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ID L-1-84-AN
Abstract United States Geological Survey, Menlo Park, California. Chief Scientists: Monty Hampton, Steve Eittreim. Geological and Geophysical data (12khz, 3dot5khz, gravity, sidescansonar, uniboom, airgun, sonobuoy, tempsalinometer, 24channel, gravitycore, chaindredge, gradiometer, expendablebatthermograph, airgunmonitor) of field activity L-1-84-AN in Antarctica from 01/04/1984 to 02/01/1984
Organization United States Geological Survey, Menlo Park, California
Chief Scientist Monty Hampton
Steve Eittreim
Activity Type Geological and Geophysical
Platform Samuel Phillips Lee
Area of Operation Antarctica, Southern Ocean
Bounding Coordinates
-43.58359
129.74580     173.18375
-77.10433
Ports leave Lyttleton, NZ
arrive McMurdo Station, Ant
Dates 01/04/1984 (JD 004) to 02/01/1984 (JD 032)
Analog Materials list
Crew
Al McClenaghan Ship Captain
Aaron Dunwald Chief Engineer
Barb Blubaugh Navigator
Bruce Richmond Geologist
Dave Hogg Electronics Technician
George Moore Geologist
Gerry O'Brien Mechanical Technician
Greg Smith Geologist
Hal Williams Mechanical Technician
Howard Stagg Geophysicist
Joe Kravitz Geologist, NOAA
John Veevers Geologist, MacQuarie U
Jon Childs Geophysicist
Keith Kvenvolden Geochemist
Kris Johnson Navigator
Larry Kooker Electronics Technician
Marge Golan-Bac Navigator
Monty Hampton Chief Scientist
Pat Moore Chief Mate
Peter Barnes Geologist
Steve Eittreim Chief Scientist
Equipment Used
12khz
3dot5khz
gravity
sidescansonar
uniboom
airgun
sonobuoy
tempsalinometer
24channel
gravitycore
chaindredge
gradiometer
expendablebatthermograph
airgunmonitor
Information to be Derived
Seismic reflection profiles, bathymetry, gravity, magnetics,
side scan, lithology
Summary
Approximately 900 km of 24-fold Common Depth Point (CDP)
seismic-reflection, gravity, magnetic gradiometer, and 3.5 and
12.5 kHz echo-sounding data were collected for the continental
margin of Wilkes Land, Antarctica.  Gravity and bathymetric data
were also collected for the transit line between Wilkes Land and
New Zealand.  The data were collected in 1984 by the U.S.
Geological Survey R/V S.P. LEE.  The seismic data source was a 5-
airgun array totaling 1,311 cu. in., pressurized to 2,000 psi,
towed at a depth of 10.5 m.  The receiver consisted of a 24-
channel hydrophone streamer, with 100-m group lengths containing
60 hydrophones i each group.  The near channel offset from the
airguns was 297 m.  The data were recorded with a GUS Model HDRR-
4200 recording system.

The magnetic gradiometer data were recorded continuously
with a Geometrics proton-precession marine gradiometer.  Two
proton-precession magnetometers, separated horizontally by 150 m,
were towed aft of the ship.  The near sensor was towed 300 m aft,
and both sensors were towed at a depth of approximately 50 m.
Data were measured at 4-sec intervals.  The gravity data were
recorded continuously with a LaCoste and Romberg sea gravimeter
on a 2-axis stabilized platform.  Data were collected at 20-sec
intervals and later desampled to 2 min or greater for plotting
and modeling.
NGDC Overview
! Converted to time format with year at start.
!
DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         L184AN
Institution Data Collection ID --- L184AN
NGDC ID ---                        06050068
Funding ---                        (unspecified)
Project, Cruise & Leg ---          ANTARCTIC / WILKES LAND MARGIN
Study region ---                   -43.00000,-78.00000,+129.00000,+174.00000
Chief Scientist(s) ---             STEVE EITTREIM,M.HAMPTON
Date field data collection started --- 01/04/84     LV LYTTLETON,NZ
Date field data collection ended ---   02/01/84     AR MCMURDO STATION,ANT
Parameters surveyed ---
   Bathymetry:                     surveyed, contained in data file
   Magnetics:                      surveyed, contained in data file
   Gravity:                        surveyed, contained in data file
   High-resolution seismics:       (unspecified)
   Deep penetration seismics:      surveyed, contained in data file
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)
Date of data input to NGDC ---     08/05/87
Contributing institution ---       USGS Branch of Pacific Marine Geology
Country ---                        United States

Navigation instrumentation ---     INTEGRATED NAV/LORAN-C/DOPPLER SONAR
Position determination method ---  SAT

Bathymetry instrumentation ---            3.5/12KHZ,1-4 SEC SWEEP,25/50 MS CESP
Additional forms of bathymetric data ---  ANALOG RECORDS, MICROFILM
General rate of bathymetry in file ---    0.8 minutes
General collection rate of bathymetry --- 1-4 SECOND
Assumed sound velocity ---                (unspecified)
Bathymetric datum code ---                No correction applied (sea level)
Bathmetry interpolation scheme ---         NO INTERPOLATION,DATA INTERVAL 1-5 
MIN. W/INFLECTIONS

Magnetics instrumentation ---            GEOMETRICS PROTON-PRECESSION 
GRADIOMETER
Additional forms of magnetics data ---   ANALOG RECORDS
General rate of magnetics in file ---    0.9 minutes
General collection rate of magnetics --- 3 seconds
Magnetic sensor tow distance ---         300 meters
Magnetic sensor depth ---                50.0 meters
Two sensor horizontal separation ---     150 meters
Residual magnetics reference field ---   IGRF-75
Method of applying residual field ---    LINEAR INTERP. BETWEEN NAV. PTS.

Gravity instrumentation ---            LACOSTE-ROMBERG S-53 SEA-GRAVIMETER
Additional forms of gravity data ---   ANALOG RECORDS
General rate of gravity in file ---    0.9 minutes
General collection rate of gravity --- 20 seconds
Theoretical gravity formula ---        IAG System 1967
Reference system ---                   System IGSN 71
Corrections applied ---                DRIFT,EOTVOS CORRECTIONS
Starting land tie ---                  980526.5   LYTTLETON, NEW ZEALAND
Ending land tie   ---                  980526.5   LYTTLETON, NEW ZEALAND

Seismic instrumentation --- 1313 CU.IN AIRGUN-24CHAN/UNIBOOM/3.5KHZ
Formats of seismic data --- ANALOG PAPER ROLL

Notes ---
BATHYMETRY DATA DIGITIZED MANUALLY BY U.S.G.S. FROM ANALOG RECORDS.
MAGNETIC FIELD, NOT FROM SINGL SENSOR.  RECONSTRUCTION METHOD
DEVELOPED BY GEOMETRICS, INC.
SIDESCAN SONAR, SONOBOUY
Publications
Eittreim, Stephen L., and Hampton, M.A., 1985, Marine geological and geophysical
investigations of the Wilkes Land continental margin, 1984: Antarctic Journal of 
the
United States, v. 19, no. 5, p. 82-84.

Eittreim, Stephen L., Hampton, Monty A., and Childs, Jonathan R., 1985, Seismic-reflection signature of Cretaceous continental breakup on the Wilkes Land margin, Antarctica: Science, v. 229, no. 4718, p. 1082-1084.

Eittreim, S.L., Hampton, Monty A., Childs, J.R., and Moore, G.W., 1984, The East Antarctic passive margin; structure and seismic stratigraphy across its continent-ocean boundary, in AGU 1984 fall meeting: American Geophysical Union Eos, Transactions, v. 65, no. 45, p. 1105.

Eittreim, S.L., Hampton, M.A., Smith, G.L., and Childs, J.R., 1986, Marine geophysical data from the Wilkes Land continental margin, Antarctica: U.S. Geological Survey Open-File Report 86-0339, 9 p.

Eittreim, Stephen L., and Hampton, Monty A., 1986, Prebreakup sedimentary and volcanic sequences on rifted continental margin of Wilkes Land, Antarctica: American Association of Petroleum Geologists Bulletin, v. 70, no. 7, p. 921.

Eittreim, S.L., Smith, G.L., Childs, Jonathan R., and Stagg, H.M.J., 1985, Moho topography and deep structure across the continent-ocean transition, Wilkes Land, Antarctica: American Geophysical Union Eos, Transactions, v. 66, no. 46, p. 1072.

Eittreim, Stephen L., and Hampton, Monty A., eds., 1987, The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, 221 p.

Moore, G.W., and Eittreim, Stephen L., 1987, Mechanism of extension and rifting at the Antarctica continental margin, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 89-97.

Childs, J.R., and Stagg, H.M.J., 1987, The deep crustal structure of the Wilkes Land continental margin, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 99-116.

Koenig, M., 1987, Geophysical data from the continental margin off Wilkes Land, Antarctica; implications for breakup and dispersal of Australia-Antarctica, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 117-145.

Chase, T.E., Seekins, B.A., Young, J.D., and Eittreim, Stephen L., 1987, Marine topography of offshore Antarctica, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 147-149.

Hampton, Monty A., Kravitz, J.H., and Luepke, Gretchen, 1987, Geology of sediment cores from the George V continental margin, Antarctica, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 151-174.

Barnes, P.W., 1987, Morphologic studies of the Wilkes Land continental shelf, Antarctica; glacial and iceberg effects, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 175-194.

Domack, E.W., 1987, Preliminary stratigraphy for a portion of the Wilkes Land continental shelf, Antarctica; evidence from till provenance, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 195-203.

Kvenvolden, K.A., Golan-Bac, Margaret, and Rapp, J.B., 1987, Hydrocarbon geochemistry of sediments offshore from Antarctica; Wilkes Land continental margin, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 205-213.

Truswell, E.M., 1987, The palynology of core samples from the S.P. Lee Wilkes Land cruise, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 215-218.

Moore, G.W., 1987, Provenance of glacial stones dredged off Wilkes Land, Antarctica, in Eittreim, Stephen L., and Hampton, Monty A., eds., The Antarctic continental margin; geology and geophysics of offshore Wilkes Land: Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, v. 5A, p. 219-221.

Barnes, Peter W., Edwards, Brian D., and Karl, Herman A., 1990, Morphologic, stratigraphic, and sedimentologic studies of surficial sediments off Wilkes Land and in the western Ross Sea, in Cooper, Alan K., and Webb, Peter N., eds., International workshop on Antarctic offshore acoustic stratigraphy (Antostrat); overview and extended abstracts: U.S. Geological Survey Open-File Report 90-0309, p. 42-43.

Childs, Jonathan R., and Cochrane, Guy R., 1990, Sonobuoy seismic data over the Ross Sea and Wilkes Land continental margins, in Cooper, Alan K., and Webb, Peter N., eds., International workshop on Antarctic offshore acoustic stratigraphy (Antostrat); overview and extended abstracts: U.S. Geological Survey Open-File Report 90-0309, p. 97-101.

http://www.ngdc.noaa.gov/mgg/fliers/86-MGG-27
Got Help? For L-1-84-AN, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, kms of navigation, national plan, notes, owner, project, project number, purpose, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Bathymetry data bath    
Gravity data grav    
Imagery data photos    
Magnetics data imag
mag
   
Metadata data     txt  data  FAQ  xml
Sensors data      
Navigation data nav    
Samples data samp    
Seismic data seis    
Times   070.times    

L-1-84-AN location map of where navigation 

equipment operated

 
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