Organochlorine concentrations, whole body weights, and lipid content of black skimmers wintering in Mexico and in south Texas, 1983
Donald H. White, C. A. Mitchell, C. J. Stafford
1985, Bulletin of Environmental Contamination and Toxicology (34) 513-517
Since 1978, a large proportion of the black skimmers (Rynchops niger) nesting along the Texas coast have had high concentrations of DDE in their eggs. Of 284 eggs collected from 5 sites during 1978-81, 99.5% contained detectable (> 0.i0 ppm) w levels of DDE, ranging up to 86 ppm wet-weight;...
Organochlorine chemical residues in white pelicans and western grebes from the Klamath Basin, California
D.E. Boellstorff, H. M. Ohlendorf, D. W. Anderson, E.J. O’Neill, J.O. Keith, R. M. Prouty
1985, Archives of Environmental Contamination and Toxicology (14) 485-493
Samples were analyzed for 12 organochlorine chemicals. Concentrations of DDT + DDD and dieldrin in American white pelican(Pelecanus erythrorhynchos) eggs collected at the Klamath Basin National Wildlife Refuges decreased from 1969 to 1981; DDE and polychlorobiphenyl (PCB) residues did not significantly change. Differences between PCB residues in...
The water resources models of the instream flow group
Robert T. Milhous
1985, Book, Computer applications in water resources: Proceedings of the specialty conference sponsored by the resources planning and management division
No abstract available....
Origin and tectonic evolution of the Maclaren and Wrangellia terranes, eastern Alaska Range, Alaska
Warren J. Nokleberg, D. L. Jones, Norman J. Silberling
1985, GSA Bulletin (96) 1251-1270
Major portions of the eastern Alaska Range, south of the Denali fault, in the McCarthy, Nabesna, Mount Hayes, and eastern Healy quadrangles, consist predominantly of the Maclaren and Wrangellia tectono-stratigraphic terranes. The Maclaren terrane consists of the Maclaren Glacier metamorphic belt and the regionally deformed and metamorphosed East Susitna batholith....
Geologic setting, petrology, and geochemistry of stratiform sphalerite-galena-barite deposits, Red Dog Creek and Drenchwater Creek areas, northwestern Brooks Range, Alaska
Ian M. Lange, Warren J. Nokleberg, J.T. Plahuta, H.R. Krouse, B. R. Doe
1985, Economic Geology (80) 1896-1926
Similar stratiform sphalerite-galena-barite deposits occur in the Red Dog Creek area, De Long Mountains quadrangle, and in the Drenchwater Creek area, Howard Pass quadrangle, northwestern Brooks Range, Alaska. The deposits, located approximately 180 km apart, are hosted by Mississippian and Pennsylvanian strata of the Kagvik structural sequence of late Paleozoic...
Paleomagnetic and petrologic evidence bearing on the age and origin of uranium deposits in the Permian Cutler Formation, Lisbon Valley, Utah
Richard L. Reynolds, Mark R. Hudson, Neil S. Fishman, John A. Campbell
1985, GSA Bulletin (96) 719-730
An approximate age for uranium deposits in red beds of the Permian Cutler Formation, Lisbon Valley salt anticline, Utah, was obtained using paleomagnetic techniques. Progressive thermal demagnetization of samples of mineralized sandstone isolates stable magnetization components having high (≳400 °C) unblocking temperatures that define a tilt-corrected mean direction of D...
Foraging decisions, patch use, and seasonality in egrets (Aves: ciconiiformes)
R. Michael Erwin
1985, Ecology (66) 837-844
Feeding Snowy (Egretta thula) and Great (Casmerodius albus) egrets were observed during two breeding seasons in coastal New Jersey and two brief winter periods in northeast Florida. A number of tests based on assumptions of foraging models, predictions from foraging theory, and earlier empirical tests concerning time allocation and movement...
Problem analysis and planning for the FWS cumulative impacts program: August 1984 workshop proceedings
Carl L. Armour, Richard L. Johnson, Samuel C. Williamson
1985, Report, Biological Report
No abstract available....
Water quality and chemical evolution of ground water within the north coast limestone aquifers of Puerto Rico
Angel J. Roman-Mas, Roger W. Lee
1985, Conference Paper, American Water Resources Association, Technical Publication Series TPS-85-1
Waters within the north coastal limestoneaquifers are suitable for public supply, industrial and agricultural uses. For the artesian aquifer and the updip parts of the watertable aquifer, calcium and bicarbonate are the dominant ionic species with total dissolved solids and chloride concentrations below 500 and 250 mg/L, respectively. In coastal areas of...
The role of CAM in the carbon economy of the submerged-aquatic Isoetes howellii
Jon E. Keeley
1985, Verhandlugen Internationale Vereingung fur Limnologie (22) 2909-2911
No abstract available. ...
Comment on "Possible effects of erosional changes of the topographic relief on pore pressure at depth" by J. Tóth and R.F. Millar
C. E. Neuzil
1985, Water Resources Research (21) 895-898
No abstract available....
Bottomland vegetation distribution along Passage Creek, Virginia, in relation to fluvial landforms
Cliff R. Hupp, W. R. Osterkamp
1985, Ecology (66) 670-681
Persistent distribution patterns of woody vegetation within the bottomland forest of Passage Creek, Virginia, were related to fluvial landforms, channel geometry, streamflow characteristics, and sediment—size characteristics. Vegetation patterns were determined from species presence as observed in transects and traverses on landforms developed along the stream. Distinct species distributional patterns were...
A model for a seismic computerized alert network
Thomas H. Heaton
1985, Science (228) 987-990
In large earthquakes, damaging ground motions may occur at large epicentral distances. Because of the relatively slow speed of seismic waves, it is possible to construct a system to provide short-term warning (as much as several tens of seconds) of imminent strong ground motions from major earthquakes. Automated safety responses...
The relocation of microearthquakes in the northern Mississippi Embayment
M.C. Andrews, Walter D. Mooney, R.P. Meyer
1985, Journal of Geophysical Research Solid Earth (90) 10223-10236
Three-component seismograms, recorded by a small array of digital instruments in the northern Mississippi embayment, consistently show a high-amplitude phase on the vertical component that arrives approximately 0.8 s before the shear wave. On the basis of its timing and apparent velocity, this phase is identified as an S-P conversion from the...
Massive sulfide deposits on the southern Juan de Fuca Ridge: Results of investigations in the USGS study area, 1980-83
Randolph A. Koski, William R. Normark, Janet L. Morton
1985, Marine Mining (5) 147-164
No abstract available....
Mineralogy and geochemistry of a sediment‐hosted hydrothermal sulfide deposit from the Southern Trough of Guaymas Basin, Gulf of California
Randolph A. Koski, P. F. Lonsdale, Wayne C Shanks, M.E. Berndt, S. S. Howe
1985, Journal of Geophysical Research B: Solid Earth (90) 6695-6707
Samples dredged from a 15‐m‐high hydrothermal mound atop the flat turbidite pond in the Southern Trough of Guaymas Basin consist of pyrrhotite‐rich massive sulfide, barite, barite + calcite, talc, and opaline silica as well as substrate material composed of fossiliferous, clay‐rich ooze. An 11‐m‐long sediment core taken near the dredge...
Fluorine in Colorado oil shale
John R. Dyni
1985, Conference Paper, Eighteenth Oil Shale symposium
Oil shale from the lower part of the Eocene Green River Formation in the Piceance Creek Basin, Colorado, averages 0.13 weight percent fluorine, which is about twice that found in common shales, but is the same as the average amount found in some oil shales from other parts of the...
A Silurian soft-bodied biota
Donald G. Mikulic, D. E. G. Briggs, Joanne Kluessendorf
1985, Science (228) 715-717
A new Silurian (Llandoverian) biota from Wisconsin with a significant soft-bodied and lightly sclerotized component is dominated by arthropods and worms. The fauna includes the earliest well-preserved xiphosure, a possible marine uniramian, three new arthropods of uncertain affinity, and possibly the first Paleozoic leech. This may be only the second...
Comparative geochemical and mineralogical studies of two cyclic transgressive pelagic limestone units, cretaceous Western Interior Basin, U.S.
M.A. Arthur, Walter E. Dean, Richard M. Pollastro, George E. Claypool, Peter A. Scholle
1985, SEPM Special Publication 16-27
Pelagic limestone units were deposited in the North American Western Interior seaway during two major Cretaceous transgressive episodes. The Bridge Creek Limestone Member of the Greenhorn Formation, deposited during the Late Cenomanian-Early Turonian transgression, and the Smoky Hill Member of the Niobrara Formation, deposited during the overall Early Coniacian-Early Campanian...
Chemical investigations of wolf (Canis lupus) anal-sac secretion in relation to breeding season
J. Raymer, D. Wiesler, M. Novotny, C. Asa, U.S. Seal, L.D. Mech
1985, Journal of Chemical Ecology (11) 593-608
The volatile constituents of wolf anal-sac secretions were examined via capillary gas chromatography and compared among intact males, females, castrate males, ovariectomized females, and anosmic and pinealectomized males and females. Some chemical compounds were deemed significantly different (t test, 95% confidence level) among the groups both during and outside of the...
The use of a spatial and tabular data base for order-three soil surveys
E. H. Horvath, A. A. Klingebiel, D. G. Moore
1985, Conference Paper, Proceedings of the 19th International Symposium on Remote Sensing of Environment
No abstract available....
Conflict resolution and negotiation in the licensing process
Leah J. Wilds, Berton Lee Lamb
1985, Book, Proceedings of the Symposium on Small Hydropower and Fisheries
No abstract available....
Guidelines for implementing natural resource information systems: the river reach fisheries information system
Molly R. Whitworth, Gerry Jorak, Lee S. Ischinger
1985, Report
No abstract available....
Evaluation of the effects of hydropeaking on aquatic macroinvertebrates using PHASIM
Ken D. Bovee
1985, Book, Proceedings of the Symposium on Small Hydropower and Fisheries
No abstract available....
Sediment transport, instream flows, and the small hydro project
Robert T. Milhous
1985, Book, Proceedings of the Symposium on Small Hydropower and Fisheries
No abstract available....
