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Page 5148, results 128676 - 128700

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Not all publications have extents, not all extents are completely accurate
Earthquakes, May-June 1984
W. J. Person
1984, Earthquake Information Bulletin (USGS) (16) 228-230
No major earthquakes (7.0-7.9) occurred during this reporting period. earthquake-rated deaths were reported from Italy, the Dominican Republic, and Yugoslavia. A number of earthquakes occurred in the United States but none caused casualties or any significant damage. ...
Earthquakes, March-April 1984
W. J. Person
1984, Earthquake Information Bulletin (USGS) (16) 201-204
There were two major earthquakes (magnitude 7.0-7.9) during this reporting period, the first on March 19 in Uzbek SSR and the second in the Kuril Islands on March 24. Six deaths were reported during the period in Japan and Italy. In the United States a destructive earthquake occurred in central California...
Earthquakes, January-February 1984
W. J. Person
1984, Earthquake Information Bulletin (USGS) (16) 196-200
The first major earthquake (7.0-7.9) of the year struck in teh Solomon Islands in the PacificOcean on February 7, causing damage but no casualties. Deaths were reported in Sulawesi, Afghanistan, Pakistan, and Japan. There were no significant earthquakes in the United States during this reporting period. ...
Volatilization of ketones
R. E. Rathbun, D. Y. Tai
1984, Chemosphere (13) 1009-1023
Volatilization fluxes of seven ketones were measured over a range of temperatures. Gas-film coefficients were calculated from these volatilization fluxes and related to the gas-film coefficient for the evaporation of water. These relations, when combined with an equation for estimating the gas-film coefficient for evaporation of water from a canal,...
Comparison of nonlinear least squares and log transformation procedures for calculating volatilization coefficients
R. E. Rathbun, D. Y. Tai
1984, Chemosphere (13) 715-730
A nonlinear least squares procedure and a log transformation procedure for calculating first-order rate coefficients from experimental concentration-versus-time data were compared using laboratory measurements of the volatilization from water of 1,1,1-trichloroethane and 1,2-dichloroethane and the absorption of oxygen by water. Ratios of the nonlinear least squares to log transformation volatilization...
Sr isotopic variations along the Juan de Fuca Ridge
J. Eaby, D.A. Clague, J.R. Delaney
1984, Journal of Geophysical Research Solid Earth (89) 7883-7890
Sr isotopic ratios of 39 glass and microcrystalline basalt samples along the Juan de Fuca Ridge and 1 glass sample from Brown Bear Seamount are at the lower end of the range for normal mid-oceanic ridge basalt (MORB); the average 87Sr/86Sr ratio is 0.70249±0.00014 (2-σ). Although subtle variations exist along strike...
JOINT DEVELOPMENT OF A NATIONAL 1:100,000-SCALE DIGITAL CARTOGRAPHIC DATA BASE.
George M. Callahan, Frederick R. Broome
1984, Conference Paper, Technical Papers of the American Congress of Surveying and Mapping
The U. S. Geological Survey is beginning a major new program to create a nationwide digital cartographic data base from 1:100,000-scale maps by the end of the decade. This data base will supplement the currently available 1:2,000,000-scale national data base and the selected coverage at 1:24,000-scale. It is anticipated that...
Natural radioisotope210Pb as an indicator of origin of fine-grained sediment
C. W. Holmes
1984, Geo-Marine Letters (4) 203-206
Distribution of210Pb in sediments on the South Texas Continental Shelf is related to dynamics of the sedimentary transport processes. This radioisotope, whose concentration is time-dependent, defines three depocenters on the shelf. In addition, the variation of210Pb activity at the sediment/water interface delineates areas of terrigenous sedimentation from hemipelagic sedimentation. ??...
Fish cell lines: Characterization by isozyme analysis
B. C. Lidgerding, S.R. Phelps, W. B. Schill
1984, In Vitro (20) 167-171
The electrophoretic mobilities of isozymes from 16 enzyme systems were determined for nine fish cell lines. The relative migration of the malate dehydrogenase and 6-phosphoglucose dehydrogenase isozymes could be used together to distinguish between seven of the fish cell lines. Two cyprinid cell lines could not be distinguished from each...
Swainson's hawk nesting ecology in North Dakota
D.S. Gilmer, R. E. Stewart
1984, Condor (86) 12-18
Swainson's Hawks (Buteo swainsoni) were studied at 270 occupied nest sites in south-central North Dakota on a 1,259-km2 intensive study block and on a surrounding study area (16,519 km2) during three breeding seasons. On the intensive study block the number of occupied nests ranged from 46 in 1977 to 100...
Growth, reproduction, mortality, distribution, and biomass of freshwater drum in Lake Erie
Michael T. Bur
1984, Journal of Great Lakes Research (10) 48-58
Predominant age-groups in the Lake Erie freshwater drum Aplodinotus grunnienspopulation were 3, 4, and 5 as determined from gill net, trap net, bottom trawl, and midwater trawl samples. Age and growth calculations indicated that females grew faster than males. However, the length-weight relation did not differ between sexes and was described...
Permeability of fault gouge under confining pressure and shear stress
C.A. Morrow, L.Q. Shi, J.D. Byerlee
1984, Journal of Geophysical Research Solid Earth (89) 3193-3200
The permeability of both clay-rich and non-clay gouges, as well as several pure clays, was studied as a function of confining pressures from 5 to 200 MPa and shear strain to 10. Permeability ranged over four orders of magnitude, from around 10−22 to 10−18 m2 (1 darcy = 0.987 × 10−12 m2). The lowest...
A nonparametric trend test for seasonal data with serial dependence.
Robert M. Hirsch, James R. Slack
1984, Water Resources Research (20) 727-732
Statistical tests for monotonic trend in seasonal (e.g., monthly) hydrologic time series are commonly confounded by some of the following problems: nonnormal data, missing values, seasonality, censoring (detection limits), and serial dependence. An extension of the Mann-Kendall test for trend (designed for such data) is presented here. Because the test...
Persistence of Pasteurella multocida in Nebraska wetlands under epizootic conditions
J.I. Price, C. J. Brand
1984, Journal of Wildlife Diseases (20) 90-94
Gleason Basin, a marsh located in the western part of the Rainwater Basin in Nebraska, was selected during the 1980 spring waterfowl migration as a study site to determine the presence and persistence of virulent Pasteurella multocida. Avian cholera mortality in migratory waterfowl using the Basin increased during a 2-wk period...