This is a report on the aerial radiometric and magnetic reconnaissance survey of portions of Arizona and New Mexico in the Nogales Quadrangle.

From abstract: This report summarizes data of the uraniferous phosphate resources of the United States in detail and of the rest of the Free World more generally (Volume 1). It also evaluates the technical, economic, and environmental feasibility of production of uranium as a by-product, co-product, or single product from the uraniferous phosphate resources (Volume 2).

From deposit: Since 1975 a cooperative effort between the United States Department of Energy, United States Geological Survey, Geological Survey of Wyoming, the Geology Department, University of Wyoming, and various industry groups has resulted in the discovery of a series of uraniumthorium-and gold-bearing conglomerates in Late Archean and Early Proterozoic metasedimentary rocks of southern Wyoming. The mineral deposits were found by applying the time and strata bound model for the origin of uranium-bearing quartz-pebble conglomerates to favorable rock types within a geologic terrane known from prior regional mapping.

From abstract: This two-part report provides an essentially complete listing of radioactive occurrences in Colorado, with a comprehensive bibliography and bibliographic cross-indexes.

From summary: The procedure has been to search for areas in which nonpedogenic calcrete or gypcrete may have developed and where additional study or exploration might be justified.

From summary: As the principal objective of this study is to identify the most useful geologic characteristics, referred to as recognition criteria, and develop a method for their systematic use in resource studies and exploration, the important geologic observations on the uranium deposits of South Texas are briefly summarized below.

Introduction: This report presents engineering details, statistics, individual borehole histories, and geophysical logs of the nine holes drilled in the Great Divide Basin project during the 1981 drilling program. General information is presented regarding specific problems including weather and logistics. A separate geologic report is being prepared and will be available through the Bendix Field Engineering Corporation Technical Library in the near future.

From purpose of study: The Vallecito Conglomerate of the Needle Mountains area in southwestern Colorado was studied to evaluate the uranium potential of the unit and to test the applicability of the uraniferous Precambrian pebble-conglomerate exploration model in this area. The main thrust of this project is the Vallecito Conglomerate, but the Uncompahgre Formation, which is also in the Needle Mountains area has basal conglomerate that was investigated in a reconnaissance mode. Five specific objectives have been formulated to meet the overall purpose of this project, and these include: a) Determine the uranium distribution in the Vallecito Conglomerate and the basal conglomerate of the Uncompahgre Formation. b) Evaluate the uranium resources of the area to the degree possible utilizing available information and personal field investigations. c) Test the validity of application of the Precambrian quartz-pebble conglomerate model to this area. d) Recommend detailed studies and delineate drilling sites in the area to further evaluate the uranium resources if warranted. e) Recommend additional geologic, geophysical and geochemical studies which would bear directly on evaluation of uranium resources of the Precambrian pebble conglomerates in the Needle Mountains area.

From Introduction: The purpose of this report is to provide geologic and mineral resource background information useful in evaluating the uranium potential of the Raleigh 1* X 20 sheet.

From abstract: Twenty-two holes totaling 34,874 feet (10,629.6 meters) were rotary and core drilled on the northern and western flanks of the San Rafael Swell to test fluvial-lacustrine sequences of the Morrison Formation and the lower part of the Chinle Formation. The objective of the project was to obtain subsurface data so that improved uranium resource estimates could be determined for the area.

From introduction: This report is a status report to complete present contract obligations and is submitted in lieu of a Final Report. A Final Report is not feasible especially until complete analyses and statistical treatment of all of the 436 rock chip, 2 soil-rock and 90 water samples, a total of 528 samples submitted by the partners to Union Carbide, Oak Ridge, Tennessee, plus remaining analyses to be run by BFEC's Grand Junction Laboratory become available and other recommendations and necessities are done. See subsequent section of this report titled: "Recommendations For Work Needed to Complete Final Report". A Final Report may be prepared by the partners if supplemental funds for such work and for completion of the analyses and their statistical treatment ever become available.

From abstract: This report presents the results of the geochemical reconnaissance sampling in the Prescott quadrangle of the National Topographic Map Series (NTMS). Wet and dry sediment samples were collected throughout the 18,770 square kilometer arid-to-semiarid area and water samples at available streams, springs, and wells.

Data collected as part of a report on the Alliance Quadrangle in Nebraska and South Dakota including laboratory data on well water and stream sediments as well as field data.

Data tables containing results of nuetron activation analyses special chemistry, and emission spectra analyses made througout the hydrochemical and stream sediment reconnaissance of the Las Vegas quadrangle.

Data collected as part of the hydrogeological and stream sediment reconnaissance for the Sherman NTMS quadrangle including laboratory data on well water and stream sediments as well as field data.

From abstract: Results of a reconnaissance geochemical survey of the Plainview Quadrangle, Texas are reported. Field and laboratory data are presented for 969 groundwater samples and 571 stream sediment samples. Statistical and areal distributions of uranium and other possible uranium related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.

Data collected as part of a hydrogeochemical and stream sediment reconnaissance of Grand Island NTMS quadrangle in Kansas and Nebraska including laboratory data on well water and stream sediments as well as field data.

From abstract "As part of the Department of Energy (DoE) National Uranium Resource Evaluation Program, LKB Resources, Inc. has performed a rotary-wing reconnaissance high sensitivity radiometric and magnetic survey, encompassing several 1:250,000 quadrangles in southwestern Arizona and southeastern California. The surveyed area consisted of approximately 9300 line miles. The radiometric data was corrected and normalized to 400 feet terrain clearance. The data was identified as to rock type by correlating the data samples with existing geologic maps. Statistics defining the mean and standard deviation of each rock type are presented as listings in Volume I of this report. The departure of the data from its corresponding mean rock type is computed in terms of standard deviation units and is presented graphically as anomaly maps in Volume II and as computer listings in microfiche form in Volume I."

Preliminary copy of the Status Report on the Geologic Evaluation of Uranium in Plutonic Rocks, Northwestern Arizona.

Preliminary copy of the Status Report on the Geologic Evaluation of Uranium in Plutonic Rocks, Northwestern Arizona.

This is the first volume of a two-part report on the analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Tooele National Topographic Map NK-12-10. This volume gives the description of the program and results.

This report is one part of the second volume containing data on quadrangles of Texas, Oklahoma, Arkansas and Louisiana. This volume contains the detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation map, flight line and geologic base map, individual corrected profiles, computer map unit histograms and statistical tables for the Waco quadrangle in Texas.

A bibliographic index of the uranium raw materials reports issued by the Grand Junction Office of the U.S. of the Department of Energy (DOE) or its predecessor, the Energy Research and Development Administration (ERDA), and the U.S Atomic Energy Commission (AEC). The bibliography is in preliminary, unedited form.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Skagway, Atlin, Mt. Fairweather, Juneau, Taku River, Sitka, Port Alexander, Sumdum, Petersburg, Bradfield Canal, Craig, Dixon Entrance, Ketchikan, and Prince Rupert quadrangles including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.