D.M. Leslie, C. L. Douglas
1979, Wildlife Monographs (66) 1-56
No abstract available at this time...
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Page 5736, results 143376 - 143400
Publication Extents
Not all publications have extents, not all extents are completely accurateG. L. Hoffman, S.L. Kazubski, A.J. Mitchell, C. E. Smith
1979, Journal of Fish Diseases (2) 153-157
No abstract available....
C. L. Douglas
1979, Ecology (60) 442-443
No abstract available at this time...
Dames & Moore
1979, Open-File Report 79-1399
No abstract available....
G. L. Hoffman
1979, Aquaculture Magazine (6) 40
G.H. Pettengill, P.G. Ford, W.E. Brown, W.M. Kaula, H. Masursky, E. Eliason, G.E. McGill
1979, Science (205) 90-93
Three large Venus surface features, identified previously in images obtained from Earth-based radar observations, are shown by the Pioneer Venus radar mapper to be elevated 5 to 10 kilometers above the surrounding terrain. Two of these features, one bright and the other dark, lie adjacent to each...
T. Hudson, James G. Smith, Raymond L. Elliott
1979, Canadian Journal of Earth Sciences (16) 1805-1822
A large porphyry molybdenum deposit (Quartz Hill deposit) was recently discovered in the heart of the Coast Range batholithic complex about 70 km east of Ketchikan, southeastern Alaska. Intrusive rocks associated with the mineral deposit form two composite epizonal to hypabyssal stocks and many dikes in country rocks. The stocks are...
Marshall E. Moss
1979, Water Resources Research (15) 1673-1676
Two preeminent considerations of data network design are the random nature of the hydrologic phenomena and the uses that will be made of the data. Information distilled from the data is usually measured in a parametric statistical sense, although the data user is more concerned with the integrated measure of...
Raymond P. Buland, J. Berger, F. Gilbert
1979, Nature (277) 358-362
The project for the International Deployment of Accelerometers (IDA) is intended to provide very low frequency seismic data for the study of Earth structure and source mechanisms. This article outlines preliminary results on attenuation and splitting derived from IDA recordings of a recent large earthquake. ?? 1979 Nature Publishing Group....
R.O. Fournier, R.W. Potter II
1979, Geochimica et Cosmochimica Acta (43) 1543-1550
Equations and graphs have been devised to correct for the adverse effects of magnesium upon the Na-K-Ca chemical geothermometer. Either the equations or graphs can be used to determine appropriate temperature corrections for given waters with calculated Na-K-Ca temperatures > 70°C and R < 50, where R =...
S.K. Croft, S. W. Kieffer, T.J. Ahrens
1979, Journal of Geophysical Research Solid Earth (84) 8023-8032
We produced a series of decimeter-sized impact craters in blocks of ice near 0°C and −70°C and in ice-saturated sand near −70°C as a preliminary investigation of cratering in materials analogous to those found on Mars and the outer solar system satellites. The projectiles used were standard 0.22 and 0.30...
Gary M. Fellers
1979, Animal Behaviour (27) 107-119
R.K. Gabrysch
1979, Open-File Report 79-693
This report consists of: (1) Four maps that present data on water-level changes during 1977-79 in the Chicot and Evangeline aquifers and; (2) one set of graphs that present data on the compaction of subsurface materials for 1973-79. During 1977-79, groundwater pumping decreased in Galveston County and southern Harris County,...
G. Migaki, D.M. Asher, H.W. Casey, Louis N. Locke, C.J. Gibbs, C. Gajdusek
1979, Journal of the American Veterinary Medical Association (175) 957-959
Reports of nephritis in chimpanzees are relatively rare, compared with those in other nonhuman primates. McClure and Guilloud reported chronic pyelonephritis in a 35-year-old female chimpanzee; Schmidt and Butler reported glomerulonephritis in an 11-year-old female chimpanzee, and Kim reported on a 12-year-old male with subacute interstitial nephritis in a chimpanzee...
Jack Rawson, E. S. Chitwood
1979, Texas Department of Water Resources Report 232
No abstract available....
Ronald S. Oremland
1979, Limnology and Oceanography (24) 1136-1141
When plankton samples were incubated anaerobically with a cysteine-sulfide reducing agent, pronounced methane evolution occurred. This activity was inhibited by air, CHCl3, C2H2, and 2-bromoethanesulfonic acid. Adding [14C]CO32− resulted in accumulation of [14C]CH4. Portions of the digestive tracts of three fishes were incubated in methanogenic media, and two of the samples...
J.E. Reed, Matthew E. Broom
1979, Open-File Report 79-685
A digital model of the Bayou Bartholomew aquifer-stream system in Arkansas was calibrated for the purpose of predicting hydrologic responses to stresses of water development. The simulated-time span for model calibration was from 1953 to 1970, during which time the system was stressed largely by ground- and surface-water diversions for...
J.K. Thompson
1979, Thesis
No abstract available....
W.E. Seyfried Jr., J. L. Bischoff
1979, Geochimica et Cosmochimica Acta (43) 1937-1947
Basaltic glass and diabase were reacted with seawater at 70°C at 1 bar and 150°C at 500 bars to determine fluid composition and alteration mineralogy. All experiments were performed at a water/ rock mass ratio of 10. The changes in seawater chemistry depended on temperature and crystallinity of the...
J. M. Thompson
1979, Environmental Geology (3) 13-21
Chemical analyses of 21 water samples from the Firehole and Gibbon Rivers, which combine to form the Madison River, gave arsenic and fluoride values above the Environmental Protection Agency Interim Primary Drinking Water maximum contaminant levels (0.05 mg/l arsenic and 2.0 mg/l fluoride). On 18 October, 1975, during a period...
Richard L. Phipps
1979, Ecological Modelling (7) 257-288
A computer program, SWAMP, was designed to simulate the effects of flood frequency and depth to water table on southern wetlands forest vegetation dynamics. By incorporating these hydrologic characteristics into the model, forest vegetation and vegetation dynamics can be simulated. The model, based on data from the White River National...
J.B. Corliss, J. Dymond, L.I. Gordon, J.M. Edmond, R. P. Von Herzen, Richard D. Ballard, K. Green, D. Williams, A. Bainbridge, K. Crane, T. H. Van Andel
1979, Science (203) 1073-1083
The submarine hydrothermal activity on and near the Galápagos Rift has been explored with the aid of the deep submersible Alvin. Analyses of water samples from hydrothermal vents reveal that hydrothermal activity provides significant or dominant sources and sinks for several components of seawater; studies of conductive and convective heat transfer...
J.L. Bada, E. Hoopes, D. Darling, G. Dungworth, H.J. Kessels, K.A. Kvenvolden, D.J. Blunt
1979, Earth and Planetary Science Letters (43) 265-268
Enantiomeric measurements for aspartic acid, glutamic acid, and alanine in twenty-one different fossil bone samples have been carried out by three different laboratories using different analytical methods. These inter-laboratory comparisons demonstrate that D/L aspartic acid measurements are highly reproducible, whereas the enantiomeric measurements...
P. J. Aruscavage, E.Y. Campbell
1979, Analytica Chimica Acta (109) 171-175
Silver is extracted from a 20% tartaric acid solution by using butyl acetate and diphenylthiourea, and the organic layer is analyzed directly by the graphite-furnace technique. The precisions is ca. 8% as estimated from multiple analysis of 13 standard rocks; there are no systematic errors. The detection limit is 2.4...
A. H. Sallenger Jr.
1979, Marine Geology (29) 23-37
Field experiments on beach-cusp formation were undertaken to document how the cuspate form develops and to test the edge-wave hypothesis on the uniform spacing of cusps. These involved observations of cusps forming from an initially plane foreshore. The cuspate form was observed to be a product of swash modification of an...