of Jefferson County, Montana. The location is of interest due to the discovery of several radioactivity anomalies and secondary uranium minerals in the area.

Report outlining information regarding uranium and geology of uranium. Sections include geochemistry of uranium, influence of orogeny on concentration of uranium, types of uranium deposits, and general criteria for prospecting.

Report discussing a study in which "a suite of alkalic rocks from the Beemerville, NJ, intrusive body was separated and the percentages of their accessory minerals were determined."

Report discussing the U.S. Geological Survey's investigation for uraniferous coal in the central region of the Great Divide Basin of Sweetwater County, Wyoming.

Report discussing the thorium and rare-earth deposits that are found in a six-mile long belt of pre-Cambrian carbonate rocks associated with potash-rich igneous rocks of probable pre-Cambrian age in the Mountain Pass district of San Bernardino County, California.

Report discussing an exploratory drilling program in the Charles T. area and vicinity during the period from November 1947 and September 1949. "The purpose of the exploration was to discover new carnotite deposits to support milling operations on the Colorado Plateau, and to appraise the uranium and vanadium resources of the area explored."

Report discussing the geology of the Wood vein and East Calhoun mine areas of Gilpin County, Colorado.

Report summarizing the general geologic relations of some uranium deposits in the San Juan Basin, speculating on the origin and localization of some individual deposits and the entire SanJuan Basin mineral belt, and attempting to appraise the chances for discoveries of additional deposits.

Report discussing a comparison of three methods of sample splitting for grain counting: the microsplit, the cone splitter, and hand quartering.

Report discussing a study of uraniferous lignite collected from three coal beds from Harding County, South Dakota. The report contains information regarding the location and geologic setting of the coal, the materials studies, coal petrologic studies, and a discussion of results.

A report about spectrographic determination of lead in zircon and in some other minerals has been made by the U. S. Geological Survey to provide data in a study of the age of the rocks that contained these particular minerals. Overall, standard spectrographic procedures were applied, including the split-filter method for calibrating the photographic emulsion.

A report which investigates three different rock samples that have been contaminated through pulverization in heavy machinery.