From purpose and scope: The purpose of this study is to identify and delineate areas favorable for the occurrence of uranium deposits "which could contain at least 100 metric tons of U308 with an average grade of not less than 100 ppm U308". The study was limited to depths of less than 1500 m (5000 ft). No attempt was made to make the economics of recovering uranium a criterion for selecting favorable areas, except that the uranium be in a "mineable configuration".

From purpose and scope: The Amarillo, Texas, Quadrangle of the National Topographic Map Series (NTMS), scale 1:125,000, was evaluated to identify and delineate geologic environments favorable for the occurrence of uranium. The study was conducted by the Bureau of Economic Geology (BEG) of the University of Texas at Austin, under subcontract to Bendix Field Engineering Corporation (BFEC), for the National Uranium Resource Evaluation (NURE) program, managed by the Grand Junction Office of the U.S. Department of Energy (DOE). The evaluation began March 31, 1978, and ended March 31, 1980. Time spent by the authors and other BEG personnel in literature search, field work, evaluation of data, and preparation of the final report totaled approximately six man-years.

From project objectives: The Sonora Pass region was identified by the U. S. Department of Energy (DOE) as a potential uranium resource area because of past uranium production at the Juniper Mine and reported high-grade occurrences in other buried fluvial channels which are Tertiary in age. The objective of the Sonora Pass drilling project was to obtain subsurface data that would increase the accuracy of uranium reserve estimates for the project area.

From Executive Summary: "This executive summary, and the more detailed documentation to follow, examine the factors of assessed resources and the relationship of these resources to national demand. The results are intended for the use of Government, industry, and other groups as input in planning, formulating policies, and making decisions on energy-related issues."

From objective and scope: The objective of this report us to provide a descriptive body of knowledge on Cordilleran metamorphic core complexes including their lithologic and structural characteristics, distribution within the Cordillera, and their evolutionary history and tectonic setting. We also examine the occurrence of uranium in the context of possibility for uranium concentration.

From introduction: The emanation method of uranium exploration consists of measuring the abundance of one or more uranium decay products at some distance from the orebody itself. The halo of decay products expands the exploration target and improves the chances of detection. This method assumes that indicator nuclides migrate away from the ore by some physio-chemical mechanism such as diffusion or solution in groundwater. The indicators must remain at detectable concentrations and be distinguishable from background levels. This study is concerned with gas-phase transport of Rn-222, Xe-133, and He-4 away from uranium ore deposits. The first of these indicator nuclides, Rn-222, is a member of the uranium series decay chain (Table 1) and has a 3.82 day half-life. The second, Xe-133,. is a spontaneous fission product which has a half-life of 5.26 days. Finally, He-4 is a stable nuclide created from alpha particles emitted by various members of the uranium, actinium, and thorium decay series.

Supplementary data containing information on geology, drill sites, and sample locations to accompany a report on geology and uranium favorability in Alpine and Tuolumne Counties, California. Scale 1:48,000

Supplementary data for the National Uranium Resource Evaluation containing potential resource estimates in the Colorado Plateau to accompany a report on uranium in the United States.

Supplementary data containing analyses of the way that radiogenic gases affect soil samples to accompany a modeling study on the use of gaseous RN-222, XE-133, and HE-4 for uranium exploration.

Appendices containing supplementary chemical analysis to accompany a report on U.S. uranium resources in the Amarillo Quadrangle, Texas.

Photographs taken during a project to study the geology of the Sonora Pass Region in California. An index describing the images is on page143/144 of the accompanying report.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the San Angelo National Topographic Map Sheet (NH 14-1). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Big Spring National Topographic Map Sheet (NI 14-10). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Hobbs National Topographic Map Sheet (NI 13-12). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Perryton National Topographic Map Sheet (NJ 14-10). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings. -- check/adjust details

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Sonora National Topographic Map Sheet (NH 14-4). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Woodward National Topographic Map Sheet (NJ 14-11). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Winchester National Topographic Map Sheet (NJ 16-9). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

Report documenting results of analysis for airborne gamma radiation and total magnetic field survey for the Evansville National Topographic Map Sheet (NJ 16-8). It includes data calculations and profiled data readings with a general description of the area and corresponding data readings.

From introduction: "This report summarizes the detailed airborne spectrometer survey performed in 1978 covering northern New Jersey and the adjacent south-eastern portion of New York State. The survey consisted of 191 traverses and 4 tie lines totaling 5,936 line miles."

This report is the fourth in a series of maps analyzing the Reading Prong Area. The data presented in this report focuses on the magnetic and ancillary stacked profiles.

This report is the fifth in a series of collections of maps studying the Reading Prong Area. These maps focus on the magnetic and ancillary stacked profile data.

This report is a collection of maps recording the gamma-ray and magnetic detail data in the Reading Prong Area.

This report contains radiometric multiple-parameter stacked profile data for the Reading Prong Area.