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.

The following is a semiannual progress report by the Geological Survey, preliminary in nature, covering the period of June 1 to November 30, 1958, on the subject of radioactive deposits.

Report discussing the investigation of possibly commercial amounts of thorium, niobium and rare earths which were found in veins of igneous rock areas in Laughlin Peak, New Mexico.

The following report is a synopsis of readily available information on the mineralogy, thickness and areal extent of soluble salt deposits in the Ochoa series of Permian age in southeastern New Mexico and western Texas. It's part of a more extensive investigation of salt being carried out by the U.S. Geological Survey in connection with its Investigation of Geologic Processes project on behalf of the Division of Research, U.S. Atomic Energy Commission.

"This report is a synopsis of readily available information on the mineralogy, thickness, and areal extent of soluble salt deposits in the Ochoa series of Permian age in southeastern New Mexico and western Texas."

From introduction: The information presented in this report is mainly a synthesis of material that has been published on various portions of the northeastern United States underlain by salt deposits.

Abstract: The thermal expansion of NaCl at high pressures and temperatures is estimated by extrapolating high temperature compressibility data to high pressures using finite strain theory. The thermal expansion is apparently negative at pressures over 50,000 bars at 300°C and at higher pressures at other temperatures.

From Introduction: "The primary purpose of this work was to summarize and bring up to date the information on beryl resources as gained from investigations during 1942-45, to examine in detail certain beryl-bearing pegmatites discovered and developed in recent years, and to study other pegmatites and groups of pegmatites known or suspected to contain beryl."

Abstract: "A dioctylphthalate has been isolated from a crude oil by means of adsorption column chromatography. The ester was identified by means of elemental analysis, refractive index, and its infrared adsorption spectrum. Saponification of the isolate and examination of the resultant alcohol by means of infrared adsorption spectra led to the conclusion that the ester is a branched chain dioctylphthalate. This is the first reported occurrence of an ester in crude petroleum."

A report which records the results of experiments dealing with the synthesis of carnotite and its alkali analogues. The work was primarily concerned with the preparation of single crystals suitable for detailed structural analysis, though some insight into the chemistry of the precipitation of carnotite was obtained.

The following bibliography and index supersedes a previous report, TEI-500, "U.S. Geological Survey Trace Elements and Related Reports Through 1954".

From introduction: This report details the results of a botanical prospecting method to determine the presence of uranium in the Circle Cliffs area.

The following report covers botanical prospecting methods used to search for uranium in the Circle Cliffs area, Garfield County, Utah during 1954 and 1955. This report presents analytical data and much geologic knowledge on the Circle Cliffs area.

A report about the routine fluorimetric procedure of the U.S. Geological Survey for the determination of uranium in the ash of plants

The following report covers an analytical procedure for the determination of uranium(IV) in apatite.

Map showing the bedrock geology of the Ralston Buttes Quadrangle, Jefferson County, Colorado along with an accompanying explanation.

From introduction: "This report is a statement of progress during the six-months period from June 1 to November 30, 1956, on investigations of radioactive materials in the United States and Alaska, undertaken by the U.S. Geological Survey under the sponsorship of the Division of Raw Materials and the Division of Research of the Atomic Energy Commission."

This report consists of a preliminary areal map and a brief description of the geology of the Ralston Buttes district.

The following report discusses studies in alterations in various kinds of igneous, metamorphic and sedimentary host-bearing rocks that contain uranium-bearing vein deposits in the United States. Most of these rocks have been altered in adjacent to uraniferous veins but some veins are enclosed in fresh, unaltered rock.

The following report covers investigations on the formation of chimney-like ore bodies in the shallow volcanic environments in order to explore the principles involved in the mechanism of transport and exchange of matter and energy in solid rock bodies under conditions of open systems.

From introduction: "This report is a statement of progress during the six-months period from June 1 to November 30, 1955 on investigations of radioactive materials in the United States and Alaska, undertaken by the U.S. Geological Survey under the sponsorship of the U.S. Atomic Energy Commission."

A report containing a statement of progress during the six-months period from June 1 to November 30, 1955 on investigations of radioactive materials in the United States and Alaska. The program aims to understand many factors involved in uranium geology.

Report discussing the mineralogy of the large uranium deposit at the Happy Jack mine. The deposit is located in beds of the Triassic Shinarump conglomerate that that fill a channel cut into the Moenkopi formation.