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Page 5605, results 140101 - 140125

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Diatoms and stratigraphically significant silicoflagellates from the Atlantic Margin Coring Project and other Atlantic margin sites
W.H. Abbott
1980, Micropaleontology (26) 49-80
In 1976, 19 sites were cored along the U.S. Atlantic Continental Shelf and Slope by the Oceanographic Branch of the U.S. Geological Survey aboard the Glomar Conception. Only 6 sites contained siliceous microfossil assemblages of sufficient quantity and quality for biostratigraphic study. Two of the sites, AMCOR (Atlantic Margin Coring Project) 6002...
The Klamath Mountains
W. P. Irwin
J. Aubouin, Richard J. Blanchet, C. Rangin, editor(s)
1980, Bulletin de la Société Géologique de France (22) 527-532
No abstract available....
Tectonic relations of carbon dioxide discharges and earthquakes
W. P. Irwin, Ivan Barnes
1980, Journal of Geophysical Research B: Solid Earth (85) 3115-3121
CO2‐rich springs occur worldwide along major zones of seismicity. They are mostly in young orogenic belts, but some are in areas of rifting continental platforms. Analyses of 13C content indicate that much of the CO2 is derived from the mantle and that other important sources are the metamorphism of marine carbonate‐bearing sedimentary...
Lateral trends and vertical sequences in estuarine sediments, Willapa Bay, Washington
H. Edward Clifton, L. Phillips
1980, Conference Paper
Willapa Bay is a sizable estuary on the southern coast of Washington- Relatively unmodified in a geologic sense by human activity the bay provides an excellent example of modern depositional facies in an estuarine setting. Studies of these deposits indicate that consistent lateral trends exist in sediment texture and sedimentary...
Hydrology comes of age: Impact of the International Hydrological Decade
R. L. Nace
1980, Eos, Transactions, American Geophysical Union (61) 1241-1241
The IHD (International Hydrological Decade), 1965 to 1974, was conceived as a concerted international effort to bring into focus the badly fragmented subdiscipline of hydrology, to evolve a global perspective on water, and to provide global information on water. Until the last decade or so, hydrology was a laggard science....
Uranium in secondary silica: A possible exploration guide
Robert A. Zielinski
1980, Economic Geology (75) 592-602
Study of uraniferous silica precipitates in the Shirley Basin, Wyoming, identified areas where ancient uraniferous ground water once ponded. Chalcedony collected from and directly beneath thick accumulations of rhyolite ash contain as much as 250 ppm uranium in a pre-ash topographic low and lesser concentrations (10 to 160 ppm) elsewhere....
Research on interactive genetic-geological models to evaluate favourability for undiscovered uranium resources
W.I. Finch, H.C. Granger, R.D. Lupe, R.B. McCammon
1980, Conference Paper, Uranium Evaluation and Mining Techniques: Proceedings of a Symposium Held in Buenos Aires, Argentina, 1–4 October 1979
Current methods of evaluating favourability for undiscovered uranium resources are unduly subjective, quite possibly inconsistent and, as a consequence, of questionable reliability. This research is aimed at reducing the subjectivity and increasing the reliability by designing an improved method that depends largely on geological data and their statistical frequency of...
The effect of band loss on estimates of annual survival
Louis J. Nelson, David R. Anderson, Kenneth P. Burnham
1980, Journal of Field Ornithology (51) 30-38
Banding has proven to be a useful technique in the study of population dynamics of avian species. However, band loss has long been recognized as a potential problem, (Hickey, 1952; Ludwig, 1967). Recently, Brownie et al. (1978) presented 14 models based on an array of explicit assumptions for...
Roosting, social organization and the annual cycle in a Kenya population of the bat Pipistrellus nanus
Thomas J. O'Shea
1980, Ethology (53) 171-195
The tiny (3.1–3.8 g) vespcrtilionid bat Pipistrellus nanus was studied in Kenya palm-thatched roofs from May 1973 to July 1974. Roosting social organization and related activities and behavior are described. ♂♂ held diurnal roosting territories where ♀♀ gathered in small and compositionally labile groups, attracted to the most vocal ♂♂....
Rates of volcanic activity along the southwest rift zone of Mauna Loa volcano, Hawaii
P. W. Lipman
1980, Bulletin Volcanologique (43) 703-725
Flow-by-flow mapping of the 65 km long subaerial part of the southwest rift zone and adjacent flanks of Mauna Loa Volcano, Hawaii, and about 50 new 14C dates on charcoal from beneath these flows permit estimates of rates of lava accumulation and volcanic growth over the past 10 000 years....
Calcite-impregnated defluidization structures in littoral sands of Mono Lake, California
P. Cloud, K. R. Lajoie
1980, Science (210) 1009-1012
Associated locally with well-known tufa mounds and towers of Mono Lake, California, are subvertical, concretionary sand structures through which fresh calcium-containing artesian waters moved up to sites of calcium carbonate precipitation beneath and adjacent to the lake. The structures include closely spaced calcite-impregnated columns, tubes, and other configurations with subcylindrical...
Geochemical evidence for water‐rock interaction along the San Andreas and Garlock Faults of California
James R. O’Neil, Thomas C. Hanks
1980, Journal of Geophysical Research (85) 6286-6292
Mesozoic granitoid rocks adjacent to the San Andreas fault in central California have retained their radiogenic Ar for the last 70 m.y. but have, generally, the highest 18O and H2O+ contents and the lowest D contents of all the granitoid rocks in California. The geographical coincidence of the D, 18O, and H2O+ patterns with...
Reproductive success of screech owls fed Aroclor® 1248
M. Anne Ross McLane, Donald L. Hughes
1980, Archives of Environmental Contamination and Toxicology (9) 661-665
Aroclor® 1248 was fed to captive screech owls (Otus asio) at the rate of three ppm in the diet to determine if reproductive effects such as fewer eggs per clutch, lower hatchability, malformation of the chicks, or higher mortality rates of chicks would appear in this raptorial species as they...
Gas bubble disease introduction
Duane H. Fickeisen, Mark J. Schneider, Gary Wedemeyer
1980, Transactions of the American Fisheries Society (109) 657-658
No abstract available....
Grooved terrain on Ganymede
Baerbel K. Lucchitta
1980, Icarus (44) 481-501
The icy crust of Ganymede comprises bright and dark areas. Investigation of Voyager 1 and 2 images has shown that bright terrain is grooved and separates dark polygons of cratered terrain. The grooved terrain contains alternating ridges and grooves in straight and curvilinear sets, which are locally interrupted by smooth...
Basin development along the Late Mesozoic and Cainozoic California Margin: A plate tectonic margin of subduction, oblique subduction and transform tectonics
David G. Howell, James K. Crouch, H. G. Greene, David S. McCulloch, J. G. Vedder
1980, Book chapter, Sedimentation in Oblique-Slip Mobile Zones
Along the Californian margin of the North American plate, the configuration and structural stability of late Mesozoic and Cainozoic basins are related to plate kinematics. Three tectonic regimes are recorded; orthogonal high-angle subduction, oblique low-angle subduction, and transform slip. During the first, regionally extensive forearc basins...