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Page 6601, results 165001 - 165025

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The system Cu-Ag-S
Brian J. Skinner
1966, Economic Geology (61) 1-26
Compositions on the join Cu 2 S-Ag 2 S were studied with X-ray diffractometer heating stage. Low-temperature phases, which break down at temperatures between 67 degrees and 119 degrees C, are chalcocite, stromeyerite, Cu (sub O.8) Ag (sub 1.2) S, jalpaite, and acanthite. High-temperature phases, all cation-disordered, are hexagonal close-packed (high chalcocite), face-centered cubic...
Geology
Douglas M. Kinney
1966, Report, National atlas
No abstract available....
Plankton
Louella E. Cable
1966, Fishery Leaflet 583
No abstract available....
Disequilibrium of the 238U series in basalt
B.L.K. Somayajulu, M. Tatsumoto, J.N. Rosholt, R. J. Knight
1966, Earth and Planetary Science Letters (1) 387-391
Radioisotope analyses of basalt samples from Hawaii, Japan, and Iwo Jima show that: (1)234U and238U are virtually in radioactive equilibrium, (2)230Th exceeds equilibrium values in all these samples, (3)210Pb concentrations range from 10–200% of the equilibrium values and average 30% deficient, and...
Some aspects of breeding biology of the blue-winged teal
C.W. Dane
1966, The Auk (83) 389-402
The Blue-winged Teal (Anas discors) was the subject of one of the first publications dealing with the breeding biology of a species of North American waterfowl (Bennett, 1938). Recent studies of the nesting chronology, clutch size, and incubation period of this species include the works of Hochbaum (1944), Sowls (1955),...
Some blood chemistry values for five Chesapeake Bay area fishes
J. B. Hunn, P.F. Robinson
1966, Chesapeake Science (7) 173-175
Blood samples from gizzard shad,largemouth bass, white perch, pumpkinseed, and toadfish were analyzed for hemoglobin, total plasma protein, total plasma cholesterol, and ion concentrations of plasma sodium, potassium, and chloride. The hemoglobin concentration and total plasma cholesterol found in a given species seem to have positive correlation with the customary activity level...
Half-cell potentials of semiconductive simple binary sulphides in aqueous solution
M. Sato
1966, Electrochimica Acta (11) 361-373
Theoretical consideration of the charge-transfer mechanism operative in cells with an electrode of a semiconductive binary compound leads to the conclusion that the half-cell potential of such a compound is not only a function of ionic activities in the electrolytic solution, but also a function of the activities of the...
Chemical composition of phosphorites of the Phosphoria Formation
R. A. Gulbrandsen
1966, Geochimica et Cosmochimica Acta (30) 769-778
The chemical composition, both major and minor constituents, of 60 samples of phosphorite from the Phosphoria Formation was determined. Major constituents of the average phosphorite are, by weight per cent: SiO2, 11·9; Al2O3, 1·7; Fe2O3,1·1; MgO, 0·3; CaO, 44·0; Na2O, 0·6; K2O, 0·5; total H2O, 2·2; H2O−, 0·6; TiO2, 0·1;...
Rare earths in phosphorites: Geochemistry and potential recovery
Z. S. Altschuler, Sol Berman, Frank Cuttitta
1966, Open-File Report 66-3
Rare earths are but trace constituents of marine apatite. However, as millions of tones of such apatite are dissolved annually to make phosphoric acid, an opportunity exists for greatly increasing RE output as by-product of fertilizer production. New, complete, quantitative analysis of RE in representative apatite concentrates reveal that the...
Glacier mass budget measurements by hydrologic means
Wendell V. Tangborn
1966, Water Resources Research (2) 105-110
Ice storage changes for the South Cascade Glacier drainage basin were determined for the 1957–1964 period using basin runoff and precipitation measurements. Measurements indicate that evaporation and condensation are negligible compared with the large runoff and precipitation values. Runoff, measured by a stream discharge station, averaged 4.04 m/yr; precipitation, determined...
A sampler for coring sediments in rivers and estuaries
Edmund A. Prych, D. W. Hubbell
1966, Geological Society of America Bulletin (77) 549-556
A portable sampler developed to core submerged unconsolidated sediments collects cores that are 180 cm long and 4.75cm in diameter. The sampler is used from a 12-m boat in water depths up to 20 m and in flow velocities up to 1.5m per second to sample river and estuarine deposits...