Cyclic variations in calcium carbonate and organic carbon in Miocene to Holocene sediments, Walvis Ridge, South Atlantic Ocean
Walter E. Dean, J. V. Gardner
1985, Book chapter, South Atlantic Paleoceanography
The entire upper Miocene to Holocene sedimentary sequence recovered in a hydraulic piston core at DSDP Site 532 on Walvis Ridge shows distinct cycles in amount of CaCO sub(3) that correlate with dark and light cycles of sediment color. The average periodicities of the carbonate cycles for the Quaternary, upper...
Sedimentation in a blast-zone lake at Mount St. Helens, Washington—Implications for varve formation
R.Y. Anderson, E.B. Nuhfer, Walter E. Dean
1985, Geology (13) 348-352
Sediment collected in traps in a newly formed lake in the blast-impact area at Mount St. Helens recorded a sediment yield that is about two orders of magnitude greater than for comparable basins with vegetation and similar precipitation. Most sediment was mobilized by storms and runoff at the onset of...
Marine geological and geophysical investigations in the Ross Sea, Antarctica
Alan K. Cooper, F.J. Davey
1985, Antarctic Journal of the United States (19) 80-82
No abstract available. ...
Speciation and stasis in marine Ostracoda: Climatic modulation of evolution
Thomas M. Cronin
1985, Science (227) 60-63
Morphologic and paleozoogeographic analysis of Cenozoic marine Ostracoda from the Atlantic, Caribbean, and Pacific indicates that climatic change modulates evolution by disrupting long-term stasis and catalyzing speciation during sustained, unidirectional climatic transitions and, conversely, by maintaining morphologic stasis during rapid, high-frequency climatic oscillations. In the middle Pliocene, 4 to 3...
Water resources of north-central Iowa
Robert Buchmiller, Gary Gaillot, P. J. Soenksen
1985, Iowa Geological Survey Water Atlas 7
One of man's fundamental needs is water. Modern man needs both a safe and dependable supply of water to maintain his present economic, industrial, and cultural level. In order to use this natural resource in the most efficient and beneficial manner, a basic knowledge and understanding of water sources, and...
Networks of ecological research areas
Monica Goigel Turner
1985, Report, National atlas of the United States
No abstract available....
Geohydrologic data for a low-level radioactive contamination site, Wood River Junction, Rhode Island
Barbara J. Ryan
1985, Open-File Report 84-725
The data, generally presented in table-format, are organized within the following six categories: Administrative, lithologic, hydrologic, chemical, geophysical, and climatological....
Growth of submersed macrophyte communities in the St. Clair - Detroit River system between Lake Huron and Lake Erie
Donald W. Schloesser, Thomas A. Edsall, Bruce A. Manny
1985, Canadian Journal of Botany (63) 1061-1065
Growth of submersed aquatic macrophytes was determined from observation and on the basis of biomass of samples collected from April to November 1978 at seven study sites in a major river system of the Great Lakes, the St. Clair – Detroit river system between Lake Huron and Lake Erie. Growth...
Uptake, biotransformation, and elimination of rotenone by bluegills (Lepomis macrochirus )
W.H. Gingerich, J.J. Rach
1985, Aquatic Toxicology (6) 179-186
Yearling bluegills (Lepomis macrochirus) were exposed to sublethal concentrations of [14C]rotenone (5.2 μg/l) for 30 days in a continuous flow exposure system and then transferred to clean, flowing water for an additional 21-day depuration period. Rates of uptake and elimination and profile of the rotenoid metabolites in head, viscera, and...
Mapping and research in the exclusive economic zone
Bonnie A. McGregor, Millington Lockwood
1985, Report
By proclamation of the President on March 10, 1983, the United States claimed sovereign rights and jurisdiction within an Exclusive Economic Zone (EEZ). The United States is responsible for wisely developing and managing the EEZ and its marine resources and for protecting its environment. The U.S. Exclusive Economic Zone is...
Confined-drift aquifers studied near the Pomme de Terre and Chippewa Rivers, west-central Minnesota
G. N. Delin
1985, Report
No abstract available....
Discussion of 'Critical water velocity for snail habitats in canals' by W. R. Jobin, A. Laracuente, R. Mercado, and H. Negron-Aponte
Robert T. Milhous
1985, Journal of Environmental Engineering (111) 389-392
No abstract available....
Summaries of selected mitigation evaluation studies
G.C. Horak
1985, Report
No abstract available....
Nutritional ecology of a fossorial herbivore: protein N and energy value of winter caches made by the northern pocket gopher, Thomomys talpoides
Miki M. Stuebe, Douglas C. Andersen
1985, Canadian Journal of Zoology (63) 1101-1105
Northern pocket gophers (Thomomys talpoides) are fossorial herbivores that excavate belowground plant parts for food. In subalpine areas during autumn and winter, pocket gophers hoard plant parts in caches placed in or under snow. We examined the size and composition of 17 nival caches and tested the hypotheses that (i)...
Information needs for natural fire management planning
David Parsons, Larry Bancroft, Thomas Nichols, Thomas Stohlgren
1985, Book, Proceedings, Symposium and Workshop on Wilderness Fire
The development and implementation of an effective natural fire management program require a clear definition of goals and objectives, an ever-expanding information base, and effective program evaluation. Examples are given from Sequoia and Kings Canyon National Parks....
Minor Creek landslide
Richard M. Iverson
Mary E. Savina, editor(s)
1985, Book chapter, Redwood country: American Geomorphological Field Group field trip guidebook
No abstract available....
Fire-caused mortality in chamise chaparral
T.J. Stohlgren
1985, Report
No abstract available....
Selecting study reaches for the instream flow incremental methodology
Water Resources Division, U.S. Geological Survey
1985, Report
No abstract available....
Planning considerations for recording the next major earthquake in California
Roger D. Borcherdt, B. A. Bolt
1985, Conference Paper, Strong ground motion simulation and earthquake engineering applications: A technology assessment
No abstract available....
Hydrogeology, digital solute-transport simulation, and geochemistry of the Lower Cretaceous aquifer system near Baltimore, Maryland
Francis H. Chapelle
1985, Maryland Geological Survey Report of Investigations 43
This study was made to develop information on the hydrogeology and ground-water geochemistry of the Patuxent and Patapsco aquifers (Lower Cretaceous) near Baltimore, Maryland. This information is needed to evaluate the availability and chemical quality of water from these aquifers.The Patuxent aquifer unconformably overlies Lower Paleozoic and Precambrian basement rocks...
Chronology of migration by American coots in Oklahoma
William R. Eddleman, Fritz L. Knopf, Craig T. Patterson
1985, Journal of Wildlife Management (49) 241-246
American coots (Fulica americana) were studied on large reservoirs in north-central Oklahoma in 1979-1982 to determine chronologies of migrations by age- and sex class. Coots began migrating into Oklahoma in mid-September, numbers peaked in early to mid-October, and few birds were seen after 1 November. Some late migrants...
Analysis of gravity data in volcanic terrain and gravity anomalies and subvolcanic intrusions in the Cascade Range, U.S.A., and at other selected volcanoes
David L. Williams, Carol A. Finn
William J. Hinze, editor(s)
1985, Book chapter, The utility of regional gravity and magnetic anomaly maps
Gravity data were investigated to reveal the presence of subvolcanic intrusions. With few exceptions, these intrusions produce a detectable gravity anomaly. In the past, these gravity anomalies have often been overlooked or misinterpreted because the data reduction procedure was inadequate. A pragmatic method for reducing and interpreting reconnaissance gravity data...
Federal program activities of the Water Resources Division, April 1985
Water Resources Division, U.S. Geological Survey
1985, Report
No abstract available....
Outlook for the Yellowstone grizzly
Richard L. Knight
1985, Naturalist (36)
No abstract available....
Early results of investigations of Landsat 4 Thematic Mapper and Multispectral Scanner applications
F. G. Sadowski, J. A. Sturdevant, W.H. Anderson, P. M. Seevers, J. Feuquay, L. K. Balick, F. A. Waltz, D. T. Lauer
1985, Report, Landsat-4 science characterization early results. Volume 4: Applications
No abstract available....
