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ID
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G-75-80-AT
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Also Known As
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DSDP75GC
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Abstract
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Chief Scientists: W. Hay, J. Sibvet. Geological and
Geophysical data (transitsatellite, 3dot5khz, 12khz,
magnetics, airgun, bathymetry, drillcore) of field activity
G-75-80-AT in Atlantic Ocean from 07/27/1980 to 09/21/1980
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Project/Theme
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Deep Sea Drilling Project
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Chief Scientist
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W. Hay
J. Sibvet
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Activity Type
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Geological and Geophysical
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Platform
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Glomar Challenger
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Area of Operation
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Atlantic Ocean
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Bounding Coordinates
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34.31640
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-73.32530 12.86030 |
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-21.66650 |
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Ports
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leave Walvis Bay, South Africa
arrive Recife, Brazil
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Dates
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07/27/1980 (JD 209) to 09/21/1980 (JD 265)
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Analog Materials
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list
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Crew
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W. Hay
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Chief Scientist
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J. Sibvet
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Chief Scientist
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Equipment Used
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transitsatellite
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3dot5khz
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12khz
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magnetics
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airgun
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bathymetry
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drillcore
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NGDC Overview
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! Converted to time format with year at start.
!
DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data)
MCG Data Collection ID --- G7580AT
Institution Data Collection ID --- DSDP75GC
NGDC ID --- 15050074
Funding --- (unspecified)
Project, Cruise & Leg --- DEEPSEA DRILL.LG75
Study region --- +35.00000,-22.00000, -74.00000, +13.00000
Chief Scientist(s) --- HAY W.,SIBVET J.
Name of vessel --- D/V GLOMAR CHALLENGER (surface ship)
Date field data collection started --- 07/27/80 WALVIS BAY,AFRICA
Date field data collection ended --- 09/21/80 NORFOLK,VIRGINIA
Parameters surveyed ---
Bathymetry: surveyed, contained in data file
Magnetics: surveyed, contained in data file
Gravity: not surveyed
High-resolution seismics: surveyed, but not contained in data file
Deep penetration seismics: surveyed, but not 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 --- 10/07/81
Contributing institution --- SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country --- USA
Navigation instrumentation --- SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Position determination method --- LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry instrumentation --- 3.5-12KHZ/EDO 550A RECORDERS/WIDE BEAM
Additional forms of bathymetric data --- ANAL.RECORDS,CARDS,35MMFILM
General rate of bathymetry in file --- 5.0 minutes
General collection rate of bathymetry --- 1SECONDSWEEP
Assumed sound velocity --- 1500.0 m/sec
Bathymetric datum code --- No correction applied (sea level)
Bathmetry interpolation scheme --- 5 MINUTE INTERVAL
Magnetics instrumentation --- GEOMETRICS MAGNETOMETER MOD G-801/3
Additional forms of magnetics data --- ANAL.RECORDS,CARDS,35MMFILM
General rate of magnetics in file --- 5.0 minutes
General collection rate of magnetics --- 6 seconds
Magnetic sensor tow distance --- (unspecified)
Magnetic sensor depth --- (unspecified)
Two sensor horizontal separation --- (unspecified)
Residual magnetics reference field --- IGRF-75
Method of applying residual field --- LIN. INTERP.POINTS WITHIN ONE DEGREE
SQUARE
Seismic instrumentation --- 20TO300CU.IN.AIRGUN,10-300HZ,EDO 550 REC
Formats of seismic data --- ANAL.RECORDS,35MM MICROFILM
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Publications
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Got Help?
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For G-75-80-AT, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, information to be derived, kms of navigation, national plan, notes, organization, owner, project number, purpose, scanned materials, seismic description, station count, station description, submersible, summary, tabulated info.
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