Geologic, magnetic, and radiometric data collected at Dynamic Test Range - 1 (DTR-1) in Lake Mead, Arizona during an airborne survey for the purpose of developing a calibration standard for airborne gamma-ray detection systems in the National Uranium Resource Evaluation. The data includes concentrations of U, Th, and K in surface materials.

This report contains aerial gamma-ray and magnetic survey maps of the Lake Mead Dynamic Test Range.

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.

From synopsis: The discovery of the Rabbit Lake deposit, Saskatchewan, in 1968 and the East Alligator Rivers district, Northern Territory, Australia, in 1970 established the Lower-Middle Proterozoic veinlike-type deposits as one of the major types of uranium deposits. The term "veinlike" is used herein for this type of deposit in order to distinguish it from the classical magmatic-hydrothermal "vein" or "veintype" deposits. The veinlike deposits exhibit distinct geologic features and are now known to include the largest and the richest uranium deposits of the world. At present they account for between a quarter and a third of the Western World's proven uranium reserves.

From abstract: This study is directed toward evaluation of potential uraniferous quartz-pebble conglomerate occurrences or strata-bound uranium occurrences in the Laramie Range.

From foreword: This report is on the Arnold Mesa RARE II Further Planning Area, Yavapai County, Arizona.

Geologic, magnetic, and radiometric data collected at Dynamic Test Range - 1 (DTR-1) in Lake Mead, Arizona during an airborne survey for the purpose of developing a calibration standard for airborne gamma-ray detection systems in the National Uranium Resource Evaluation. The data includes concentrations of U, Th, and K in surface materials.

From abstract: A Principal Components Analysis (PCA) program has been written to aid in the interpretation of multivariate aerial radiometric data collected by the U.S. Department of Energy (DOE) under the National Uranium Resource Evaluation (NURE) program. The variations exhibited by these data have been reduced and classified into a number of linear combinations by using the PCA program. The PCA program then generates histograms and outlier maps of the individual variates. Black and white plots can be made on a Calcomp plotter by the application of follow-up programs. All programs referred to in this guide were written for a DEC-10. From this analysis a geologist may begin to interpret the data structure. Insight into geological processes underlying the data may be obtained.

Clear film copy of figure 8 meant to be laid over figure 7 in a report regarding computer techniques for analyzing aerial radiometric surveys. The figure outlines numbered segments (explained on p. 35/36 of the report) that highlight specific geologic features in the area highlighted by the report.

From introduction: The purpose of the Date Creek Supplement is to characterize the chemistry of sediment samples representing stream basins in which the Anderson Mine (and related prospects) occur. Once characterized, the chemistry is then used to delineate other areas within the Date Creek Basin where stream sediment chemistry resembles that of the Anderson Mine area.

From purpose: The purpose of this study was to examine the Precambrian conglomerates of central Arizona in sufficient depth to determine whether they contain any obvious uranium concentrations and whether their geologic environment of deposition was permissive or prohibitive of conditions favoring uranium concentration.

Appendices containing supplementary data including, geologic unit codes, grain size classification, sample summary tables, results print-outs, and site descriptions to accompany a report on uranium potential in Arizona.

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 introduction: This volume is presented as a companion to Volume I: The Geology and Uranium Potential of Precambrian Conglomerates in the Medicine Bow Mountains and Sierra Madre of southeastern Wyoming; and to Volume 3: Uranium Assessment for Precambrian Pebble Conglomerates in Southeastern Wyoming. In Volume 1, we summarized the geologic setting and geologic and geochemical characteristics of uranium-bearing conglomerates in Precambrian metasedimentary rocks of southeastern Wyoming. Volume 3 is a geostatistical resource estimate of U and Th in quartz-pebble conglomerates. This volume contains supporting geochemical data, lithologic logs from 48 drill holes in Precambrian rocks of the Medicine Bow Mountains and Sierra Madre, and drill site geologic maps and cross-sections from most of the holes.

Supplementary data containing geophysical logs to accompany an engineering report on the McDermitt Caladera Drilling Project in Nevada and Oregon.

Introduction: This report presents engineering details, statistics, individual borehole histories, and geophysical logs of the eleven holes drilled in the McDermitt caldera 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 introduction: The Geology Department of the University of Wyoming was asked to make a geostatistical assessment of the uranium endowment of these deposits as a part of the World Class core drilling operations of the Bendix Field Engineering Corporation. This study was to include (a) the development of optimum geostatistical methodology for assessing uranium endowment in areas of close drill control (1 mile or less centers) as well as in areas of distant drill control (5 mile centers or more), (.b) the implementation of this methodology in assessing the uranium resources of the pebble conglomerates in southeastern Wyoming, and (c) the determination of the overall geostatistical uncertainty of the resource estimates. In addition, methods were to be studied for projecting the assessments into new areas, including prediction of estimate uncertainty.

From introduction: The data presented here are reconnaissance data intended for use in identifying broad areas for further study. While care has been taken to provide reliable sampling and analyses, verification of individual analyses is beyond the scope of this report. The data should be viewed statistically because "one-point anomalies" may be misleading. Regional trends, however, should be reliable. This report is one of a series presenting data obtained by SRL reconnaissance.

Supplementary analytical data containing elemental concentration data in surface sediment samples and ground water samples, in addition to areal distribution maps, histograms, and cumulative frequency plots. Also included is site location data for surface and ground water samples, and a user's guide. This data accompanies a report on hydrogeochemical and stream sediment reconnaissance of the Baker 1° x 2° NTMS Area, Oregon and Idaho.

From abstract: This abbreviated data report presents results of ground water and stream/surface sediment reconnaissance in the National Topographic Map Series (NTMS) Needles 1' x 2 quadrangle. Surface sediment samples were collected at 1672 sites, at a target sampling density of one site per 13 square kilometers (five square miles). Ground water samples were collected at 49 sites. Neutron activation analysis (NAA) results are given for uranium and 16 other elements in sediments, and for uranium and 9 other elements in ground water. Mass spectrometry results are given for helium in ground water. Field measurements and observations are reported for each site. Analytical data and field measurements are presented in tables and maps.

Supplementary data containing tabulated elemental concentration data in surface sediment and ground water samples in addition to areal distribution maps, histograms, and cumulative frequency plots. Also included is sample site location data for surface and ground water samples and a user's guide. This data accompanies a report on hydrogeochemical and stream sediment reconnaissance in California and Arizona.

Abstract: Field and laboratory data are presented for 161 water samples and 235 sediment samples from the Douglas Quadrangle, Arizona; New Mexico. Uranium values have been reported by Los Alamos National Laboratory in Report GJBX-69(78). The samples were collected by Los Alamos National Laboratory; laboratory analysis and data reporting were performed by Uranium Resource Evaluation Project at Oak Ridge, Tennessee.

Data collected as part of the Douglas Quadrangle in Arizona including laboratory and field data on waters and sediments.

From abstract: Results of a reconnaissance geochemical survey of the Lincoln Quadrangle are reported. Field and laboratory data are presented for 577 groundwater and 754 stream sediment samples. Statistical and areal distributions of uranium and 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.