A 250,000-year climatic record from Great Basin vein calcite: Implications for Milankovitch theory
Isaac J. Winograd, Tyler B. Coplen, Barney J. Szabo, Alan C. Riggs
1988, Science (242) 1275-1280
A continuous record of oxygen-18 (δ18O) variations in the continental hydrosphere during the middle-to-late Pleistocene has been obtained from a uranium-series dated calcitic vein in the southern Great Basin. The vein was deposited from ground water that moved through Devils Hole—an open fault zone at Ash Meadows, Nevada—between 50 and...
Nonparametric statistical methods for comparing two sites based on data with multiple nondetect limits
Steven P. Millard, Steven J. Deverel
1988, Water Resources Research (24) 2087-2098
As concern over the effects of trace amounts of pollutants has increased, so has the need for statistical methods that deal appropriately with data that include values reported as “less than” the detection limit. It has become increasingly common for water quality data to include censored values that reflect more...
Compositional zonation and cumulus processes in the Mount Mazama magma chamber, Crater Lake, Oregon
T. H. Druitt, Charles R. Bacon
1988, Earth and Environmental Science Transactions of The Royal Society of Edinburgh (79) 289-297
The 6845 ± 50 BP climactic eruption of Mount Mazama discharged 47 ± 9 km3 of vertically zoned calc-alkaline magma, affording a virtually complete section through the chamber. Evidence for two andesitic parents with different trace-element (particularly Sr) and water contents is preserved in the ejecta. Prior to eruption, a...
Microbial degradation of crude oil and some model hydrocarbons
Fu-Hsian Chang, N.N. Noben, Danny Brand, Marc F. Hult
1988, Conference Paper, Proceedings of the Second Technical Meeting, Cape Cod, Massachusetts, October 21-25, 1985: U.S. Geological Survey Open-File Report 86-481
Research on microbial degradation of crude oil in the shallow subsurface at a spill site near Bemidji, Minn. (fig. C-l), began in 1983 (Hull, 1984; Chang and Ehrlich, 1984). The rate and extent of crude oil and model hydrocarbon biodegradation by the indigenous microbial community was measured in the laboratory...
Microbial transformations of azaarenes in creosite-contaminated soil and ground water: Laboratory and field studies
W. E. Pereira, C.E. Rostad, D.M. Updegraff, J.L. Bennett
1988, Water Science and Technology (20) 17-23
Azaarenes or aromatic nitrogen heterocycles are a class of compounds found in wood-preservative wastes containing creosote. The fate and movement of these compounds in contaminated aquifers is not well understood. Water-quality studies in an aquifer contaminated with creosote near Pensacola, Florida, indicated that ground water was contaminated with several azaarenes...
Inventory of interbasin water transfer in Minnesota
L. C. Trotta
1988, Conference Paper
No abstract available....
Evaluation of aerial transect surveys for wintering American black ducks
Michael J. Conroy, James R. Goldsberry, James E. Hines, Daniel B. Stotts
1988, Journal of Wildlife Management (52) 694-703
We used an experimental aerial transect survey with stratified random sampling, to estimate the size of the population of wintering black ducks (Anas rubripes) in coastal New Jersey during 2 winters, and the coastal Atlantic Flyway (Me. to S.C.) during 4 years. Population estimates were precise (CV < 0.20) on...
Pesticide contamination and hatching success of waterbirds in Mississippi
Donald H. White, W. James Fleming, Keren L. Ensor
1988, Journal of Wildlife Management (52) 724-729
Waterfowl wintering on the Yazoo National Wildlife Refuge (NWR) were contaminated (ltoreq 4 ppm wet wt) with dichloro diphenyl trichloroethane (DDT) and 1,1-dichloro-2,2-bis-(p-chlorophenyl) ethylene (DDE), but residues were below levels known to affect waterfowl. Eggs of some nesting waterbirds contained higher than expected levels of DDE, especially those of green-backed...
Seismicity in South Carolina
Kaye M. Shedlock
1988, Seismological Research Letters (59) 165-171
The largest historical earthquake in South Carolina, and in the southeastern US, occurred in the Coastal Plain province, probably northwest of Charleston, in 1886. Locations for aftershocks associated with this earthquake, estimated using intensities based on newspaper accounts, defined a northwest trending zone about 250 km long that was at...
Recovery efficiency from single-well injection/recovery tests in a limestone aquifer of high secondary porosity
Vicente Quinones-Aponte
1988, Conference Paper, Proceedings of the American Society of Civil Engineers, Irrigation and Drainage Division, Artificial Recharge of Ground Water, International Symposium
The ecology of the soft-bottom benthos of San Francisco Bay: a community profile
Frederic H. Nichols, Mario M. Pamatmat
1988, U.S. Fish and Wildlife Service Biological Report 85(7.23)
This profile, part of a series of profiles concerning coastal habitats of the United States, is a detailed examination of the soft-bottom benthos of San Francisco Bay. A U.S. Fish and Wildlife Service and California Department of Fish and Game report (1979) entitled "Protection and Restoration of San Francisco Bay...
Conservation of North American rallids
William R. Eddleman, Fritz L. Knopf, Brooke Manley, Frederic A. Reid, Richard Zembal
1988, The Wilson Bulletin (100) 458-475
The Rallidae are a diverse group in their habitat selection, yet most North American species occur in or near wetlands As a consequence, most species are subject to habitat enhancement or perturbation from waterfowl management programs. The overall effects of these management programs relative to rallid conservation have...
Trace element residues in bluegills and common carp from the lower San Joaquin River, California, and its tributaries
Michael K. Saiki, Thomas W. May
1988, Science of the Total Environment (74) 199-217
Whole-body samples of bluegills (Lepomis macrochirus) and common carp (Cyprinus carpio) from the San Joaquin River and two tributaries (Merced River and Salt Slough) were analyzed to determine if the concentrations of any of nine elements were elevated as a result of exposure of the fish to agricultural subsurface (tile)...
The design and use of a hydraulic potentiomanometer for direct measurement of differences in hydraulic head between groundwater and surface water
Thomas C. Winter, James W. LaBaugh, Donald O. Rosenberry
1988, Limnology and Oceanography (33) 1209-1214
The hydraulic potentiomanometer described herein consists of a potentiometer connected to a manometer by a flexible tube. The device is used to directly measure the direction of seepage as well as the hydraulic-head difference between groundwater and surface water. The device works most effectively in sandy materials. For accurate measurements...
Cobalt in ferromanganese crusts as a monitor of hydrothermal discharge on the Pacific sea floor
F.T. Manheim, C.M. Lane-Bostwick
1988, Nature (335) 59-62
Ferromanganese oxide crusts, which accumulate on unsedimented surfaces in the open ocean1–6, derive most of their metal content from dissolved and particulate matter in ambient bottom water7,8, in proportions modified by the variable scavenging efficiency of the oxide phase for susceptible ions9. They differ in this respect from abyssal nodules,...
Pleistocene Proboscideans and Michigan salt deposits
A.J. Holman, L.M. Abraczinskas, D.B. Westjohn
1988, National Geographic Research (4) 4-5
No abstract available....
Effects of spatial orientation of multiple plate artificial substrates on invertebrate colonization
K. V. Slack, R. F. Ferreira, R.C. Averert, S.S. Kennelly
1988, Journal of the American Water Resources Association (24) 781-789
Jumbo multiple plate samplers were suspended in a river at 0.3 and 1 m depth in one of three orientations: interplate spaces closed to downwelling light and open to flow, open to light and flow, or open to light and closed to flow. Mean numbers of colonizing taxa and individuals...
Stochastic analysis of solute arrival time in heterogeneous porous media
Allen M. Shapiro, V.D. Cvetkovic
1988, Water Resources Research (24) 1711-1718
Longitudinal advective solute movement in heterogeneous porous media is investigated by considering the solute arrival time at a plane perpendicular to the mean fluid velocity. The moments of the solute arrival time are defined in terms of the stochastic properties of a statistically anisotropic hydraulic conductivity field. The flux‐averaged concentration...
Summer production of coho salmon stocked in Mount St. Helens streams 3-6 years after the 1980 eruption
P.A. Bisson, J.L. Nielsen, J.W. Ward
1988, Transactions of the American Fisheries Society (117) 322-335
We monitored habitat use and summer production of stocked underyearling coho salmon Oncorhynchus kisutch from 1983 to 1986 in three streams affected by the 1980 eruption of Mount St. Helens, Washington. Two streams were in the blast area and one was on a volcanic mudflow terrace, Midsummer water temperatures frequently exceeded presumed...
Status of dugongs in waters around Palau
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...
A new Lower Carboniferous tetrapod locality in Iowa
J.R. Bolt, R.M. McKay, B.J. Witzke, M.P. McAdams
1988, Nature (333) 768-770
The earliest tetrapods known are from two or three Upper Devonian1–3 and some 20 Lower Carboniferous localities in Scotland4 and North America5–8. Most sites yield few and fragmentary specimens; well-preserved and even partially articulated material is exceedingly rare. This report discusses a middle Lower Carboniferous site rich in amphibian and fish...
Problems with surface water models from a user's perspective
K. Thornton, Clair B. Stalnaker, K. Baun
1988, Book, Proceedings of the international symposium on water quality modeling of agricultural non-point sources
No abstract available....
Empirical estimates of body drag of large waterfowl and raptors
C.J. Pennycuick, H.H. Obrecht III, M.R. Fuller
1988, Journal of Experimental Biology (135) 253-264
Measurements of the body frontal area of some large living waterfowl (Anatidae) and raptors (Falconiformes) were found to vary with the two-thirds power of the body mass, with no distinction between the two groups. Wind tunnel measurements on frozen bodies gave drag coefficients ranging from 0·25 to 0·39, in the...
Comment on ''Hydroseismicity-A hypothesis for the role of water in the generation of intraplate seismicity''
Jon J. Major, Richard M. Iverson, John K. Costain, G. A. Bollinger, J. Alexander Speer
1988, Geology (16) 562-564
No abstract available. ...
The dissolution of quartz in dilute aqueous solutions of organic acids at 25°C
P.C. Bennett, M.E. Melcer, D. I. Siegel, J.P. Hassett
1988, Geochimica et Cosmochimica Acta (52) 1521-1530
The dissolution of quartz in dilute aqueous solutions of organic acids at 25° and standard pressure was investigated by the batch dissolution method. The bulk dissolution rate of quartz in 20 mmole/Kg citrate solutions at pH 7 was 8 to 10 times faster than that in pure water. After 1750...
