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Metadata
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ID
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L-12-81-NP
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Also Known As
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L-12-81-NP
L-C-81-NP
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Abstract
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Chief Scientists: Dennis Mann, Don Tompkins. Data (12khz,
3dot5khz, gravity, landtie, courserecorder, dopplersonar,
integratednavigation, RhoRho, transitsatellite, 24channel,
airgun, sonobuoy) of field activity L-12-81-NP in North
Pacific Ocean from 09/19/1981 to 10/05/1981
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Chief Scientist
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Dennis Mann
Don Tompkins
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Platform
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Samuel Phillips Lee
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Area of Operation
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North Pacific Ocean
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Location map
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Bounding Coordinates
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45.35836
-130.79816 -122.11925
37.50413
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Ports
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leave Redwood City, CA
arrive Treasure Island, CA
leave Crescent City, CA
arrive Crescent City, CA
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Dates
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09/19/1981 (JD 262) to 10/05/1981 (JD 278)
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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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Dennis Mann
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Chief Scientist
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Don Tompkins
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Chief Scientist
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Aaron Dunwald
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Chief Engineer
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Allen Adams
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Watchstander
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Barb Blubaugh
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Dafe Curator
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Barbara Seekins
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Watchstander
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Chris Gutmacher
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Geologist
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Dan Hurlbert
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Mechanical Technician
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Dave Hogg
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Electronics Technician
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Dave Melendrez
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Chief Mate
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Greg Smith
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Watchstander
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Jan Morton
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Geologist
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Kaye Kinoshita
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Navigator
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Kevin O'Toole
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Mechanical Technician
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Lisa Gossett
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Navigator
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Mark Breitbart
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Watchstander
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Mike Casey
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Watchstander
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Roy Fields
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Electronics Technician
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Terry Ruff
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Ship Captain
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Equipment Used
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12khz
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3dot5khz
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gravity
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landtie
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courserecorder
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dopplersonar
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integratednavigation
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RhoRho
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transitsatellite
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24channel
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airgun
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sonobuoy
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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 --- L1281NP
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Institution Data Collection ID --- L1281NP
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NGDC ID --- 06050060
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Funding --- (unspecified)
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Project, Cruise & Leg --- (unspecified)
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Study region --- +46.00000,+37.00000,-131.00000,-122.00000
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Chief Scientist(s) --- Don Tompkins
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Name of vessel --- Lee (surface ship)
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Date field data collection started --- 09/19/81 LV REDWOOD CITY
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Date field data collection ended --- 10/05/81 ARRIVE TREASURE ISLAND
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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 --- 05/04/88
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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,INTAEGRATED NAV,LORAN C
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Position determination method --- SATNAV,LORAN C
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Bathymetry instrumentation --- 12KHZ NARROW 1 SEC,3.5KHZ WIDE 1 SEC
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Additional forms of bathymetric data --- ANALOG
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General rate of bathymetry in file --- 1.9 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
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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 INTERPOLATION BETWEEN NAV PTS
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Gravity instrumentation --- L&R S-53
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Additional forms of gravity data --- ANALOG
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General rate of gravity in file --- 2.0 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 --- 979951.5 PIER 5 REDWOOD CITY
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Ending land tie --- 979977.4 PIER 21 TREASURE IS
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Seismic instrumentation --- UNIBOOM, SINGLE CHANNEL,24 CHANNEL
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Formats of seismic data --- ANALOG ROLLS, DIGITAL
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Publications
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Morton, Janet L., Sleep, Norman H., Normark, William R., and Tompkins, Donald H., 1987,
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Structure of the southern Juan de Fuca Ridge from seismic reflection records, in Special
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section on The southern Juan de Fuca Ridge; hydrothermal fluids, sulfides, and geophysical
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studies [modified]: Journal of Geophysical Research, B, Solid Earth and Planets, v. 92,
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no. 11, p. 11,315-11,326.
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Morton, Janet L., Normark, William R., Mann, Dennis M., and Tompkins, Donald H., 1987, Geology,
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evolution, and mineral potential of the Juan de Fuca Ridge, in Scholl, David W.,
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Grantz, Arthur, and Vedder, John G., eds., Geology and resource potential of the continental
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margin of western North America and adjacent ocean basins, Beaufort Sea to Baja California:
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Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 6, p. 537-547.
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Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., 1994, Geologic,
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hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern
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California: U.S. Geological Survey Bulletin 2022, 359 p.
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Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., 1994, Geologic,
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hydrothermal, and biologic studies at Escanaba Trough; an introduction, in Morton,
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Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., Geologic, hydrothermal,
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and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
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U.S. Geological Survey Bulletin 2022, p. 1-18.
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Morton, Janet L., and Fox, Christopher G., 1994, Structural setting and interaction
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of volcanism and sedimentation at Escanaba Trough; geophysical results, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 21-43.
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Davis, Earl E., and Becker, Keir, 1994, Thermal and tectonic structure of Escanaba
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Trough; new heat-flow measurements and seismic-reflection profiles, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 45-64.
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Denlinger, Roger P., and Holmes, Mark L., 1994, A thermal and mechanical model for
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sediment hills and associated sulfide deposits along Escanaba Trough, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 65-75.
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Karlin, Robert E., and Morton, Janet L., 1994, Crustal magnetization and basement
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structure of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol
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A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge,
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offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 77-90.
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Normark, William R., Gutmacher, Christina E., Zierenberg, Robert A., Wong, Florence L.,
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and Rosenbauer, Robert J., 1994, Sediment fill of Escanaba Trough, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 91-129.
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Karlin, Robert E., and Zierenberg, Robert A., 1994, Sedimentation and neotectonism
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in the SESCA area, Escanaba Trough, southern Gorda Ridge, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 131-141.
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Ross, Stephanie L., and Zierenberg, Robert A., 1994, Volcanic geomorphology of the SESCA
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and NESCA sites, Escanaba Trough, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 143-151.
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Davis, Alice S., Clague, David A., and Friesen, Walter B., 1994, Petrology and mineral
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chemistry of basalt from Escanaba Trough, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 153-170.
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Zierenberg, Robert A., Morton, Janet L., Koski, Randolph A., and Ross, Stephanie L., 1994,
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Geologic setting of massive sulfide mineralization in Escanaba Trough, in Morton, Janet
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L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
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studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
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Survey Bulletin 2022, p. 171-197.
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Campbell, Andrew C., German, Chris R., Palmer, Martin R., Gamo, Toshitaka, and Edmond,
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John M., 1994, Chemistry of hydrothermal fluids from Escanaba Trough, Gorda Ridge, in
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Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal,
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and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
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U.S. Geological Survey Bulletin 2022, p. 201-221.
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Bohlke, J.K., and Shanks, W.C., III, 1994, Stable isotope study of hydrothermal vents
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at Escanaba Trough; observed and calculated effects of sediment-seawater interaction,
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in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal,
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and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
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U.S. Geological Survey Bulletin 2022, p. 223-239.
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Magenheim, Andrew J., and Gieskes, Joris M., 1994, Evidence for hydrothermal fluid flow
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through surficial sediments, Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A.,
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Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
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Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
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p. 241-255.
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Zierenberg, Robert A., and Shanks, Wayne C., III, 1994, Sediment alteration associated
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with massive sulfide formation in Escanaba Trough, Gorda Ridge; the importance of seawater
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mixing and magnesium metasomatism, in Morton, Janet L., Zierenberg, Robert A., Reiss,
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Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
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Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
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p. 257-277.
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Kvenvolden, Keith A., Rapp, John B., and Hostettler, Frances D., 1994, Hydrocarbons in
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sediment from Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss,
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Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
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Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
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p. 279-292.
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Koski, Randolph A., Benninger, Laura M., Zierenberg, Robert A., and Jonasson, Ian R.,
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1994, Composition and growth history of hydrothermal deposits in Escanaba Trough,
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southern Gorda Ridge, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A.,
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eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge,
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offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 293-324.
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Grassle, J. Frederick, and Petrecca, Rosemarie F., 1994, Soft-sediment hydrothermal
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vent communities of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A.,
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Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba
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Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin
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2022, p. 327-335.
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Got Help?
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For L-12-81-NP, we would appreciate any information on -- activity type, 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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