The following report covers investigation work done on the distribution of thick deposits of salt that had occurred in the Paradox member of the Hermosa formation of Pennsylvanian age in an area nearly 12,000 square miles of southwestern Colorado and southeastern Utah.

A report regarding the distribution and thickness of salt in the paradox basin of southeastern colorado and southeastern Utah. This report concerns work done on behalf of the Division of research of the U.S. Atomic Energy Commission.

Report discussing uranium deposits containing carnotite in the southern Black Hills near Edgemont, Fall River County, South Dakota.

From Abstract: "The mineral constituents of churn drill cuttings from a well through the Bone Valley formation and into the Hawthorn formation were determined. The weight percent of each mineral is given, as well as a description of the samples and the methods used."

A report regarding the appraisal of the accuracy of the U.S. Geological Survey of ore reserve estimates for uranium-vanadium deposits on the Colorado Plateau. This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

Abstract: Several radioactive deposits were found as a result of reconnaissance in the Gold Hill mining area, Boulder County, Colo. The ore deposits of the area have been worked chiefly for gold. All ore shipped has come from fissure veins, most of which are gold telluride veins. There are, however, some important sulfide veins which show a vague zonal distribution of pyritic gold ores and silverlead ores. The results of this reconnaissance suggest a possible relationship of the radioactive deposits to this indistinct sulfide zoning; however, the zoning is so obscure that its practical application to prospecting for uranium is of doubtful value at the present time. Pitchblende, torbernite, metatorbernite, and schroeckingerite have been identified in specimens from the area; however, no uranium minerals have yet been identified from most of the radioactive deposits, and the uraniferous material present is probably in disseminated small particles. Although selected samples from several localities assay 0.10 percent uranium or more, the known deposits are small and probably are not of immediate economic importance

Report discussing a series of geological investigations of the Wet Mountains in Custer County, Colorado, including reconnaissance for thorium and detailed topographical mapping of the area. The investigations took place from 1950-1952.

The following report describes the study of the hydrous uranium-molybdenum mineral umohoite discovered in the Lucky Mc mine, Wyoming.

Report discussing field work done between 1947 and 1951 for a reconnaissance radiometric survey of the Garfield and Taylor Park quadrangles of the Sawatch Range in Chaffee and Gunnison Counties of west-central Colorado.

Report discussing a geological examination for radioactive materials in an area of about 5 square miles near Montezuma, Colorado during the fall of 1952.

"This report briefly describes the [Urvanian Mineral Belt] and outlines the geologic evidence supporting its concept. General plans for continuous exploration of this belt, and preliminary prediction of the total amount of carnotite-bearing rocks that might be in one unexplored area, are also presented"

A report about carnotite-bearing sandstone and clay which has been found in the Chadron formation of the White River group of Oligocene age in the southern part of the Slim Buttes area, Harding County, S. Dakota. The mineralized sandstone contains as much as 0.23 percent uranium.

Discussing carnotite-bearing sandstone found in Cedar Canyon, in slim buttes, Harding County, South Dakota

A report about drill holes in uranium in the Todilto limestone of Late Jurassic age near New Mexico which does not yield duplicate gamma-ray logs when probed at different times.

Report discussing an investigation of radioactivity occurrences, mostly caused by thorium in thorite and monazite, in various parts of southeastern Alaska. The geology and structural qualities of these radioactive areas are discussed.

A report regarding a reconnaissance for radioactive deposits in southeastern Alaska, 1952. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

A report about the uranium content of the Sharon Springs member of the Pierre shale in South Dakota and northeastern Nebraska.

Discussing uranium in the Sharon Springs Member of the Pierre Shale in South Dakota and Northeastern Nebraska

The following report studies a rare-earth deposit in the Scrub Oaks iron mine, Morris County, New Jersey, that was mapped and sampled in the 1955.

Discussing a radioactive rare-earth deposit at the Scrub Oaks Mine, in Norris County, New Jersey

Abstract: A suite of 50 rock specimens, collected by the 1947 Washburn Mount McKinley Expedition, was scanned radiometrically. The maximum radioactivity observed in any one of the specimens was about twice background. Radiometric analyses of the most radioactive samples show that a sample of vein quartz coated with manganese oxide contains 0.009 percent equivalent uranium and that the maximum equivalent uranium content of granitic rock types is .004 percent. The radioactivity of the manganese-stained quartz is probably due to traces of uranium in the manganese mineral, whereas that of the granitic rocks is due to radioactive accessory minerals.

Report discussing a study in which a suite of 50 rock specimens collected by the 1947 Washburn Mount McKinley Expedition was scanned radiometrically.

This report describes the distribution of geologic features that may be used as geologic guides to carnotite deposits, sedimentary trends of the ore-bearing sandstone, and regional structures within and adjacent to the Urvan mineral belt in the Urvan and Gateway mining districts, Montrose and Mesa Counties, Colorado.

A report about seven rock samples collected by a U.S. Geological Survey geologist in the Russian Mountains in 1944 which have proved to be somewhat radioactive.