USGS CMG L-6-80-BS Metadata

! Converted to time format with year at start.
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DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         L680BS
Institution Data Collection ID --- L680BS
NGDC ID ---                        06050036
Funding ---                        (unspecified)
Project, Cruise & Leg ---          N.BERING SEA
Study region ---                   +66.00000,+53.00000,+179.00000,-165.00000
Chief Scientist(s) ---             MIKE MARLOW, ALAN COOPER
Name of vessel ---                 Lee (surface ship)
Date field data collection started --- 07/06/80     DUTCH HARBOR,ALASKA
Date field data collection ended ---   08/01/80     NOME,ALASKA
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 ---     06/12/87
Contributing institution ---       USGS Branch of Pacific Marine Geology
Country ---                        United States

Navigation instrumentation ---     SAT/LRNC/GYCOMP/SPDLOG/DOPPSONAR/RHO-RHO
Position determination method ---   PRIM-SAT, SECOND-LORAN-C, DRS

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 ---    3.2 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 ---            PROTON PRECESSION MAG-GEOMETRICS
Additional forms of magnetics data ---   ANALOG RECORDS
General rate of magnetics in file ---    1.0 minutes
General collection rate of magnetics --- 4 seconds
Magnetic sensor tow distance ---         213 meters
Magnetic sensor depth ---                (unspecified)
Two sensor horizontal separation ---     (unspecified)
Residual magnetics reference field ---   IGRF-75
Method of applying residual field ---    MEASURED MAGS-(IGRF75 + ANNUAL CHANGES)

Gravity instrumentation ---            L&R S-53
Additional forms of gravity data ---   ANALOG STRIP CHARTS
General rate of gravity in file ---    1.0 minutes
General collection rate of gravity --- 20 seconds
Theoretical gravity formula ---        IAG System 1967
Reference system ---                   (unspecified)
Corrections applied ---                DRIFT CORR APPLIED START AND END
Starting land tie ---                  968858.4  DUTCH HARBOR, AK
Ending land tie   ---                  (unspecified value)  NOME, AK

Seismic instrumentation --- 24-CHANN,2400M STREAMER,GUS 4200 DIG REC
Formats of seismic data ---  14 SECTIONS MICROFILM, POST-NAV PLOT

Notes ---
BATH-DATA DIGITIZED MANUALLY BY USGS UNDER CONTRACT TO DEFENCE MAPPING AGENCY
ITIZING INTERVAL VARIABLE, DEPENDING UPON GRADIENTS, BUT SAMPLES SHOULD BE
RECORDED AT LEAST EVERY 5 MIN.,WITH INFLECION POINTS.  FOR INFOR CONTACT:
JON CHILDS, U.S.G.S. (703) 860-7241 OR (415) 856-7094
CDP RECORDED AT 2-MSEC,PROCESSED AT 4-MSEC. 1ST 10 SEC EDITED, STACKED,
DECONVOLVED,FILTERED,DISPLAYED.  DIGITAL SHOT-PT NAV, DIGITAL TIME/VEL PAIRS.

Childs, J.R., Cooper, A.K., and Wright, A.W., 1981, Residual magnetic map of
Umnak Plateau region, southeastern Bering Sea: U.S. Geological Survey
Geophysical Investigations Map GP-0939, 1 sheet.

Marlow, Michael S., Cooper, Alan K., and Childs, Jonathan R., 1981, Geophysical
survey of Anadyr and Navarin basins, northern Bering Sea, in 1981 American
Association of Petroleum Geologists annual convention with division; Society
For Sedimentary Geology/EMD/DPA: American Association of Petroleum Geologists
Bulletin, v. 65, no. 5, p. 953.

Marlow, Michael S., Cooper, Alan K., and Childs, Jonathan R., 1983, Tectonic
evolution of Gulf of Anadyr and formation of Anadyr and Navarin basins:
American Association of Petroleum Geologists Bulletin, v. 67, no. 4, p. 646-665.

Marlow, Michael S., Cooper, A.K., Smith, G.L., and Chase, T.E., 1982,
Multichannel seismic-reflection profiles collected in 1980 in the northern
Bering Sea: U.S. Geological Survey Open-File Report 82-1090, 3 p. URL:
http://pubs.er.usgs.gov/publication/ofr821090
Additional publication information at:
http://www.dggs.dnr.state.ak.us/pubs/id/12321

Cooper, A.K., Marlow, M.S., and Magistrale, Harold, 1983, Digital gravity and
magnetic data collected in 1980 in the northern Bering Sea: U.S. Geological
Survey Open-File Report 83-0519, 4 p.

Cooper, Alan K., Marlow, Michael S., Geist, Eric L., and Smith, Gregory L.,
1991, Multichannel seismic-reflection profiles collected in 1980 from southern
Bering Sea, Alaska: U.S. Geological Survey Open-File Report 91-0317, 4 p. URL:
http://pubs.er.usgs.gov/publication/ofr91317
Additional publication information at:
http://www.dggs.dnr.state.ak.us/pubs/id/11817