Survey Identifier: ODP139JR
Format Acronym: MGD77
Data Center File Number: 23060043
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: TEXAS A+M UNIVERSITY
Country: USA
Platform Name: JOIDESRESOLUTION
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): E.DAVIS, M.MOTTL, A.FISHER
Project: OCEAN DRILLING PROGRAM LEG 139
Survey Departure Date (yyyymmdd): 19910710
Port of Departure: SAN DIEGO, CALIFORNIA
Survey Arrival Date (yyyymmdd): 19910911
Port of Arrival: VICTORIA, BRITISH COLOMBIA
Navigation Instrumentation: MAGNAVOX TRANSIT & GPS & LORAN C
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5&12KHZ PDR
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG.TAPE
Magnetics Instrumentation: GEOMETRICS 801 PROTON
Additional Forms of Magnetics Data: ANAL.REC,35MM FILM,DIGITAL MAG.TAPE
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: WATER GUNS S-80
Formats of Seismic Data: ANAL.REC, 35MM FILM, DIGITAL MAG TAPE
Topmost Latitude of Survey: +49
Bottommost Latitude: +32
Leftmost Longitude: -129
Rightmost Longitude: -117
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 (DEPTHS PICKED AT 5 MINUTE INTERVALS)
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: IG
Reference Field: RF-85
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE PLANE
Additional Documentation: PROCESSED BY GEOLOGICAL DATA CENTER-SIO FOR OCEAN DRILLING PROJECT. ORIGINAL RECORDS ARCHIVED AT ODP, NAVIGATION ON/OFF SITES MAY BE INACCURATE DUE TO INSUFFICIENT COURSE, AND SPEED DATA. 1 MINUTE GPS FIXES ARE USED ON THE SURVEY BEFORE THE, SITE WHEN AVAILABLE.
Number of Data Records: 6583
Min/Max Data Record:
Date: 1991 07 11
Latitude: +32.61917
Longitude: -128.77833
Bathymetry, 2- Way Traveltime: 000960
Bathymetry, Corrected Depth: 72.0
Magnetics Total Field, 1st Sensor: 479870
Magnetics Residual Field: -05754
Min/Max Data Record:
Date: 1991 09 11
Latitude: +48.48734
Longitude: -117.22536
Bathymetry, 2- Way Traveltime: 041640
Bathymetry, Corrected Depth: 3100.0
Magnetics Total Field, 1st Sensor: 556630
Magnetics Residual Field: +10619