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Page 6276, results 156876 - 156900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Principal facts for gravity stations in the Bearpaw Mountains and vicinity, Montana
Donald L. Peterson, William L. Rambo
1972, Report
Observed gravity values, station locations, terrain corrections, and Bouguer gravity data are provided in tabular form for approximately 500 gravity observations in north-central Montana. These data were used in preparation of -- Peterson, Donald L. and Rambo, William L., 1967, Bouguer gravity anomaly map of the Bearpaw Mountains and vicinity,...
Water resources data for California, 1971; Part 2: Water quality records
Water Resources Division, U.S. Geological Survey
1972, Water Data Report CA-71-2
Water-resources data for the 1971 water year for California include records of data for the chemical and physical characteristics of surface water. The distribution, type, and number of stations in each river or drainage basin are shown in figure 1. A few pertinent stations in bordering States are also included....
Water resources inventory of Connecticut Part 6: Upper Housatonic River basin
Michael A. Cervione Jr., David L. Mazzaferro, Robert T. Melvin
1972, Connecticut Water Resources Bulletin 21
The upper Housatonic River basin report area has an abundant supply of water of generally good quality, which is derived from precipitation on the area and streams entering the area. Annual precipitation has averaged about 46 inches over a 30-year period. Of this, approximately 22 inches of water is returned...
Ground control requirements for precision processing of ERTS images
Thomas C. Burger
1972, Report
When the first Earth Resources Technology Satellite (ERTS-A) flies in 1972, NASA expects to receive and bulk-process 9,000 images a week. From this deluge of images, a few will be selected for precision processing; that is, about 5 percent will be further treated to improve the geometry of the scene,...
Surface-water investigations at Barrow, Alaska
Stanley H. Jones
1972, Report
The U.S. Public Health Service is currently developing plans for a long-term water supply and sewage treatment system for the village of Barrow, Alaska. To assist in planning, the U.S. Geological Survey was requested to initiate a cooperative streamflow data-collection program with the U.S. Public Health Service in June 1972...
A neutron activation analysis procedure for the determination of uranium, thorium and potassium in geologic samples
P. J. Aruscavage, Hugh T. Millard Jr.
1972, Journal of Radioanalytical Chemistry (11) 67-84
A neutron activation analysis procedure was developed for the determination of uranium, thorium and potassium in basic and ultrabasic rocks. The three elements are determined in the same 0.5-g sample following a 30-min irradiation in a thermal neutron flux of 2·1012 n·cm−2·sec−1. Following radiochemical separation, the nuclides239U...
Crust and mantle of the Gulf of Mexico
G. W. Moore
1972, Nature (238) 452-453
A SEEMING paradox has puzzled investigators of the crustal structure of the Gulf of Mexico since Ewing et al.1 calculated that a unit area of the rather thick crust in the gulf contains less mass than does a combination of the crust and enough of the upper mantle...
Microcrystalline sphalerite in resin globules suspended in Lake Kivu, East Africa
E.T. Degens, H. Okada, S. Honjo, J.C. Hathaway
1972, Mineralium Deposita (7) 1-12
The origin and chemical nature of micron-sized spheres found as suspended particles in Lake Kivu are examined. It can be shown that the hollow spheres, with a wall thickness of 500 Å, consist of a complex polymeric resinous material which has little functionality, except for hydroxyl...
The complex filling of alae crater, Kilauea Volcano, Hawaii
D. A. Swanson, W. A. Duffield, D. B. Jackson, D. W. Peterson
1972, Bulletin Volcanologique (36) 105-126
Since February 1969 Alae Crater, a 165-m-deep pit crater on the east rift of Kilauea Volcano, has been completely filled with about 18 million m3 of lava. The filling was episodic and complex. It involved 13 major periods of addition of lava to the crater, including spectacular...
The Apollo 17 landing site
Baerbel K. Lucchitta
1972, Nature (240) 259-260
Dr Lucchitta describes the geology of the Apollo 17 landing site in the Taurus-Littrow region of the Moon....
Search for plutonium-244 tracks in mountain pass bastnaesite
R.L. Fleischer, C. W. Naeser
1972, Nature (240) 465-465
WE have found that bastnaesite, a rare earth fluorocarbonate, from the Precambrian Mountain Pass deposit has an apparent Cretaceous fission track age, and hence does not reveal any anomalous fission tracks due to 244Pu....
Metamorphic assemblages and the direction of flow of metamorphic fluids in four instances of serpentinization
I. Barnes, John B. Rapp, J. R. O’Neil, R.A. Sheppard, A. J. Gude III
1972, Contributions to Mineralogy and Petrology (35) 263-276
Fluids related to Serpentinization are of at least three types. The first reported (Barnes and O'Neil, 1969) is a fluid of local meteoric origin, the chemical and thermodynamic properties of which are entirely controlled by olivine, orthopyroxene, brucite, and serpentine reactions. It is a Ca+2-OH−1 type and...
Subduction zones: Not relevant to present-day problems of waste disposal
E. A. Silver
1972, Nature (239) 330-331
SUBDUCTION zones are considered to be sites of disposal for vast areas of the Earth's surface1, while new surface is generated simultaneously at rise crests2. Bostrom and Sherif3 suggest that the world's industrial and domestic waste be dumped into subduction zones at deep sea trenches to allow...
Uranium-series dating of bone from the Isimila prehistoric site, Tanzania
F.C. Howell, G.H. Cole, M.R. Kleindienst, Barney J. Szabo, K.P. Oakley
1972, Nature (237) 51-52
EXCAVATIONS in 1957 and 1958 at the Isimila prehistoric site, in Tanzania1, sampled Acheulian occurrences in horizons at various levels in the Isimila Beds which are approximately 18 m thick. No significant breaks were observed in the sedimentary sequence, although there are numerous local hiatuses....