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USGS Coastal and Marine Geology Program

Field Activity Details for field activity G6879CP

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AKA: DSDP68GC

Other ID: none

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): J.R. Cann

Affiliate Investigator(s): S.M. White

Information Specialist(s):

Data Type(s): Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Sampling: Geology, Seismics: Air Gun / Water Gun, Sonar: Single Beam, Seismics: Sub Bottom Profiler

Scientific Purpose/Goals:

Vehicle(s):

Start Port/Location: Willemstad, Curacao

End Port/Location: Guayaquil, Ecuador

Start Date: 1979-05-05

End Date: 1979-09-18

Equipment Used: transitsatellite, core, airgun, 12khz, 3.5khz, bathymetry

Information to be Derived:

Summary of Activity and Data Gathered: DATA COLLECTION OVERVIEW (use NGDC GEODAS CD to retrieve data) MCG Data Collection ID --- G6879CP Institution Data Collection ID --- DSDP68GC NGDC ID --- 15050067 Funding --- (unspecified) Project, Cruise & Leg --- DEEPSEA DRILL.LG 68 Study region --- +13.00000, -3.00000, -96.00000, -71.00000 Chief Scientist(s) --- CANN J.R.,WHITE S.M. Name of vessel --- D/V GLOMAR CHALLENGER (surface ship) Date field data collection started --- 07/05/79 PUNTARENAS,COSTA RICA Date field data collection ended --- 09/18/79 LA LIBERTAD,EQUADOR 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

Staff:

Affiliate Staff:

Notes: ID created in Compass 8/22/2018 for warehouse holdings.
Core Data from the Deep Sea Drilling Project, Leg 68:
http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/68/leg68.htm

Location:

Central America, Pacific and Atlantic Oceans

Boundaries
North: 22.52647521 South: -3.07609596 West: -99.0504998 East: -64.8708123

Platform(s):

photo of Glomar Challenger
Glomar Challenger

Publications

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
transitsatellite --- Navigation
core --- Biology
Geology
airgun --- Air Gun / Water Gun
12khz --- Single Beam
3.5khz --- Sub Bottom Profiler
bathymetry --- Single Beam

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