Survey Identifier: DSDP26GC


Format Acronym: MGD77
Data Center File Number: 15050024
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791124
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LUYENDYK B.,DAVIES T.
Project: DEEPSEA DRILL.LG 26 <NSF>
Survey Departure Date (yyyymmdd): 19720906
Port of Departure: DURBAN,SOUTH AFRICA
Survey Arrival Date (yyyymmdd): 19721029
Port of Arrival: PERTH,AUSTRALIA
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: -23
Bottommost Latitude: -38
Leftmost Longitude: +031
Rightmost Longitude: +116
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN.INTERP.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 7135

Min/Max Data Record:
Date: 1972 09 06
Latitude: -83.08150
Longitude: +23.05940
Bathymetry, 2- Way Traveltime: 002900
Bathymetry, Corrected Depth: 219.0
Magnetics Total Field, 1st Sensor: 299150
Magnetics Residual Field: -09400

Min/Max Data Record:
Date: 1972 10 29
Latitude: -23.42860
Longitude: +115.19980
Bathymetry, 2- Way Traveltime: 083074
Bathymetry, Corrected Depth: 6296.0
Magnetics Total Field, 1st Sensor: 595300
Magnetics Residual Field: +04400