USGS CMG G-18-71-NP Metadata

Scripps Institution of Oceanography

! Converted to time format with year at start.
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DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         G1871NP
Institution Data Collection ID --- DSDP18GC
NGDC ID ---                        15050016
Funding ---                        (unspecified)
Project, Cruise & Leg ---          DEEPSEA DRILL.LG 18 
Study region ---                   +58.00000,+21.00000,-158.00000,-124.00000
Chief Scientist(s) ---             KULM L.,VON HUENE R.
Name of vessel ---                 D/V GLOMAR CHALLENGER (surface ship)
Date field data collection started --- 05/29/71     HONOLULU,HAWAII
Date field data collection ended ---   07/18/71     KODIAK,ALASKA
Parameters surveyed ---
   Bathymetry:                     surveyed, contained in data file
   Magnetics:                      surveyed, contained in data file
   Gravity:                        not surveyed
   High-resolution seismics:       not surveyed
   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 ---     11/22/79
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 ---            12KHZ/GIFFT RECORDER/WIDE(60DEG)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 ---                1463.0 m/sec
Bathymetric datum code ---                No correction applied (sea level)
Bathmetry interpolation scheme ---        5 MINUTE INTERVAL

Magnetics instrumentation ---            VARIAN MFD PROTON PRECESSION MOD 4970
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-65
Method of applying residual field ---    LIN.INTERP.AT 30DEG C/C OR 500MI ALONG 
TRACK

Seismic instrumentation --- 20TO300CU.IN.AIRGUN,10-300HZ,EDO PSR REC
Formats of seismic data --- ANAL.RECORDS,35MM MICROFILM

Notes ---
*TIME*NAV AND RECORDS ORIGINALLY IN LOCAL TZ. DIGITIZED DATA CONVERTED TO GMT.

Kulm, La Verne D., Prince, Roger A., and Snavely, Parke D., Jr., 1973, Appendix 
I, Part A;
Site survey of the northern Oregon continental margin and Astoria Fan, in 
Musich, Lillian F.,
and Weser, Oscar E., eds., Initial reports of the Deep Sea Drilling Project, 
covering Leg 18
of the cruises of the drilling vessel Glomar Challenger, Honolulu, Hawaii to 
Kodiak, Alaska
May-July 1971: Initial Reports of the Deep Sea Drilling Project, v. 18, p. 
979-987.


Core Data from the Deep Sea Drilling Project, Leg 18:
http://www.ngdc.noaa.gov/mgg/geology/dsdp/data/18/leg18.htm