Publications
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Seismic-wave attenuation associated with crustal faults in the New Madrid seismic zone Seismic-wave attenuation associated with crustal faults in the New Madrid seismic zone
The attenuation of upper crustal seismic waves that are refracted with a velocity of about 6 kilometers per second varies greatly among profiles in the area of the New Madrid seismic zone in the central Mississippi Valley. The waves that have the strongest attenuation pass through the seismic trend along the axis of the Reelfoot rift in the area of the Blytheville arch. Defocusing of the...
Authors
R. M. Hamilton, Walter D. Mooney
Major off-axis hydrothermal activity on the northern Gorda Ridge Major off-axis hydrothermal activity on the northern Gorda Ridge
The first hydrothermal field on the northern Gorda Ridge, the Sea Cliff hydrothermal field, was discovered and geologic controls of hydrothermal activity in the rift valley were investigated on a dive series using the DSV Sea Cliff. The Sea Cliff hydrothermal field was discovered where predicted at the intersection of axis-oblique and axis-parallel faults at the south end of a linear...
Authors
Peter A. Rona, Roger P. Denlinger, M. R. Fisk, K. J. Howard, G. L. Taghon, Kim D. Klitgord, James S. McClain, G. R. McMurray, J. C. Wiltshire
The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990 The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990
No abstract available.
Authors
Thomas J. Casadevall, Bernard A. Chouet, John N. Davies, Steven A. Estes, Cynthia A. Gardner, Richard P. Hoblitt, John C. Lahr, Richard G. Lahusen, Jon J. Major, Robert G. McGimsey, Thomas P. Miller, Thomas L. Murray, Christina A. Neal, Christopher J. Nye, Robert A. Page, Thomas C. Pierson, John Power, Christopher D. Stephens, Richard B. Waitt
Groundwater flow-field in infinite slopes Groundwater flow-field in infinite slopes
No abstract available.
Authors
R.M. Iverson
IGRFGRID : a program for creation of a total magnetic field (International Geomagnetic Reference Field) grid representing the earth's main magnetic field, Part A - Documentation IGRFGRID : a program for creation of a total magnetic field (International Geomagnetic Reference Field) grid representing the earth's main magnetic field, Part A - Documentation
No abstract available.
Authors
Ronald E. Sweeney
Multichannel seismic reflection surveys over the Antarctic continental margin relevant to petroleum resource studies Multichannel seismic reflection surveys over the Antarctic continental margin relevant to petroleum resource studies
More than 100,000 km of marine multichannel seismic profiles have been acquired over the continental margin of Antarctica since 1976 by scientific research programs of Australia, Brazil, France, Italy, Japan, Norway, Poland, United Kingdom, United States, U.S.S.R. and West Germany. Although scientific results are reported for most of these data, they also are relevant to petroleum...
Authors
John C. Behrendt
Early Cretaceous shelf-edge deltas of the Baltimore Canyon Trough: principal sources for sediment gravity deposits of the northern Hatteras Basin Early Cretaceous shelf-edge deltas of the Baltimore Canyon Trough: principal sources for sediment gravity deposits of the northern Hatteras Basin
We present evidence that the principal sources for Early Cretaceous (Berriasian-Valanginian) gravity-flow deposits of the northern Hatteras Basin were three large shelf-edge deltas located along the outer margin of the Baltimore Canyon Trough, ∼ 100 km southeast of Cape Charles, Virginia, Ocean City, Maryland, and Long Branch, New Jersey. Sedimentary detritus from the central Appalachian...
Authors
C. Wylie Poag, B. Ann Swift, John S. Schlee, Mahlon M. Ball, Linda L. Sheetz
Chronostratigraphic relations of neogene formations of the Great Hungarian Plain based on interpretation of seismic and paleomagnetic data Chronostratigraphic relations of neogene formations of the Great Hungarian Plain based on interpretation of seismic and paleomagnetic data
No abstract available.
Authors
G. Pogacsas, L. Lakatos, E. Simon, G. Vakaros, G. L. Varkonyi, P. Varnai, Aron Jambor, T. Hamar, M. Lantos, Robert E. Mattick, Donald P. Elston
Accumulation of bank-top sediment on the western slope of Great Bahama Bank: rapid progradation of a carbonate megabank Accumulation of bank-top sediment on the western slope of Great Bahama Bank: rapid progradation of a carbonate megabank
High-resolution seismic profiles and submersible observations along the leeward slope of western Great Bahama Bank show large-scale export of bank-top sediment and rapid progradation of the slope during the Holocene. A wedge-shaped sequence, up to 90 m thick, is present along most of the slope and consists of predominantly aragonite mud derived from the bank since flooding of the...
Authors
R. Jude Wilber, John D. Milliman, Robert B. Halley
Monitoring the hydrologic system for potential effects of geothermal and ground-water development in the Long Valley caldera, Mono County, California, U.S.A. Monitoring the hydrologic system for potential effects of geothermal and ground-water development in the Long Valley caldera, Mono County, California, U.S.A.
In the early 1980's, renewed interest in the geothermal potential of the Long Valley caldera, California, highlighted the need to balance the benefits of energy development with the established recreational activities of the area. The Long Valley Hydrologic Advisory Committee, formed in 1987, instituted a monitoring program to collect data during the early stages of resource utilization...
Authors
C. D. Farrar, D. L. Lyster
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1990 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1990
No abstract available.
Authors
John B. Townshend, Richard V. O’Connell, Carol Ann Varner
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1990 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1990
No abstract available.
Authors
John B. Townshend, Richard V. O’Connell, Carol Ann Varner