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Publications

Scientific reports, journal articles, and information products produced by USGS Pacific Coastal and Marine Science Center scientists.

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Molecular and isotopic compositions of hydrocarbons at Site 533, Deep Sea Drilling Project Leg 76

In an investigation of gas hydrates in deep ocean sediments, gas samples from Deep Sea Drilling Project Site 533 on the Blake Outer Ridge in the northwest Atlantic were obtained for molecular and isotopic analyses. Gas samples were collected from the first successful deployment of a pressure core barrel (PCB) in a hydrate region. The pressure decline curves from two of the four PCB retrievals at i
Authors
J.M. Brooks, L.A. Barnard, D.A. Wiesenburg, M.C. Kennicutt, Keith A. Kvenvolden

Pressure core barrel; application to the study of gas hydrates, Deep Sea Drilling Project Site 533, Leg 76

A pressure core barrel (PCB), developed by the Deep Sea Drilling Project, was used successfully to recover, at in situ pressure, sediments of the Blake Outer Ridge, offshore the southeastern United States. The PCB is a unique, wire-line tool, 10.4 m long, capable of recovering 5.8 m of core (5.8 cm in diameter), maintained at or below in situ pressures of 34.4 million Pascals (MPa), and 1.8 m of u
Authors
Keith A. Kvenvolden, D. Cameron

Methane and other hydrocarbon gases in marine sediment

No abstract available.
Authors
G. E. Claypool, Keith A. Kvenvolden

Concentrations and carbon isotopic compositions of CH4 and CO2 in gas from sediments of the Blake Outer Ridge, Deep Sea Drilling Project Leg 76

The principal gaseous carbon-containing components identified in the first 400 m of sediment at Deep Sea Drilling Project Site 533, Leg 76, are methane (CH4 ) and carbon dioxide (CO2 ). Below a sub-bottom depth of about 25 m, sedi ment cores commonly contained pockets caused by the expansion of gas upon core recovery. The carbon isotopic com position (δ13C %0 relative to PDB standard) of CH4 and C
Authors
E.M. Galimov, Keith A. Kvenvolden

Tectonic evolution of Gulf of Anadyr and formation of Anadyr and Navarin basins

New seismic reflectionand refraction data reveal that Anadyr basin is separated from Navarin basin by Anadyr ridge, a southeast-northwest-trending bedrock high that is characterized by high-amplitude, short-wavelength magnetic anomalies. Anadyr ridge may be an offshore extension of the melange belt underlying the Koryak Range. Sonobuoy refraction data indicate that the velocity profile of strata i

Authors
Michael S. Marlow, Alan K. Cooper, Jonathan R. Childs

Wandering terranes in southern Alaska: The Aleutia Microplate and implications for the Bering Sea

Paleomagnetic and geological data suggest that much of southern Alaska is a collage of tectonostratigraphic terranes which originated in Mesozoic time at paleolatitudes far south of their present position. The time of ‘docking’ of the terranes against cratonic Alaska is critical to defining their amalgamated size and extent during their northward motion as well as their role in the evolution of th
Authors
Michael S. Marlow, Alan K. Cooper

A summary of U.S. Geological Survey marine geologic studies on the inner shelf of the Chukchi Sea, Alaska, 1975 and 1981

No abstract available.

Authors
Thomas E. Reiss, R. L. Phillips, R. E. Hunter, P. W. Barnes

Response: Uranium series ages of the Del Mar Man and Sunnyvale skeletons

No abstract available.
Authors
James L. Bischoff, Robert J. Rosenbauer

Amino acids in sediments from Leg 68, Site 502

No abstract available.
Authors
Keith A. Kvenvolden, D. Blunt

Leg 84 of the Deep Sea Drilling Project

No abstract available.
Authors
J. Aubouin, Roland E. von Huene, M. Baltuck, Robert Arnott, J. Bourgois, M.V. Filewicz, Keith A. Kvenvolden, Barry Leinert, Tom McDonald, Kristin McDougall-Reid, Y. Ogawa, Elliot Taylor, Barbara Winsborough

Ancient plate boundaries in the Bering Sea region

Plate tectonic models of the Bering Sea suggest that the abyssal Bering Sea Basin is underlain by oceanic crust, a supposition supported by refraction and magnetic data. The oceanic crust is thought to be a remnant of the Kula(?) plate that was isolated within what is now the Bering Sea when the proto-Aleutian arc began to form between the Alaska Peninsula and Kamchatka in late Mesozoic or earlies
Authors
M. S. Marlow, Alan K. Cooper, David W. Scholl, H. McLean
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