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Page 6306, results 157626 - 157650

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of the massive sulfide deposits at Jerome, Arizona; A reinterpretation
C.A. Anderson, J. Thomas Nash
1972, Economic Geology (67) 845-863
The massive sulfide deposits at Jerome, consisting largely of pyrite, chalcopyrite, and sphalerite, are concordant stratabound lenses in massive quartz-bearing crystal tuffs of Precambrian age and overlying bedded tuffaceous rocks. The crystal tuffs were eraplaced as submarine pyroclastic flows. The evidence permits the interpretation that the massive sulfide lenses are...
An approach to the design of statewide or regional ground water information systems
Thomas C. Winter
1972, Water Resources Research (8) 222-230
The design of water information or basic data systems must be flexible enough to provide information and data for a broad range of interests from national to local. The system must satisfy the need for information for accounting, surveillance, and areal synthesis purposes. The network is designed by identifying specific...
Suspended matter in surface waters of the northern Gulf of Mexico
Frank T. Manheim, J.C. Hathaway, Elazar Uchupi
1972, Limnology and Oceanography (17) 17-27
Analyses of about 200 surface water samples collected during late fall 1966 show that concentrations of suspended matter greater than 1 mg/liter were restricted to within a few kilometers off Florida, but extended more than 100 km off Louisiana and Texas. Suspensates from areas farther than 100 km from shore...
Lunar anorthosite 15415: Texture, mineralogy, and metamorphic history
O.B. James
1972, Science (175) 432-436
Lunar anorthosite 15415 consists almost entirely of anorthite (homogeneous anorthite 96.6 molecule percent), with accessory diopsidic augite and traces of hypersthene, ilmenite, and a silica mineral. The rock has had a complex metamorphic history. The texture reflects at least two episodes of shearing (followed by intense and partial recrystallization, respectively),...
Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results
H. Masursky, R. M. Batson, J.F. McCauley, L.A. Soderblom, R.L. Wildey, M. H. Carr, D.J. Milton, D.E. Wilhelms, B.A. Smith, T.B. Kirby, J.C. Robinson, C.B. Leovy, G.A. Briggs, T. C. Duxbury, C.H. Acton Jr., B. C. Murray, J.A. Cutts, R.P. Sharp, S. Smith, R.B. Leighton, C. Sagan, J. Veverka, M. Noland, J. Lederberg, E. Levinthal, James B. Pollack, J.T. Moore Jr., W.K. Hartmann, E.N. Shipley, G. De Vaucouleurs, M. E. Davies
1972, Science (175) 294-305
At orbit insertion on 14 November 1971 the Martian surface was largely obscured by a dust haze with an extinction optical depth that...
Borehole activation analysis by delayed and capture gamma rays using a 252Cf neutron source
R.M. Moxham, F. E. Senftle, G. R. Boynton
1972, Economic Geology (67) 579-591
Theoretical analysis and experimental comparison of the radiative capture and delayed gamma-ray activation techniques indicate the latter to be more efficient for the detection of copper, whereas the radiative capture method is preferable for nickel. A conservative lower detection limit for both copper and nickel is '-0.5%. Borehole spectra by...
Iron-rich basal sediments from the eastern equatorial pacific: Leg 16, deep sea drilling project
D.S. Cronan, T. H. Van Andel, G. Ross Heath, M.G. Dinkelman, R.H. Bennett, D. Bukry, S. Charleston, A. Kaneps, K.S. Rodolfo, R.S. Yeats
1972, Science (175) 61-63
Iron-rich sediments chemically similar to those forming at present on the crest of the East Pacific Rise have been found just above basement at widely separated drill sites in the eastern equatorial Pacific, including three sites of Leg 16 of the Deep Sea Drilling Project. These sediments were probably formed...
Annual water-resources review, White Sands Missile Range: 1971
R. R. Cruz
1972, Report
This report presents water-resource information that was collected at White Sands Missile Range during 1971 and early 1972 by personnel of the U.S. Geological Survey, Water Resources Division. Data on ground-water pumpage and resulting water-level fluctuation, chemical quality, percipitation, and surface-water runoff are summarized in the report. The data were...
Distribution and isotopic composition of uranium in lower Nueces River, Nueces Bay and Corpus Christi Bay, Texas
Charles W. Holmes, Elizabeth Ann Slade
1972, Gulf Coast Association of Geological Societies Transactions (22) 315-322
The uranium concentration and isotopic composition of water and suspended sediment from the Nueces River, Nueces Bay and Corpus Christi Bay were determined by alpha-spectroscopy. The average dissolved uranium concentration and radioactivity ratio (U234/U238) of Nueces River water were determined to be 2.44 µg/1 and 1.15 respectively. Water from a...
The EROS Data Center
Water Resources Division, U.S. Geological Survey
1972, Report
The EROS Data Center in Sioux Falls, South Dakota, is operated for the Earth Resources Observation Systems Program of the Department of the Interior by the Topographic Division of the Geological Survey to provide access to Earth Resources Technology Satellite (ERTS) imagery, USGS aerial photography, and NASA aircraft data for...
Acoustic-reflection profiles, eastern Greater Antilles: Leg 3, 1971 cruise, UNITEDGEO I
Louis E. Garrison
1972, Report
IntroductionAs part of a cooperative marine research program designated the Internataional Decade of Ocean Exploration (IDOE), the United states Geological Survey is participating in an investigation of the geologic framework and resource potential of continental margins and small ocean basins in the Gulf of Mexico, Caribbean Sea, and west African...
Acoustic-reflection profiles, Bay of Campeche: International Decade of Ocean Exploration, U.S. Geological Survey, Leg 1, 1971 cruise, UNITEDGEO I
George William Moore
1972, Report
IntroductionAs part of a cooperative marine research program designated the International Decade of Ocean Exploration (IDOE), the United States Geological Survey is participating in an investigation of the geologic framework and resource potential of continental margins and small ocean basins in the Gulf of Mexico, Caribbean Sea, and west African...