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.

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 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.