Abstract: The U.S. Geological Survey and the Corporación Venezolana de Guayana, Técnica Minera, C.A., conducted a cooperative mapping, exploration, and mineral resource estimation study in Venezuela from 1987 to 1992. The work was conducted in the Venezuelan Guayana Shield, an Archean to Early and Middle Proterozoic craton in southern and eastern Venezuela of almost 415,000 km2 that is mostly covered by jungle and savanna. Results obtained from this project contribute a new understanding of the geology and evolution of the Venezuelan Guayana Shield and the nature of its mineral occurrences. Personnel from Técnica Minera, C.A., were trained both in the field and in the office to conduct modern mineral exploration and geologic mapping and research programs. This five-year project was supported financially by the Corporación Venezolana de Guayana.

From Abstract: "This report summarizes data available on radioactive source materials in Los Estados Unidos de Venezuela accumulated by geologists of the Dirección Técnica de Geología and antecedent agencies prior to June 1951, and by the writers from June to November 1951."

A report about geologic names. It contains new names, old names, and changes to names.

From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.

From introduction: The present report summarizes the work carried out by the writers during 1952 on the problem of the uranium and minor element content of crude oils, natural asphalts, and petroleum extracts from petroliferous rocks and points out the relationship of minor element content to the origin of uranium deposits.

From introduction: In the following report the species of Foraminifera found in the Miocene of the Coastal Plain region of the eastern United States from Florida to Maryland are described and recorded. Numerous papers have been published on this region, some of which, however, are largely lists. Where the original material on which a paper was based has not been available for the present study, the records have been omitted, as it is very difficult to place the species in their proper position without seeing the actual specimens.

From introduction: This bibliography consists of annotations or abstracts of selected reports that pertain to the geology and occurrence of uranium in marine black shales and their metamorphic equivalents in the United States.

From introduction: "This report lists in numerical order U.S. Geological Survey Trace Elements Investigations and Memorandum Reports and supersedes a similar report issued in January 1952 (TEI-202)."

Report containing a topical index of U.S. Geological Survey trace elements with related reports, and a bibliography of U.S. Geological Survey Trace Elements with related reports.

This report used "annual peak-discharge records at fifty sites with five or more years of record" to determine individual site frequency curves. It includes several maps.

A report about nomenclature related to planets in the solar system. It contains detailed information about all names of topographic and albedo features on planets and satellites.

A report about which intends to determine the feasibility of conducting a material-balance assessment of petroleum within a sedimentary basin.

A report that focuses on the widespread decay of the surface rocks throughout the Appalachian region. It also focuses on the iron-stained sands which result from subaërial decay of crystalline rocks that agree in many ways with iron-stained sands forming certain geologic formations.

Report outlining information regarding uranium and geology of uranium. Sections include geochemistry of uranium, influence of orogeny on concentration of uranium, types of uranium deposits, and general criteria for prospecting.

A report discussing features of uranium that may be important in searching for and appraising deposits.

From introduction: "Part I is a numerical list of U.S. Geological Survey Trace Elements Investigations and Memorandum reports... Part II is a reference guide to Trace Elements and related reports that are available to the public... Part III is a finding list of states, areas, and subjects... Part IV is an author index."

From introduction: This report deals with the stratigraphic and ecologic significance of Foraminifera contained in a Tertiary sequence that crops out in the northern part of the Olympic Peninsula, Wash. (pl. 1). The work was done as a part of a program of geologic investigations for oil and gas possibilities conducted by the U.S. Geological Survey.

Introduction: Part 2 of the Systematic Report continues and concludes the study of the Mollusca from the Miocene and lower Pliocene of Virginia and North Carolina. One hundred and nineteen species, only a fraction of the known fauna, are reviewed and 66 additional species are described and figured. (See faunal chart, pp. 180-183.) The report upon the gastropods suffers from the same shortcomings obvious in the work on the pelecypods. Most of the material is from old collections made before the importance of the exact placing of the fossil locality both areally and vertically was recognized. Many of the citations of outcrops are vague and the sections generalized. Detailed field studies, particularly on the zoning of the Yorktown formation in southern Virginia and northern North Carolina, were begun later by Wendell P. Mansfield, but he died in the summer of 1939 before the completion of the work.

A report which provides information about American phosphate of lime deposits.

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 is a statement of progress during a six-month period and gives the principal unclassified information developed in that period for radioactive deposits in the United States.

This report is a statement of progress during a six-months period and gives the principal unclassified information developed in that period about investigations of radioactive materials in the United States and Alaska, and to a minor extent in foreign countries.

A paper containing both a bibliography and index. It shows the examined publications which each pertain to either paleontology, mineralogy, petrology, and geology.

A bibliography of reports that pertain to geology, mineralogy, chemistry of uranium or thorium, beryllium, lithium, and other rare elements of interest in the atomic energy program.