Earthquakes, January-February 1981
W. J. Person
1981, Earthquake Information Bulletin (USGS) (13) 191-194
The first 2 months of the year were somewhat active, seismically speaking. Two major earthquakes (magnitude 7.0-7.9) occurred during the month of January, a magnitude 7.1 Japan on the 8th and a magntidue 7.1 in the Aleutian Islands on the 30th. Fatalities and damage were experienced in Irian Jaya (formerly...
Preliminary geologic map of the Wheeler Peak-Hondo Canyon area, Taos County, New Mexico
John Calvin Reed Jr., J. M. Robertson, Peter W. Lipman
1981, Open-File Report 81-1077
No abstract available....
Comparative hatchability of lake trout eggs differing in contaminant burden and incubation conditions
M. J. Mac, W.H. Berlin, D. V. Rottiers
1981, Technical Paper 105
In 1972, fertilized eggs of lake trout (Salvelinus namaycush) from the Marquette (Michigan) State Fish Hatchery (where levels of contaminants are relatively low) and eggs from lake trout collected in Michigan waters of Lake Michigan near Saugatuck and Charlevoix (where levels of PCB's and DDE are elevated) were incubated at...
Chronic effects of simazine on Daphnia pulex
K. M. Fitzmayer, M.J. Van Den Avyle, J. G. Geiger
1981, Conference Paper, ASB (Association of Southeastern Biologists) Bulletin
No abstract available at this time...
First documented cinnamon teal nesting in North Dakota produced hybrids
J. T. Lokemoen, D.E. Sharp
1981, The Wilson Bulletin (93) 403-405
Abstract has not been submitted...
Seismology program; California Division of Mines and Geology
R. W. Sherburne
1981, Earthquake Information Bulletin (USGS) (13) 65-68
The year 1980 marked the centennial of the California Division of Mines and Geology (CDMG) and a decade of the Division's involvement in seismology. Factors which contributed to the formation of a Seismology Group within CDMG included increased concerns for environmental and earthquake safety, interest in earthquake prediction, the 1971...
Determination of body composition, condition and migration timing of juvenile chum and Chinook salmon in the lower Skagit River, Washington
S.K. Davis
1981, Thesis
No abstract available ...
An alternative model for the development of the allochthonous southern Appalachian Piedmont
E-An Zen
1981, American Journal of Science (281) 1153-1163
No abstract available....
Observations on black-crowned night heron breeding success in a North Dakota marsh
R. J. Greenwood
1981, Canadian Field-Naturalist (95) 465-467
Storms and mammalian predation severely reduced production in a Black-crowned Night Heron (Nycticorax nycticorax) colony in two years and drought prevented nesting in two other years from 1976 to 1980. Maximum estimated production was 2.2 young per pair in 1978, the only year production was sufficient to maintain the population....
Waterfowl diseases - Changing perspectives for the future
Milton Friend
1981, Conference Paper, Proceedings of the fourth international waterfowl symposium
No abstract available....
Distribution and abundance of marine birds and mammals wintering in the Kodiak area of Alaska
D.J. Forsell, P.J. Gould
1981, Report
No abstract available ...
Aeromagnetic and radio echo ice-sounding measurements over the Dufek intrusion, Antarctica
John C. Behrendt, D.J. Drewry, E. Jankowski, M. S. Grim
1981, Journal of Geophysical Research Solid Earth (86) 3014-3020
A combined aeromagnetic and radio echo ice-sounding survey (4200 km of traverse) made in 1978 in Antarctica over the Dufek layered mafic intrusion of Jurassic age suggests a minimum area of about 50,000 km2, making it comparable in size with the Bushveld Complex of Africa. Comparisons of the magnetic and...
Reproduction and early life history of fishes in a cooling lake
D.W. Rondorf
1981, Thesis
No abstract available ...
Identification of kaolins and associated minerals in altered volcanic rocks by infrared spectroscopy
Graham R. Hunt, Robert B. Halley
1981, Clays and Clay Minerals (29) 76-78
Mid-infrared spectroscopy (2.5-50 /µm) has been extensively used to identify and characterize clays and associated minerals in rocks and soils, with particular emphasis on the 3-, 10-, and 20-/µm regions (Farmer and Russell, 1967; Farmer, 1968; White, 1971; Van der Marel and Beutelspacher, 1976). However, application of mid-infrared spectroscopy in...
Tertiary carbonate-dissolution cycles on the Sierra Leone Rise, eastern equatorial Atlantic Ocean
Walter E. Dean, James V. Gardner, P. Cepek
1981, Marine Geology (39) 81-101
Most of the Tertiary section on Sierra Leone Rise off northwest Africa consists of chalk, marl, and limestone that show cyclic alterations of clay-rich and clay-poor beds about 20–60 cm thick. On the basis of biostratigraphic accumulation rates, the cycles in Oligocene and Miocene chalk have periods which average about...
Correlation of natural gas content to iron species in the New Albany shale group
R.H. Shiley, R.M. Cluff, D. R. Dickerson, C.C. Hinckley, Gerard V. Smith, H. Twardowska, Mykola Saporoschenko
1981, Fuel (60) 732-738
Mössbauer parameters were obtained for four Illinois Basin shales and their corresponding < 2μm clay fractions from wells drilled through the New Albany Shale Group in Henderson, Tazewell, and Effingham counties in Illinois and Christian County in Kentucky. Off-gas analysis indicated that the Illinois cores were in an area of...
A precedent—Soviet maps add English
W. D. Carter
1981, Geotimes (26) 21-23
No abstract available....
Origin of chert grains and a halite- silcrete bed in the Cambrian and Ordovician Whitehall Formation of eastern New York State
D. M. Rubin, G.M. Friedman
1981, Journal of Sedimentary Petrology (51) 69-72
A chert bed in the Whitehall Formation (Cambrian and Ordovician) of eastern New York State is strikingly similar in petrography and inferred origin to Australian and South African silcretes. The chert in the Whitehall, like its Australian and South African counterparts, occurs along...
Seawater sulfate reduction and sulfur isotope fractionation in basaltic systems: interaction of seawater with fayalite and magnetite at 200–350°C
Wayne C. Shanks III, James L. Bischoff, Robert J. Rosenbauer
1981, Geochimica et Cosmochimica Acta (45) 1977-1995
Sulfate reduction during seawater reaction with fayalite and with magnetite was rapid at 350°C, producing equilibrium assemblages of talc-pyrite-hematite-magnetite at low water/rock ratios and talc-pyrite-hematite-anhydrite at higher water/rock ratios. At 250°C, seawater reacting with fayalite produced detectable amounts of dissolved H2S, but extent of reaction of solid phases was...
Stratigraphy of the Caloris basin, Mercury
J.F. McCauley, J. E. Guest, G. G. Schaber, N.J. Trask, R. Greeley
1981, Icarus (47) 184-202
Caloris basin, Mercury’s youngest large impact basin, is filled by volcanic plains that are spectrally distinct from surrounding material. Post-plains impact craters of a variety of sizes populate the basin interior, and the spectra of the material they have...
Matrix modification with silver for the electrothermal atomization of arsenic and selenium
R. F. Sanzolone, T. T. Chao
1981, Analytica Chimica Acta (128) 225-227
Silver as a matrix modifier is shown to improve the carbon-rod atomization of both arsenic and selenium for atomic absorption spectrometry. Compared to nickel, the efficiency of silver is greater for arsenic and about the same for selenium. Silver fulfils two functions in its reaction, namely stabilization during the ashing...
Map projections for satellite tracking.
J.P. Snyder
1981, Photogrammetric Engineering and Remote Sensing (47) 205-213
New map projections to be used for plotting successive satellite groundtracks show these tracks as straight lines. The map may be made conformal along any 2 parallels of latitude between the limits of latitude reached by the groundtrack, or the 'tracking limits'. If these parallels are equidistant from the Equator,...
Seismic evidence for an extensive gas-bearing layer at shallow depth, offshore from Prudhoe Bay, Alaska
G. Boucher, E. Reimnitz, E. Kempema
1981, Cold Regions Science and Technology (4) 63-71
High-resolution seismic reflection data, recorded offshore from Prudhoe Bay, Alaska, were processed digitally to determine the reflectivity structure of the uppermost layers of the seafloor. A prominent reflector, found at 27 m below the mud line (water depths 7-9 m), has a negative reflection coefficient greater than 0.5. The large...
Sterilization of sea lampreys (Petromyzon marinus) by immersion in an aqueous solution of bisazir
Lee H. Hanson
1981, Canadian Journal of Fisheries and Aquatic Sciences (38) 1285-1289
Groups of sea lamprey (Petromyzon marinus) eggs fertilized by males previously immersed in an aqueous solution of p,p-bis(1-aziridinyl)-N-methylphosphinothioic amide (bisazir) at concentrations of 10–100 mg/L produced fewer normal, live prolarvae after 15–17 d of incubation than did groups of eggs fertilized by normal males. Mortality of embryos or prolarvae was nearly 100% in...
Culture, feeding, and growth of alewives hatched in the laboratory
John W. Heinrich
1981, Progressive Fish-Culturist (43) 3-7
Alewives (Alosa pseudoharengus) were reared from the egg to the early juvenile life stage. The major obstacle to rearing alewives from the egg — providing an acceptable food that facilitates first feeding — was overcome by presenting a mixture of wild Zooplankton to the larvae twice daily, beginning on the...
