Survey Identifier: DSDP52GC
Format Acronym: MGD77
Data Center File Number: 15050051
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19791129
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: D/V GLOMAR CHALLENGER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): BRYAN W.,ROBINSON P.T.
Project: DEEPSEA DRILL.LG 52 <NSF>
Survey Departure Date (yyyymmdd): 19770122
Port of Departure: SAN JUAN,PUERTO RICO
Survey Arrival Date (yyyymmdd): 19770309
Port of Arrival: SAN JUAN,PUERTO RICO
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/EDO 550A RECORDER/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: +26
Bottommost Latitude: +18
Leftmost Longitude: -069
Rightmost Longitude: -066
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: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 3531
Min/Max Data Record:
Date: 1977 01 22
Latitude: +18.64280
Longitude: -68.15500
Bathymetry, 2- Way Traveltime: 019475
Bathymetry, Corrected Depth: 1465.0
Magnetics Total Field, 1st Sensor: 418800
Magnetics Residual Field: -08400
Min/Max Data Record:
Date: 1977 03 09
Latitude: +25.16700
Longitude: -66.14990
Bathymetry, 2- Way Traveltime: 109800
Bathymetry, Corrected Depth: 8440.0
Magnetics Total Field, 1st Sensor: 466800
Magnetics Residual Field: -03430