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Metadata
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ID
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L-9-81-AA
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Abstract
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Chief Scientists: Dave Scholl, Tracy Vallier. Geological
and Geophysical data (3dot5khz, 12khz, airgun, airgunmonitor,
Burgairgun, 24channel, sonobuoy, gravity, gravitycore,
chaindredge, dopplersonar, integratednavigation, RhoRho,
transitsatellite) of field activity L-9-81-AA in Aleutian
Arc, Alaska from 07/19/1981 to 08/13/1981
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Chief Scientist
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Dave Scholl
Tracy Vallier
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Activity Type
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Geological and Geophysical
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Platform
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Samuel Phillips Lee
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Area of Operation
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Aleutian Arc, Alaska
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Location map
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Bounding Coordinates
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54.08144
173.58301 -165.99205
50.11441
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Ports
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leave Dutch Harbor, AK
arrive Dutch Harbor, AK
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Dates
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07/19/1981 (JD 200) to 08/13/1981 (JD 225)
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Analog Materials
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list
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Index map
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Crew
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Aaron Dunwald
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Chief Engineer
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Andy Stevenson
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Geologist
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Bob Rothman
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Chief Mate
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Dave Scholl
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Chief Scientist
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Dennis Mann
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Geophysicist
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Eric Dash
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Watchstander
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Frank Johnson
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Ship Captain
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George Asuncion
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Electronics Technician
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Guy Cochrane
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Navigator
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Jill McCarthy
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Dafe Curator
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Joe Edwards
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Mechanical Technician
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Jon Childs
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Geophysicist
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Kaye Kinoshita
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Navigator
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Margaret Keller
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Geologist
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Meg Kingston
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Navigator
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Paul Wenberg
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Mechanical Technician
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Rick Murnane
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Geochemist
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Rick Murnane
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Geologist
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Roy Fields
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Electronics Technician
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Tracy Vallier
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Chief Scientist
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Wyn Hill
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Geologist
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Wyn Hill
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Geophysicist
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Equipment Used
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3dot5khz
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12khz
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airgun
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airgunmonitor
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Burgairgun
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24channel
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sonobuoy
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gravity
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gravitycore
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chaindredge
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dopplersonar
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integratednavigation
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RhoRho
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transitsatellite
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NGDC Overview
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! Converted to time format with year at start.
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!
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DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data)
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MCG Data Collection ID --- L981AA
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Institution Data Collection ID --- L981AA
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NGDC ID --- 06050096
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Funding --- (unspecified)
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Project, Cruise & Leg --- Tracy Vallier
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Study region --- +55.00000,+50.00000,+173.00000,-165.00000
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Chief Scientist(s) --- Dave Scholl
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Name of vessel --- Lee (surface ship)
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Date field data collection started --- 07/19/81 LV DUTCH HARBOR, AK
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Date field data collection ended --- 08/13/81 ARRIVE DUTCH HARBOR, AK
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Parameters surveyed ---
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Bathymetry: surveyed, contained in data file
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Magnetics: surveyed, contained in data file
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Gravity: surveyed, contained in data file
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High-resolution seismics: (unspecified)
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Deep penetration seismics: (unspecified)
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Format --- (I1,A8,F5.2,4I2,F5.3,F8.5,F9.5,I1,F6.4,F6.1,I2,i1,3F6.1,I1,F5.1,F6.0,F7.1,F6.1,F5.1,A8,4I1)
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Date of data input to NGDC --- 06/17/87
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Contributing institution --- USGS Branch of Pacific Marine Geology
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Country --- United States
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Navigation instrumentation --- (unspecified)
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Position determination method --- (unspecified)
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Bathymetry instrumentation --- (unspecified)
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Additional forms of bathymetric data --- (unspecified)
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General rate of bathymetry in file --- 1.2 minutes
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General collection rate of bathymetry --- (unspecified)
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Assumed sound velocity --- (unspecified)
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Bathymetric datum code --- No correction applied (sea level)
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Bathmetry interpolation scheme --- (unspecified)
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Magnetics instrumentation --- (unspecified)
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Additional forms of magnetics data --- (unspecified)
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General rate of magnetics in file --- 1.1 minutes
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General collection rate of magnetics --- (unspecified)
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Magnetic sensor tow distance --- (unspecified)
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Magnetic sensor depth --- (unspecified)
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Two sensor horizontal separation --- (unspecified)
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Residual magnetics reference field --- (unspecified)
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Method of applying residual field --- (unspecified)
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Gravity instrumentation --- (unspecified)
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Additional forms of gravity data --- (unspecified)
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General rate of gravity in file --- 1.0 minutes
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General collection rate of gravity --- (unspecified)
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Theoretical gravity formula --- (unspecified)
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Reference system --- (unspecified)
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Corrections applied --- (unspecified)
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Starting land tie --- (unspecified)
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Ending land tie --- (unspecified)
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Seismic instrumentation --- (unspecified)
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Formats of seismic data --- (unspecified)
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Publications
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Childs, Jonathan R., Scholl, David W., and Vallier, Tracy L., 1981, Onshore and offshore studies,
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Amlia Island area, Aleutian Ridge, in Albert, N.R., and Hudson, Travis, eds., The United States
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Geological Survey in Alaska; accomplishments during 1979: U.S. Geological Survey Circular 0823-B,
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p. 134-137.
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McCarthy, Jill, Stevenson, Andrew J., Scholl, David W., and Vallier, Tracy L., 1984, Speculations on
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the petroleum geology of the accretionary body; an example from the central Aleutians: Marine and
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Petroleum Geology, v. 1, no. 2, p. 151-167.
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McCarthy, Jill, and Scholl, David W., 1985, Mechanisms of subduction accretion along the
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central Aleutian Trench: Geological Society of America Bulletin, v. 96, no. 6, p. 691-701.
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Harbert, W.P., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
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Geologic and tectonic history of Atka Basin, Aleutian Ridge, in American Geophysical Union
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1982 fall meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.
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McCarthy, J., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
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Mechanisms of accretion along the Aleutian Trench, in American Geophysical Union 1982 fall
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meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.
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Harbert, William, Scholl, David W., Vallier, Tracy L., Stevenson, Andrew J., and Mann, D.M., 1986,
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Major evolutionary phases of a forearc basin of the Aleutian Terrace; relation to North Pacific
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tectonic events and the formation of the Aleutian subduction complex: Boulder, CO, Geology,
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v. 14, no. 9, p. 757-761.
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McCarthy, Jill, Scholl, David W., and Sleep, Norman H., 1983, Accretionary structures along
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the central Aleutian Trench: American Geophysical Union Eos, Transactions, v. 64, no. 45, p. 870.
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McCarthy, Jill, 1987, Seismic reflection imaging of plate boundaries; examples from the
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central Aleutians, the North Atlantic, and the Basin and Range Province of the Western U.S.:
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Stanford, CA, Stanford University Ph. D. Dissertation.
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Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1987, Evolution and petroleum
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geology of Amlia and Amukta intra-arc summit basins, Aleutian Ridge: Marine and Petroleum
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Geology, v. 4, no. 4, p. 334-352.
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Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1985, Extensional structures
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on the Aleutian Ridge, Alaska: American Geophysical Union Eos, Transactions, v. 66, no. 46,
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p. 1072.
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Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1988, The origin of summit
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basins of the Aleutian Ridge; implications for block rotation of an arc massif: Tectonics,
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v. 7, no. 2, p. 327-341.
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Scholl, David W., Mann, Dennis M., Vallier, Tracy L., and Sliter, Ray W., 1988, Multichannel
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seismic-reflection data collected in 1981 across the Aleutian Arc and Trench, Alaska:
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U.S. Geological Survey Open-File Report 88-0592, 4 p. 2 sheets.
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Got Help?
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For L-9-81-AA, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, information to be derived, kms of navigation, national plan, notes, organization, owner, project, project number, purpose, scanned materials, seismic description, station count, station description, submersible, summary, tabulated info.
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