Edward L. Flickinger
1981, Journal of Wildlife Management (45) 516-520
No abstract available. ...
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Publication Extents
Not all publications have extents, not all extents are completely accurateGeorge F. Gee, James W. Carpenter, Gary L. Hensler
1981, Journal of Wildlife Management (45) 463-483
Hematological and serum chemical constituents of blood were determined for 12 species, including 7 endangered species, of cranes, geese, raptors, and quail in captivity at the Patuxent Wildlife Research Center. Means, standard deviations, analysis of variance by species and sex, and a series of multiple comparisons of means were derived...
T.D. Bills, L. L. Marking, W.L. Mauck
1981, North American Journal of Fisheries Management (1) 200-203
The influence of background polychlorinated biphenyl (PCB) residues in rainbow trout (Salmo gairdneri) on the susceptibility of the fish to nine chemicals routinely or occasionally used in fishery operations was evaluated. Rainbow trout fry were divided into three groups: one was exposed to 0.01 ppb and another to 0.1 ppb...
Matthew Perry, G.H. Haas, James W. Carpenter
1981, Journal of Wildlife Management (45) 524-527
No abstract available. ...
Lawrence J. Blus, Charles J. Henny
1981, Murrelet (62) 16-18
The wintering range of the Great Blue Heron (Ardea herodias) extends further north than does that of any other member of the Ciconiiformes in North America. The northern limits of its range extend along the Pacific coast into southeastern Alaska, into Massachusetts on the Atlantic coast, and inland into...
D.Z. Piper, M.E. Williamson
1981, Marine Geology (40) 255-268
The minor-element composition of concentric layers within a single ferromanganese nodule from the eastern North Pacific exhibits strong correlations with Fe and Mn contents but appears to be independent of pronounced mineralogic variations. On the basis of these correlations, the elemental composition of individual layers apparently is controlled by the...
Emil Attanasi
1981, Energy Economics (3) 105-112
The purpose of this paper is to demonstrate how physical characteristics of deposits and results of past exploration enter future exploration decisions. A proposed decision model is presented that is consistent with a set of primitive probabilistic assumptions associated with deposit size distributions and discoverability. Analysis of optimal field exploration...
A. F. Cook, E.M. Shoemaker, B.A. Smith, G. E. Danielson, T. V. Johnson, S.P. Synnott
1981, Science (212) 1419-1422
A quadruple long exposure of Io in eclipse exhibits faint auroral emission from the eruptive plumes. No luminous spots in the vents, predicted by Gold, were observed. Heat from the interior of Io appears to be the predominant source of energy in the plumes....
Keith B. Ketner, Bruce R. Wardlaw
1981, Geology (9) 123-126
Permian and Triassic rocks near Quinn River Crossing, Humboldt County, Nevada, consist of four structural blocks: (1) a Lower Permian volcanic block; (2) a Permian(?) chert-arenite block; (3) a Lower Permian limestone block; and (4) a Permian and Triassic block. The contacts between the Permian volcanic block and the others...
Jon E. Keeley, B. Morton, B. Babcock, P. Castillo, B. Fish, E. Jerauld, B. Johnson, L. Landre, H. Lum, C. Miller, A. Parker, G. Van Steenwyk
1981, Oecologia (48) 332-333
In the leaves (but not corms) of the submerged aquatic Isoetes storkii malic acid concentration fluctuated from 22 μeg g FW-1 in the evening to 171 μeg g FW-1 in the morning. Associated with this was a change in titratable acidity of 152 μeg g FW-1 between morning and evening. 14C carbon was fixed in both...
Kenneth P. Ferguson Jr., Water Resources Division, U.S. Geological Survey, Saudi Arabia. Deputy Ministry for Mineral Resources
1981, Report
Saudi Arabia. Deputy Ministry for Mineral Resources, U.S. Geological Survey Saudi Arabia Mission
1981, Book
An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia....
J. V. Skinner, J.P. Beverage
1981, Report
No abstract available....
J. Thomas Nash, H.C. Granger, S.S. Adams
1981, Book chapter, Economic Geology, Seventy-Fifth Anniversary Volume
Uranium ore deposits occur in nearly every major rock type in the earth’s crust, and nearly all igneous, metamorphic, and sedimentary processes are capable of concentrating or dispersing uranium. However, only three types of deposits account for more than 70 percent of known Western World Reasonably Assured Resources (WWRAR): Precambrian...
Habib M. Merghelani, J.L. Irvine, U.S. Geological Survey Saudi Arabian Project, Saudi Arabia. Wizārat al-Batrūl wa-al-Tharwah al-Maʻdinīyah
1981, Book
David Bukry
1981, Initial Reports of the D.S.D.P. (63) 445-471
DSDP Leg 63 recovered Neogene coccoliths from south of Point Conception, California (Site 467), to north of Cabo Corrientes, Mexico (Site 473), as part of a traverse exploring the sedimentary record of the California Current along the Pacific Coast. A combination of temperate and tropical zonations were used to date...
David Bukry
1981, Initial Reports of the D.S.D.P. (63) 539-557
Quantitative study of middle and upper Miocene silicoflagellate assemblages from Pacific Coast Sites 467 and 469 to 472 has permitted identification of warm- and temperate-water biostratigraphic zones and the formulation of a model for relative paleotemperature values (Ts) on the basis of warm- and temperate-genera abundances. Geographic and temporal trends...
E.A. Shinn
1981, Journal of Sedimentary Petrology (51) 1-6
No abstract available....
W. James Fleming
1981, Archives of Environmental Contamination and Toxicology (10) 215-229
Brain and plasma cholinesterase (ChE) activities were determined for mallard ducklings (Anas platyrhynchos) exposed to dicrotophos and fenthion. Recovery rates of brain ChE did not differ between ducklings administered a single oral dose vs. a 2-week dietary dose of these organophosphates. Exposure to the organophosphates, followed by recovery of brain...
J. W. Niemitz, James L. Bischoff
1981, GSA Bulletin (92) 360-407
Closely spaced seismic and bathymetric surveys in the southern province of the Gulf of California reveal a tectonically active and structurally complex plate boundary. While heat-flow measurements, seismicity, large sediment accumulations on continental margins, and the presence of oceanic crust in deep basins strongly suggest divergent plate motion, magnetic anomaly...
J. Boreman, C.P. Goodyear, S.W. Christensen
1981, Transactions of the American Fisheries Society (110) 253-260
A model based on empirically derived age‐, time‐, and space‐variant entrainment susceptibility data may be used for estimating conditional entrainment mortality of aquatic organisms, particularly fish and shellfish, caused by operation of one or more power plants on an estuary. Model application requires knowledge of the morphometry of the water...
Sallenger Jr.
1981, Journal of Sedimentary Petrology (51) 261-264
Swash marks composed entirely of coarse sand are commonly found on coarse-sand beaches. These swash marks are 10 to 30 centimeters in width and a few millimeters to one centimeter in height. Previous observations, mostly on finer-sand beaches, indicate swash marks are seldom over a few millimeters in height and...
James M. Robb, J.C. Hampson Jr., D.C. Twichell
1981, Science (211) 935-937
The morphology of complex deposits of Pleistocene sediments covering the upper continental slope between Lindenkohl Canyon and South Toms Canyon results from both depositional and erosional processes. Small slump or slide features were detected primarily on the flanks of canyons or valleys and were observed to occur...
David Bukry
1981, Book chapter, The Deep Sea Drilling Project: A Decade of Progress
Coccoliths, as the dominant constituent of many Deep Sea Drilling Project cores, have provided the means of rapid and detailed biostratigraphic zonation to help guide ocean-sediment coring operations aboard D.V. Glomar Challenger. The Cenozoic has been divided into 50 to 60 zones and subzones which are most effective for middle- and low-...
David Bukry
1981, Book chapter, The Deep Sea Drilling Project: A Decade of Progress
Cosmopolitan and low-latitude silicoflagellate distributions determined from Deep Sea Drilling Project cores are synthesized into a sequence of 23 biostratigraphic zones and subzones for tropical and subtropical ocean areas. The stratigraphic relation of major morphologic changes in silicoflagellates from all areas is summarized. Two new Neogene subzones, one new Paleogene...