John B. Townshend, R. V. O’Connell, L.Y. Torrence
1988, Open-File Report 88-300-C
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Publication Extents
Not all publications have extents, not all extents are completely accurateJohn B. Townshend, R. V. O’Connell, L.Y. Torrence
1988, Open-File Report 88-300-G
R.L. Stahl, K. K. Fitzgerald, T.E. Richards, P.D. Hayes
1988, Water Data Report IL-87-1
Denise A. Wiltshire, editor(s)
1988, Bulletin 1841
This compilation of short papers is intended to describe technical advances in the applied computer sciences. The aim of the series is to provide a forum for discussions on innovative uses of computing techniques in the earth sciences. Papers are presented on ( 1) an expert system to facilitate land...
M. A. Sabol, G. L. Turney, G.N. Ryals
1988, Water-Resources Investigations Report 87-4045
Gas Works Park, in Seattle, Washington, is located at the site of an abandon gasification plant on Lake Union. Wastes deposited during 50 years of plant operations (1906-1956) have extended the shore line 100 ft and left the park soil contaminated with a number of hazardous material. Soil contaminants include...
Debra K. Higley
1988, Open-File Report 88-527-B
H.D. Buckner, E.R. Carrillo, H.J. Davidson
1988, Water Data Report TX-87-2
No abstract available....
J.W. Ball, George A. Parks, J.L. Haas Jr., D. Kirk Nordstrom
1988, Open-File Report 88-489-B
M.S. Davenport
1988, Open-File Report 88-169
Water and bottom-sediment samples were collected from April 1986 to September 1987 at 19 sites in Guilford County and the City of Greensboro, North Carolina. Sampling locations included 13 stream sites, two lakes that supply City of Greensboro drinking water, two City of Greensboro finished drinking-water filtration plants, and two...
Gary I. Selner, Cole L. Smith, Richard B. Taylor
1988, Open-File Report 88-413-A
S. J. Grady, M. F. Weaver
1988, Water-Resources Investigations Report 87-4005
The stratified-drift aquifers that underlie 7.9 sq mi of the Potatuck and 12.7 sq mi of the Pomperaug River valley, CT, consist primarily of sand and gravel deposits up to 150 ft thick. Average horizontal hydraulic conductivity of the stratified drift ranges from 20 to 170 ft/day, and groundwater flows...
R. Macdonald, R.L. Smith
1988, Transactions of the Royal Society of Edinburgh, Earth Sciences (79 ) 257-263
Field associations (voluminous ash flow deposits, rhyolitic stocks and dykes, ring complexes), evidence of repeated influxes of mafic magma, and thermal constraints indicate that many high-level silicic plutons (magma chambers) acted as open systems for considerable parts of their history. The long thermal lifetime, as well as other evidence from...
Thomas M. Soniat, Michael S. Brody
1988, Estuaries (11) 87-95
A habitat suitability index (HSI) model, developed for the American oyster,Crassostrea virginica, along the Gulf of Mexico, was field tested on 38 0.1-ha reef and nonreef sites in Galveston Bay, Texas. The HSI depends upon six (HSI1) or, optionally, eight (HSI2) variables. The six variables are percent of...
Byron K. Williams, Kimberly Titus
1988, Ecology (69) 1275-1285
A simulation study was undertaken to assess the sampling stability of the variable loadings in linear discriminant function analysis. A factorial design was used for the factors of multivariate dimensionality, dispersion structure, configuration of group means, and sample size. A total of 32 400 discriminant analyses were conducted, based on...
J. Muhlenbruck, K.M. Manci, K. Schneller-McDonald
1988, Report
No abstract available....
J. M. Motooka
1988, Applied Spectroscopy (42) 1293-1296
An atomic absorption extraction technique which is widely used in geochemical exploration for the determination of Ag, As, Au, Bi, Cd, Cu, Mo, Pb, Sb, and Zn has been modified and adapted to a simultaneous inductively coupled plasma-atomic emission instrument. The experimental and operating parameters are described for the preconcentration...
Galen B. Rathbun, Robert L. Brownell Jr., Katherine Ralls, John Engbring
1988, Marine Mammal Science (4) 265-270
The dugong, Dugong dugon, is widely distributed throughout the Indo-Pacific region in shallow tropical and subtropical waters (Nishiwaki and Marsh 1985).The International Union for Conservation of Nature and Natural Resources lists the species as vulnerable (Thornback and Jenkins 1982), as it is severely depleted or extinct in many parts of...
D.L. Forthman-Quick, E. F. Hill
1988, Journal of Wildlife Management (52) 233-237
Use of conditioned taste aversion (CTA) has been proposed to reduce consumption of California condor (Gymnogyps californianus) eggs by ravens (Corvus corax). Although landrin has induced aversions in ravens and other birds, no data were available on behavioral and physiological effects of landrin on condors, non-target birds that might consume...
Carl Markon
1988, Conference Paper, Proceedings, resource technology 88: International Symposium on Advanced Technology in Natural Resource Management
No abstract available....
W.C. Loper, T.E. Behrendt, W.P. Schaffstall
1988, Water Data Report PA-87-2
No abstract available....
Dora R. M. Passino, James P. Hickey, Anthony M. Frank
1988, Book, Proceedings of the QSAR: third international workshop on quantitative structure-activity relationships in environmental toxicology
In the Laurentian Great Lakes, more than 300 contaminants have been identified in fish, other biota, water, and sediment. Current hazard assessment of these chemicals by the National Fisheries Research Center-Great Lakes is based on their toxicity, occurrence in the environment, and source. Although scientists at the Center have tested...
P. E. Malin, J. A. Waller, Roger D. Borcherdt, E. Cranswick, Edward G. Jensen, J. Van Schaak
1988, Bulletin of the Seismological Society of America (78) 401-420
Direct evidence of site distortion of P- and S-wave microearthquake source spectra at Oroville, California, is presented. The data were gathered by placing vertical and three-component seismometers at 90 m intervals in a 500 m borehole through the Cleveland Hill normal fault, on which the 1975, ML = 5.7 Oroville earthquake took place. High-pressure,...
Fred J. Molz, Mark A. Widdowson
1988, Water Resources Research (24) 615-619
Current understanding of transport processes in aquifers is limited by lack of precise point chemical concentration measurements. Recently, however, some careful measurements of vertical chemical concentration profiles have been made at several locations around the world that appear to support a consistent picture concerning the persistence of large vertical concentration...
David G. Krementz, Michael J. Conroy, James E. Hines, H. Frankin Percival
1988, Journal of Wildlife Management (52) 214-226
Using data from 10 preseason and 10 winter major reference areas from 1950-83, the authors tested hypotheses regarding the effects of hunting on the survival and recovery rates of the American black duck (Anas rubripes). Although estimates of the proportion of total annual mortality due to hunting are low (35%...
1988, Earthquakes & Volcanoes (USGS) (20) 219-223
The Engineering Seismology Element of the USGS Earthquake Hazards Reduction Program is responsible for the coordination and operation of the National Strong Motion Network to collect, process, and disseminate earthquake strong-motion data; and, the development of improved methodologies to estimate and predict earthquake ground motion. Instrumental observations of strong ground...