Survey Identifier: DSDP67GC
Format Acronym: MGD77
Data Center File Number: 15050066
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19811007
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): VON HUENE R.,AUBOUIN J.
Project: DEEPSEA DRILL.LG 67 <NSF>
Survey Departure Date (yyyymmdd): 19790509
Port of Departure: MANZANILLO,MEXICO
Survey Arrival Date (yyyymmdd): 19790625
Port of Arrival: PUNTARENAS,COSTA RICA
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/EDO 550A RECORDERS/WIDE BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS,35MMFILM
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +19
Bottommost Latitude: +09
Leftmost Longitude: -105
Rightmost Longitude: -085
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 6262
Min/Max Data Record:
Date: 1979 05 09
Latitude: +9.78369
Longitude: -104.17501
Bathymetry, 2- Way Traveltime: 000900
Bathymetry, Corrected Depth: 68.0
Magnetics Total Field, 1st Sensor: 376020
Magnetics Residual Field: -01820
Min/Max Data Record:
Date: 1979 06 27
Latitude: +18.77330
Longitude: -85.67620
Bathymetry, 2- Way Traveltime: 087275
Bathymetry, Corrected Depth: 6624.0
Magnetics Total Field, 1st Sensor: 424190
Magnetics Residual Field: +04460