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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

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Gas hydrates in the Messoyakha gas field of the West Siberian Basin - a re-examination of the geologic evidence Gas hydrates in the Messoyakha gas field of the West Siberian Basin - a re-examination of the geologic evidence

The amount of natural gas within the gas hydrate accumulations of the world is believed to greatly exceed the volume of known conventional natural gas reserves. The hydrocarbon production history of the Russian Messoyakha field, located in the West Siberian Basin, has been used as evidence that gas hydrates are an immediate source of natural gas that can be produced by conventional means...
Authors
Timothy S. Collett, Gabriel D. Ginsburg

Geologic and climatic controls on the radon emanation coefficient Geologic and climatic controls on the radon emanation coefficient

Geologic, pedologic, and climatic factors, including radium content, grain size, siting of radon parents within soil grains or on grain coatings, and soil moisture conditions, determine a soil's emanating power and radon transport characteristics. Data from field studies indicate that soils derived from similar parent rocks in different regions have significantly different emanation...
Authors
R.R. Schumann, L.C.S. Gundersen

Geotechnical properties of debris-flow sediments and slurries Geotechnical properties of debris-flow sediments and slurries

Measurements of geotechnical properties of various poorly sorted debris-flow sediments and slurries (??? 32 mm diameter) emphasize their granular nature, and reveal that properties of slurries can differ significantly from those of compacted sediments. Measurements show that: (1) cohesion probably offers little resistance to shear in most debris flows under low confining stresses...
Authors
J. J. Major, R.M. Iverson, D.F. McTigue, S. Macias, B.K. Fiedorowicz

Hydraulic modeling of unsteady debris-flow surges with solid-fluid interactions Hydraulic modeling of unsteady debris-flow surges with solid-fluid interactions

Interactions of solid and fluid constituents produce the unique style of motion that typifies debris flows. To simulate this motion, a new hydraulic model represents debris flows as deforming masses of granular solids variably liquefied by viscous pore fluid. The momentum equation of the model describes how internal and boundary forces change as coarse-grained surge heads dominated by...
Authors
Richard M. Iverson

Immunization with viral antigens: Infectious haematopoietic necrosis Immunization with viral antigens: Infectious haematopoietic necrosis

Infectious haematopoietic necrosis (IHN) is one of the most important viral diseases of salmonids, especially among juvenile fish where losses can be high. For over 20 years, researchers have tested a variety of preparations for control of IHN. Early vaccines consisted of killed virus and were effective when delivered by injection, but too costly to be practical on a large scale...
Authors
J. R. Winton

Impact of an extreme event on the sediment budget: Hurricane Andrew in the Louisiana barrier islands Impact of an extreme event on the sediment budget: Hurricane Andrew in the Louisiana barrier islands

This paper examines the influence of Hurricane Andrew on the sediment budget of an 80-kilometer section of the Louisiana barrier islands west of the modern Mississippi delta. Because long-term bathymetric change has been extensively studied in this area, excellent baseline data are available for evaluating the impact of Hurricane Andrew. Results show that despite the high intensity of...
Authors
Jeffrey H. List, Mark E. Hansen, Sallenger, Bruce E. Jaffe

In-situ stress and fracture permeability in a fault-hosted geothermal reservoir at Dixie Valley, Nevada In-situ stress and fracture permeability in a fault-hosted geothermal reservoir at Dixie Valley, Nevada

As part of a study relating fractured rock hydrology to in-situ stress and recent deformation within the Dixie Valley Geothermal Field, borehole televiewer logging and hydraulic fracturing stress measurements were conducted in a 2.7-km-deep geothermal production well (73B-7) drilled into the Stillwater fault zone. Borehole televiewer logs from well 73B-7 show numerous drilling-induced...
Authors
Stephen Hickman, Colleen Barton, Mark Zoback, Roger Morin, John Sass, Richard Benoit
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