Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Preliminary report on gaseous hydrocarbons in sediment and seeps, offshore Eel River basin, California Preliminary report on gaseous hydrocarbons in sediment and seeps, offshore Eel River basin, California
No abstract available
Authors
M.E. Field, K.A. Kvenvolden
PYROLYSIS/GAS CHROMATOGRAPHY/MASS SPECTROMETRY OF A SERIES OF BURIED WOODS AND COALIFIED LOGS THAT INCREASE IN RANK FROM PEAT TO SUBBITUMINOUS COAL. PYROLYSIS/GAS CHROMATOGRAPHY/MASS SPECTROMETRY OF A SERIES OF BURIED WOODS AND COALIFIED LOGS THAT INCREASE IN RANK FROM PEAT TO SUBBITUMINOUS COAL.
To better understand the coalification process, we have conducted numerous studies of the chemical structural composition of xylem tissue from gymosperm wood and related woods that has been coalified to varying degrees. The studies presented here, examine the chemical nature of buried and coalified xylem tissue at the molecular level. To achieve this, we employed pyrolysis/gas...
Authors
Patrick G. Hatcher, Harry E. Lerch, Rama K. Kotra, Vincent T. Verheyen
Sanctuaries for lake trout in the Great Lakes Sanctuaries for lake trout in the Great Lakes
Populations of lake trout, severely depleted in Lake Superior and virtually extirpated from the other Great Lakes because of sea lamprey predation and intense fishing, are now maintained by annual plantings of hatchery-reared fish in Lakes Michigan, Huron, and Ontario and parts of Lake Superior. The extensive coastal areas of the Great Lakes and proximity to large populations resulted in...
Authors
Jon G. Stanley, Randy L. Eshenroder, Wilbur L. Hartman
SAND SOURCES FOR THE TRANSGRESSIVE BARRIER COAST OF LONG ISLAND, NEW YORK: EVIDENCE FOR LANDWARD TRANSPORT OF SHELF SEDIMENTS. SAND SOURCES FOR THE TRANSGRESSIVE BARRIER COAST OF LONG ISLAND, NEW YORK: EVIDENCE FOR LANDWARD TRANSPORT OF SHELF SEDIMENTS.
During investigations of the regional geologic framework of Long Island shelf by means of seismic-reflection profiles and cores, Williams (1976) identified a rather limited area on the shelf off Jones Beach where Upper Cretaceous or early Tertiary age glauconite-rich lithosomes subcrop at the seabed, seaward of the shoreface. A suite of beach samples from Montauk Point to Rockaway Beach...
Authors
S.J. Williams, E.P. Meisburger
SEA-ICE INFLUENCE ON ARCTIC COASTAL RETREAT. SEA-ICE INFLUENCE ON ARCTIC COASTAL RETREAT.
Recent studies document the effectiveness of sea ice in reshaping the seafloor of the inner shelf into sharp-relief features, including ice gouges with jagged flanking ridges, ice-wallow relief, and 2- to 6-m-deep strudel-scour craters. These ice-related relief forms are in disequilibrium with classic open-water hydraulic processes and thus are smoothed over by waves and currents in one...
Authors
Erk Reimnitz, P. W. Barnes
SEAFLOOR EXPLORATION AND CHARACTERIZATION: PREREQUISITE TO OCEAN SPACE UTILIZATION. SEAFLOOR EXPLORATION AND CHARACTERIZATION: PREREQUISITE TO OCEAN SPACE UTILIZATION.
A historical survey of US bathymetric mapping is presented up through the major mapping project begun in response to the 1983, establishment of an Exclusive Economic Zone (EEZ), 200 nautical miles seaward. The EEZ extends sovereign rights for the purposes of exploring, exploiting, conserving, and managing natural resources in the coastal ocean. This new area is approximately 3. 4 million...
Authors
Gary Hill, Millington Lockwood
Some effects of climate variability on hydrology in western North America Some effects of climate variability on hydrology in western North America
The strong north-south gradient in precipitation along the West Coast makes this region an interesting laboratory for studying the influence of climate on runoff variability in general and riverine chemistry in particular. Interannual fluctuations in large-scale atmospheric circulation and associated precipitation and runoff can produce major disruptions in the "average" climatologic...
Authors
D. H. Peterson, D.R. Cayan, J. S. Dileo-Stevens, T.G. Ross
Tectonic morphology of offshore Eel River basin, California Tectonic morphology of offshore Eel River basin, California
No abstract available
Authors
M.E. Field, J.V. Gardner, D.E. Drake, D.A. Caccione
The Vizcaino Block of the Mendocino triple junction, Northern California The Vizcaino Block of the Mendocino triple junction, Northern California
No abstract available
Authors
D. S. McCulloch
U. S. GEOLOGICAL SURVEY'S NATIONAL REAL-TIME HYDROLOGIC INFORMATION SYSTEM USING GOES SATELLITE TECHNOLOGY. U. S. GEOLOGICAL SURVEY'S NATIONAL REAL-TIME HYDROLOGIC INFORMATION SYSTEM USING GOES SATELLITE TECHNOLOGY.
The U. S. Geological Survey maintains the basic hydrologic data collection system for the United States. The Survey is upgrading the collection system with electronic communications technologies that acquire, telemeter, process, and disseminate hydrologic data in near real-time. These technologies include satellite communications via the Geostationary Operational Environmental Satellite...
Authors
William G. Shope
UNDERWATER MAPPING USING GLORIA AND MIPS. UNDERWATER MAPPING USING GLORIA AND MIPS.
Advances in digital image processing of the (GLORIA) Geological Long-Range Induced Asdic) sidescan-sonar image data have made it technically and economically possible to map large areas of the ocean floor including the Exclusive Economic Zone. Software was written to correct both geometric and radiometric distortions that exist in the original raw GLORIA data. A digital mosaicking...
Authors
Pat S. Chavez, Jeffrey A. Anderson, James W. Schoonmaker