A report about thermodynamic properties of several minerals which have been constructed in a form convenient for calculation of chemical equilibria of minerals and of problems related to the heat content of rocks.

The following report covers the effects of the Rainier, Logan, and Blanca explosions on tuff that were determined through observations and measurements on the surface and in drill holes and tunnels.

From introduction: This report is a summary of geologic information obtained by the USGS at Dolomite Hill, Nevada.

From introduction: This report summarizes the information obtained during preparation of the lithologic log of the core and presents results of chemical analyses of marble samples collected from surface near the drill hole. The report was prepared by the U.S. Geological Survey on behalf of the Albuquerque Operations Office, U.S. Atomic Energy Commission.

From introduction: This report summarizes existing subsurface data concerning the thickness, character, and structure of upper Permian evaporites in part of Eddy County, N. Mex. The area of particular interest lies in central eastern Eddy County between Project Gnome site, in the center of sec.

Abstract: "Thickness, grade, and depth data were obtained by analyzing gamma-ray logs and core samples from 56 diamond drill holes penetrating uranium deposits in the Colorado Plateau. The data from the two methods were compared to determine variations found in gamma-ray log interpretation and chemical and radiometric analyses of the drill core. Correlations within each parameter varied among the drilling areas analyzed. Gamma-ray interpretations of grade compared to chemical analyses were within the range of -10 to +25 percent. Most depth measurements determined by gamma-ray log interpretation compared to drill core measurement were within 0.5 percent. Results of the study indicate a need for better thickness definition in both gamma-ray logging and core scanning equipment."

A report about the Central City district and adjoining mining areas in the central part of the front range mineral belt which has supplied small quantities of uranium ore intermittently since the discovery of pitchblende at Central City in 1871.

Report discussing the progress made on a continuing geophysical program during the period from January to April, 1959. The purpose of the program was to determine the type and configuration of various rock units below the surface in areas of interest at the Nevada Test Site.

"This Progress report describes a part of a continuing geophysical program being conducted by the U.S. Geological Survey on behalf of the Albuquerque Operations Office, U.S. Atomic Energy Commission"

Photogeologic map marking topographic and geologic features of the Nash Quadrangle in Eddy County, New Mexico. Scale 1:24,000.

A report about the Lemhi Pass area in the Beaverhead Mountains, Lemhi County, Idaho, and Beaverhead County, Montana, which was undertaken to determine the area as a potential source of thorium.

From introduction: The "Granite" exploration hole was core drilled to determine the character of the igneous rocks from the surface to a depth of 1,200 feet and the degree of structural anisotropism of the rock within 200 feet of a point 950 feet below the surface. This report summarizes the data on the structure, chemistry, petrology and alteration of the rocks exposed at the surface in the immediate vicinity of the drill site and in the core.

Introduction: This report describes areas of granitic rocks suitable for underground nuclear tests within Federally-controlled land in the continental limits of the United States. This information was requested of the U. S. Geological Survey by the Albuquerque Operations Office of the U. S. Atomic Energy Commission, and was compiled during March 1959 by D. C. Alvord, W. J. Carr, P. M. Hanshaw, S. P. Kanizay, C. S. Robinson, R. W. Schnabel, J. A. Sharps, and C. T. Wrucke.

Report discussing the use of chemical concentrations of certain elements in uranium deposits of the Colorado Plateau as a guide for the size of the deposits.

A report regarding chemical composition as a guide to the size of uranium deposits in the Salt Wash member of the Morrison formation, Colorado Plateau

Report discussing a study of the distribution, volume, and lithologies of sedimentary rocks of the Colorado Plateau, and of the distribution of elements contained within these rocks.

The following is a semiannual progress report, preliminary in nature, covering work done in the period of December 1, 1958 to May 31, 1959.

From introduction: Approximately fifty radioactive deposits and nearly fifty properties not abnormally radioactive were examined during a geologic reconnaissance for radioactive minerals in Idaho, Washington, and western Montana during the period July 1952 -- June 1955. The most important uranium deposits are in or near granitic to quartz monzonitic intrusions of probable Cretaceous age in central and northern Idaho, westernmost Montana, and northeastern Washington. The purpose of these reports is to describe the geology of the areas so that the possibilities for the disposal of high-level radioactive fluid waste in deep wells can be ascertained.

From introduction: This report details the results of instrument recordings of a nuclear explosion where ground zero was near the top of Rainier Mesa.

Report discussing the coarsely crystalline autunite in granitic rock near Mt. Spokane, Washington. "This report is an abstract of a paper with the same title that is planned for publication in the American Mineralogist."

From introduction: Salt occurs at depths less than 500 feet in six salt domes in Texas and Louisiana. Underground mining operations are being carried out in each of these domes. The following notes have been prepared in an effort to furnish data regarding chemical composition and structure of the rock salt in the shallow deposits.

A report about a sample of uranium-bearing conglomerate from the Shinarump member of the Chinle formation in northern Arizona was disaggregated in an ultrasonic separator.

From introduction: This report includes a brief description of the stratigraphy and structure, and data on petrology, mineralogy, and chemical and physical properties of the rocks that are exposed in the U12b.01 tunnel of the U12b (Rainier) tunnel system.

A report regarding geological survey investigations in the U12b.03 and U12b.04 Tunnels, located at a Nevada test site.