Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

10898 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 325, results 8101 - 8125

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
A reinterpretation of the δDH2O of inclusion fluids in contemporaneous quartz and sphalerite, Creede mining district, Colorodo: a generic problem for shallow orebodies?
Nora K. Foley, Philip M. Bethke, Robert O. Rye
1989, Economic Geology (84) 1966-1977
Water extracted from fluid inclusions in quartz from shallow epithermal ore deposits often has a hydrogen isotope composition (δD) different from that of water extracted from inclusions in associated minerals. This difference is usually attributed to the involvement of primary fluids from multiple sources. Isotopic and homogenization and freezing temperature...
Remarkable isotopic and trace element trends in potassic through sodic Cretaceous plutons of the Yukon-Koyukuk Basin, Alaska, and the nature of the lithosphere beneath the Koyukuk terrane
Joseph G. Arth, Robert E. Criss, Clara C. Zmuda, Nora K. Foley, W. W. Patton Jr., T. P. Miller
1989, Journal of Geophysical Research B: Solid Earth (94) 15957-15968
During the period from 110 to 80 m.y. ago, a 450-km-long magmatic belt was active along the northern margin of Yukon-Koyukuk basin and on eastern Seward Peninsula. The plutons intruded Upper Jurassic(?) and Lower Cretaceous volcanic arc rocks and Cretaceous sedimentary rocks in Yukon-Koyukuk basin and Proterozoic and lower Paleozoic...
Impacts of exploratory drilling for oil and gas on the benthic environment of Georges Bank
J. M. Neff, Michael H. Bothner, N. J. Maciolek, J. F. Grassle
1989, Marine Environmental Research (27) 77-114
A 3-year monitoring program was performed to assess the impacts of exploratory drilling for oil and gas on the benthic environment of Georges Bank, an important commercial fishery region in the North Atlantic east of Massachusetts, USA. Surficial sediments were sampled for chemical and benthic infaunal analysis and bottom still...
Earthquakes, September-October 1988
W. J. Person
1989, Earthquakes & Volcanoes (USGS) (21) 85-88
There were no major earthquakes (7.0-7.9) during this reporting period. Earthquake-related deaths were reported from Czechoslovakia and injuries were reported from Algeria and Greece. In the United States a sharp earthquake occurred in eastern Kentucky, causing some minro damage. ...
Inner shelf deposits of the Louisiana-Mississippi-Alabama region, Gulf of Mexico
Jack L. Kindinger, Shea Penland, S. Jeffress Williams, John R. Suter
1989, Gulf Coast Association of Geological Societies Transactions (39) 413-420
The late Quaternary morphology, shallow stratigraphy and sediment distribution of the Louisiana-Mississippi-Alabama inner shelf region are the product of transgressive and regressive sedimentary processes. Shelf sedimentary facies were deposited by deltaic progradation, followed by shoreface erosion and submergence. This information is based on interpretations and synthesis of more than 4,160...
The Resurrection Peninsula ophiolite
Steven W. Nelson, Marti L. Miller, Julie A. Dumoulin
Steven W. Nelson, Thomas D. Hamilton, editor(s)
1989, Book chapter, Guide to the ceology of the Resurrection Bay - Eastern Kenai Fjords area
The Resurrection Peninsula forms the east side of Resurrection Bay (fig. 3). Relief ranges from 437 m (1,434 ft) at the southern end of the peninsula to more than 1,463 m (4,800 ft) opposite the head of the bay. All rock units composing the informally named Resurrection Peninsula ophiolite of...
Holocene sand shoals offshore of the Mississippi River delta plain
Shea Penland, John R. Suter, Randolph A. McBride, S. Jeffress Williams, Jack L. Kindinger, Ron Boyd
1989, Gulf Coast Association of Geological Societies Transactions (39) 471-480
Offshore of the Mississippi River delta plain lies a series of Holocene sand shoals marking the position of ancient submerged shorelines associated with younger shelf-phase delta plains. These submerged shorelines represent positions when sea level stood lower than present. Short periods of rapid sea level rise during the Holocene transgression,...
An investigation of shallow ground-water quality near East Fork Poplar Creek, Oak Ridge, Tennessee
J. K. Carmichael
1989, Water-Resources Investigations Report 88-4219
Alluvial soils of the flood plain of East Fork Poplar Creek in Oak Ridge, Tennessee, are contaminated with mercury and other metals, organic compounds, and radio-nuclides originating from the Y-12 Plant, a nuclear-processing facility located within the U.S. Department of Energy 's Oak Ridge Reservation. Observation wells were installed in...
Migration and control of purple loosestrife (Lythrum salicaria L.) along highway corridors
Douglas A. Wilcox
1989, Environmental Management (13) 365-370
The east-west density gradient and the pattern and mode of migration of the wetland exotic, purple loosestrife (Lythrum salicaria L.), were assessed in a survey of populations along the New York State Thruway from Albany to Buffalo to determine if the highway corridor contributed to the spread of this...
Performance and utility of satellite telemetry during field studies of free-ranging polar bears in Alaska
Gerald W. Garner, Steven C. Amstrup, David C. Douglas, Craig L. Gardner
Charles J. Amlaner Jr., editor(s)
1989, Conference Paper, Biotelemetry X: Proceedings of the 10th international symposium on biotelemetry
Satellite telemetry technology has been used during field studies of polar bears in Alaska since 1985. A total of 109 Platform Transmitter Terminals (PTT) have been deployed on free-ranging female polar bears that seasonally inhabit waters adjacent to the Alaskan coast. The PTTs transmitted locational and sensor data to TIROS-N...
Relationship between annual runoff and watershed area for the eastern United States
Barry P. Rochelle, M. Robbins Church, Warren A. Gebert, David J. Graczyk, William R. Krug
1988, Water Resources Bulletin (24) 35-41
As part of the U.S. Environmental Protection Agency's effort to determine the long-term effects of acidic deposition on surface water chemistry, annual runoff was estimated for about 1000 ungaged sites in the eastern U.S. using runoff contour maps. One concern in using contour maps was that a bias may be...
Characterization of an avian cholera epizootic in wild birds in western Nebraska
R. M. Windingstad, S.M. Kerr, R. M. Duncan, C. J. Brand
1988, Avian Diseases (32) 124-131
Avian cholera killed an estimated 2500 birds in western Nebraska and eastern Wyoming from 28 November 1985 to late January 1986. Wild mallards (Anas platyrhynchos) suffered the most losses. Other wild waterfowl, wild turkeys (Meleagris gallopavo), a few domestic fowl, and a bald eagle (Haliaeetus leucocephalus) also died. Pasteurella multocida...
Tectonics of formation, translation, and dispersal of the Coast Range ophiolite of California
R. J. McLaughlin, M.C. Blake Jr., A. Griscom, C.D. Blome, B. Murchey
1988, Tectonics (7) 1033-1056
Data from the Coast Range ophiolite and its tectonic outliers in the northern California Coast Ranges suggest that the lower part of the ophiolite formed 169 to 163 Ma in a forearc or back arc setting at equatorial latitudes. Beginning about 156 Ma and continuing until 145 Ma, arc magmatism...
Effects of zinc smelter emissions on farms and gardens at Palmerton, PA
R. L. Chaney, W. N. Beyer, C.H. Gifford, L. Sileo
1988, Trace Substances in Environmental Health (22) 263-280
In 1979, before the primary Zn smelter at Palmerton was closed due to excessive Zn and Cd emissions and change in the price of Zn, we were contacted by a local veterinarian regarding death of foals (young horses) on farms near the smelter. To examine whether Zn or Cd contamination...
Length of stay and fat content of migrant semipalmated sandpipers in eastern Maine
P.O. Dunn, T.A. May, M.A. McCollough, M.A. Howe
1988, Condor (90) 824-835
Semipalmated Sandpipers (Calidris pusilla) stop at coastal staging areas in the Canadian maritime provinces and northeastern United States to replenish fat reserves before initiating a nonstop transoceanic flight of at least 3,200 km to wintering areas in South America. The relationship between estimated fat content at capture and length of...
The record of major quaternary sea-level changes in a large coastal plain estuary, Chesapeake Bay, Eastern United States
Steven M. Colman, R. B. Mixon
1988, Palaeogeography, Palaeoclimatology, Palaeoecology (68) 99-116
Seismic-reflection surveys of the Chesapeake Bay, combined with geologic mapping and analysis of boreholes on the Delmarva Peninsula, provide evidence of at least three generations of the Susquehanna River system and three generations of the Chesapeake Bay. The evidence for ancient courses of the Susquehanna River is preserved as three...
Pennsylvanian to Jurassic eolian transportation systems in the western United States
F. Peterson
1988, Sedimentary Geology (56) 207-260
The direction of sediment transport in eolian sandstones of Pennsylvanian to Jurassic age was interpreted from crossbedding resultants (vector means) obtained from studies of eolian rocks in the western U.S., supplemented by data from the few eolian units of eastern North America. These were compiled from the published or...
Biological measurements and related chemical features in Soviet and United States regions of the Bering Sea
T.E. Whitledge, R.R. Bidigare, Stephan O. Zeeman, R. N. Sambrotto, Pasquale F. Roscigno, Paul R. Jensen, James M. Brooks, Charles Trees, Denise M. Veldt
1988, Continental Shelf Research (8) 1299-1319
The U.S. results of a joint U.S.-U.S.S.R. expedition to the Bering Sea in 1984 investigated the chemical and biological interactions in the south, east, north and west regions. The nutrients, phytoplankton biomass and primary productivity were enhanced near the ends of a north-south transect of stations. The southern end of...
Glaciers of Antarctica
Charles Swithinbank, Trevor J. Chinn, Richard S. Williams Jr., Jane G. Ferrigno
Richard S. Williams Jr., Jane G. Ferrigno, editor(s)
1988, Professional Paper 1386-B
Of all the world's continents Antarctica is the coldest, the highest, and the least known. It is one and a half times the size of the United States, and on it lies 91 percent (30,109,800 km3) of the estimated volume of all the ice on Earth. Because so little is...
Interpretive aeromagnetic map of the Eagle Mountains Wilderness Study Area, Riverside County, California
V. J. S. Grauch
1988, Miscellaneous Field Studies Map 1818
This report describes the interpretation of aeromagnetic surveys of the Eagle Mountains area, concentrating on the Eagle Mountains Wilderness Study Area (WSA). The interpretations are based on correlations with mapped surface geology by R. E. Powell, reproduced here from Powell and others (1984), as a base for the aeromagnetic data. The...