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At least 127 records · Page 7Linked to original sources
USGS1959

Progress report on the investigations of bauxite deposits in the eastern part of Kauai, Hawaii

Investigations of bauxite deposits on Kauai by the U. S. Geological Survey in cooperation with the State of Hawaii were begun July 1, 1959. The investigations, as planned, are to consist of two phases, each of two years duration. The geological investigations of the bauxite and associated rocks in the field and a considerable amount of chemical and mineralogical work in the laboratory are planned for completion during the first two years of the project. During this phase, a geologist and an assistant will be working on Kauai and geologists, mineralogists, and chemists will be analyzing and studying samples of the bauxite in laboratories of the Geological Survey at Beltsville, Maryland, and Washington, D. C. The work during the second phase of the investigations will be carried on at Beltsville and Washington and will consist of completion of chemical and mineralogical investigations, compilation of maps, analysis of field and laboratory data including determination of the size and quality of the bauxite deposits in the eastern part of Kauai, mineralogical research on bauxite samples, and preparation of a final geological report.

Hawaii↗
USGS1962

Astrogeologic studies, semiannual progress report, February 26, 1961 to August 24, 1961

This report is the second semiannual report on a geological program of research conducted by the Geological Survey on behalf of the National Aeronautics and Space Administration. This research is being carried out under the Branch of Astrogeology. The long-range objectives of this program are to determine and map the stratigraphy and structure of the Moon's crust, to develop basic information on processes that have led to the present condition of the Moon's surface, and to work out the sequence of events in the geologic history recorded in the Moon's stratigraphy and structure. The work includes three closely interrelated areas of study: (1) investigation of the chemistry, petrography, and physical properties of extraterrestrial materials that may have been derived from the Moon, such as tektites, certain types of meteorites, and extraterrestrial dust; (2) experimental and field investigations of the mechanics and phenomena of impact of high-speed objects and of cratering; and (3) geologic mapping of the Moon. Immediate objectives for the fiscal year 1961 have included the preparation of geologic maps for the nominal target area for the Ranger Project of the National Aeronautics and Space Administration. Field and laboratory work on craters was directed toward developing data and an adequate theory for the integrated effect of meteoroid bombardment of the lunar surface. Special attention has been given to phase changes and solid state changes produced in rock by meteorite impact. American and Philippine tektites were the principal materials of possible lunar origin to receive detailed petrographic and chemical analysis.

Open-File Report↗
USGS1963

Astrogeologic studies, annual progress report, August 25, 1961 - August 24, 1962

This report, which covers the period August 25, 1961 to August 24, 1962, is the third of a series describing the program of research conducted by the U.S. Geological Survey on behalf of the National Aeronautics and Space Administration. The major long-range objectives of the program are to determine and map the stratigraphy and structure of the Moon's crust, to work out from these the sequence of events that led to the present condition of the Moon's surface, and to determine the processes by which these events took place. This report is presented in four parts with a separate summary. Part A: Lunar and planetary investigations (with map supplement). Geologic mapping of the Moon involves discrimination of the different materials exposed on the lunar surface and their assignment to geologic units, the determination of the photometric characteristics of these materials, delineation of the boundaries of the units and determination of their stratigraphic sequence. Part B: Crater investigations. These include field studies of terrestrial craters, hypervelocity impact experiments with rocks and other materials, studies of the behavior of rocks under high shock loads, and experimental and field studies of shock metamorphism in rocks. Part C: Cosmochemistry and petrography. Studies are being made of the chemical, petrographic, and physical properties of materials of extraterrestrial origin and of certain materials associated with terrestrial impact structures. The studies reported in Part C are concerned with tektites, terrestrial impactites, metallic spherules formed by the Meteor Crater impact event, and particles of possible cosmic origin. Part D: Studies for space flight program. These studies are undertaken to aid in the design of space flight experiments and the planning of space missions. The report that makes up Part D is an evaluation of the lunar flux of secondary particles derived from primary impact events on the lunar surface.

Open-File Report↗
USGS1964

Sedimentation and land use in Core Creek and Elk Run basins, Pennsylvania, 1954-60 (A progress report)

Analyses of data collected from two small basins in northern Pennsylvania during the period May 1954-September 1960 indicated a general relationship between changes in land use and land treatment and changes in suspended-sediment discharge from the basins. Extensive land use and land-treatment changes have taken place in the 12.2 square-mile Corey Creek study basin while such changes in the 10.2 square-mile Elk Run basin, which is adjacent to the northeast, have been relatively slight. Elk Run basin, which is topographically and hydrologically similar to Corey Creek basin, was used as an external control for the Corey Creek basin study.

Pennsylvania↗