The objective of this project was to identify and delineated units and (or) facies that are favorable for uranium in the Upper Pennsylvanian and Lower Permian strata of north-central Texas and southwestern Oklahoma. Mapping of depositional systems in the subsurface was the main emphasis of the study.

This report presents results of studies made on cenozoic sedimentary rocks in the western Snake River basin of Idaho to determine their favorability for uranium resources.

The objective of the study was to evaluate the favorability for potential uranium resources in Tertiary and related strata. Past studies indicate that the Tertiary basins in southwestern Montana are worthy of further investigation because (1) several basins contain a thick sequence of continental sedimentary rocks, (2) several basins are near possible granitic source rocks that have known uranium occurrences, and (3) some of the Montana basins are geologically similar to basins in Wyoming that are host to important sandstone-type deposits. This study focuses on sedimentary rocks of Tertiary age, but includes some rocks of Late Cretaceous and Pleistocene ages. In some areas only a portion of the total Tertiary sedimentary section could be studied because of poor surface exposures and limited subsurface information.

Purpose and scope: The purpose of this study was to delineate new areas favorable for uranium exploration in the San Rafael Swell region of east-central Utah. Emphasis was placed on the sandstone and siltstone members of the lower Chinle Formation (Triassic) and on the Salt Wash and Brushy Basin Members of the Morrison Formation (Jurassic). The White Rim Sandstone (Permian) was also studied, but not extensively. This project began in January 1976 and was completed in March 1977. Field work was conducted during the five-month period from February through June 1976.

From summary: A preliminary geologic investigation was conducted to determine the uranium potential of the Triassic strata in the Dan River basin system (Dan River, Danville, and Davie County Triassic basins) of North Carolina and Virginia. The pre-Triassic Inner Piedmont basement rocks adjacent to the basins were investigated as potential sources of uranium. Outcrops of Triassic and basement rocks were examined and measured for surface radioactivity by scintillometer. Representative rock and saprolite samples were collected for laboratory analyses.

A report describing the results of a detailed hydrogeochemical survey directed by the Los Alamos Scientific Laboratory of well waters in parts of the Saint Johns and Socorro Quadrangles.

From introduction: This report describes work done in the Raton, New Mexico, National Topographic Map Series (NTMS) quadrangle (1:250 000 scale) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

From introduction: This report describes work done in the Aztec, New Mexico, National Topographic Map Series (NTMS) quadrangle (1:250 000 scale) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

Results of the Chinati Mountains project area of the detailed geochemical survey fro Trans-Pecos, Texas are reported.

Results of the Stillwell Mountains project area of the detailed geochemical survey for Trans-Pecos, Texas are reported.

Results of the Dryden project area of the detailed geochemical survey for Trans-Pecos, Texas are reported.

From introduction: This report describes work done in the Trinidad, Colorado, National Topographic Map Series (NTMS) quadrangle (US Geological Survey, 1955) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR).

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Idaho Falls quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.

First volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of two quadrangles in Texas including documentation about data collection and analysis.