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Metadata
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ID
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L-5-80-AA
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Abstract
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Chief Scientist: Dave Scholl. Geophysical, geological data
(airgun, sonobuoy, 3dot5khz, 12khz, gravity, magnetics,
bathgravnav, chaindredge, integratednavigation,
deadreckoning, dopplersonar, RhoRho, transitsatellite,
24channel, airgunmonitor) of field activity L-5-80-AA in
Aleutian Arc, Alaska from 06/23/1980 to 07/05/1980
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Chief Scientist
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Dave Scholl
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Activity Type
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Geophysical, geological
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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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57.78194
-175.00967 -152.03867
50.48417
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Ports
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leave Kodiak, AK
arrive Dutch Harbor, AK
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Dates
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06/23/1980 (JD 175) to 07/05/1980 (JD 187)
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Analog Materials
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list
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Index map
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Information Specialist
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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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Chris Gibson
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Watchstander
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Chris Gutmacher
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Watchstander
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Dave Scholl
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Chief Scientist
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Dennis Mann
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Watchstander
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Frank Johnson
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Chief Mate
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Guy Cochrane
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Navigator
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Harry Hill
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Electronics Technician
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Jackie Eaby
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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 Greenberg
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Watchstander
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Margaret Goud
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Navigator
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Merid Dates
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Watchstander
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Paul Wenberg
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Mechanical Technician
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Richard Heagney
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Ship Captain
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Roy Fields
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Electronics Technician
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Tracy Vallier
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Geophysicist
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Equipment Used
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airgun
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sonobuoy
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3dot5khz
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12khz
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gravity
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magnetics
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bathgravnav
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chaindredge
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integratednavigation
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deadreckoning
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dopplersonar
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RhoRho
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transitsatellite
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24channel
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airgunmonitor
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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 --- L580AA
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Institution Data Collection ID --- L580AA
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NGDC ID --- 06050035
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Funding --- (unspecified)
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Project, Cruise & Leg --- (unspecified)
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Study region --- +58.00000,+50.00000,-175.00000,-152.00000
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Chief Scientist(s) --- DAVE SCHOLL / TRACY VALLIER
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Name of vessel --- Lee (surface ship)
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Date field data collection started --- 06/23/80 LEAVE KODIAK
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Date field data collection ended --- 07/05/80 ARRIVE DUTCH HARBOR
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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 --- 06/12/87
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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 --- SATNAV,INTEGRATED NAVIGATION
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Position determination method --- PRIM-SATNAV SEC-INTEGRATED NAV
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Bathymetry instrumentation --- 12KHZ NARROW 1 SEC, 3.5KHZ WIDE 1 SEC
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Additional forms of bathymetric data --- RECORDER ROLLS
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General rate of bathymetry in file --- 2.0 minutes
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General collection rate of bathymetry --- 20/SECONDS
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Assumed sound velocity --- 1463.0 m/sec
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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 --- PROTON PRECESSION MAG-GEOMETRICS G-801
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Additional forms of magnetics data --- ANALOG RECORDS
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General rate of magnetics in file --- 1.0 minutes
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General collection rate of magnetics --- 4 seconds
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Magnetic sensor tow distance --- 213 meters
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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 --- IGRF-75
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Method of applying residual field --- LINEAR INTERP.BETWEEN NAV POINTS
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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 --- 15 seconds
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Theoretical gravity formula --- International 1930
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Reference system --- System IGSN 71
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Corrections applied --- DRIFT CORRECTIONS
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Starting land tie --- 968857.3 KODIAK, AK.
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Ending land tie --- (unspecified value) (unspecified
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Seismic instrumentation --- SINGLE CHANNEL, 24 CHANNEL
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Formats of seismic data --- ANALOG RECORDS
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Publications
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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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Mann, Dennis M., Scholl, David W., and Sliter, Ray W., 1989, Multichannel seismic-reflection
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data collected in 1980 across the Aleutian Arc and Trench, Alaska: U.S. Geological Survey
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Open-File Report 89-0202, 4 p., 1 sheet.
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Got Help?
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For L-5-80-AA, we would appreciate any information on -- information to be derived, equipment used, information specialist, organization, project, publications, purpose, summary.
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