USGS CMG L-11-80-WO Metadata

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DATA COLLECTION OVERVIEW  (use NGDC GEODAS CD to retrieve data)

MCG Data Collection ID ---         L1180WO
Institution Data Collection ID --- L1180WO
NGDC ID ---                        06050041
Funding ---                        (unspecified)
Project, Cruise & Leg ---          (unspecified)
Study region ---                   +49.00000,+45.00000,-127.00000,-123.00000
Chief Scientist(s) ---             Parke Snavely
Name of vessel ---                 Lee (surface ship)
Date field data collection started --- 10/19/80     PORT ANGELES WA
Date field data collection ended ---   10/26/80     ASTORIA OREGON
Parameters surveyed ---
   Bathymetry:                     (unspecified)
   Magnetics:                      surveyed, contained in data file
   Gravity:                        (unspecified)
   High-resolution seismics:       (unspecified)
   Deep penetration seismics:      (unspecified)
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 ---     06/12/87
Contributing institution ---       USGS Branch of Pacific Marine Geology
Country ---                        United States

Navigation instrumentation ---     SATNAV, LORAN-C, DOPPLER SONAR
Position determination method ---  PRIM-SATNAV, SEC-INTEGRATED NAV

Bathymetry instrumentation ---            12KHZ NARROW 1 SEC, 3.5KHZ WIDE 1 SEC
Additional forms of bathymetric data ---  RECORDER ROLLS
General rate of bathymetry in file ---    (unspecified)
General collection rate of bathymetry --- 20/SECONDS
Assumed sound velocity ---                1463.0 m/sec
Bathymetric datum code ---                No correction applied (sea level)
Bathmetry interpolation scheme ---        (unspecified)

Magnetics instrumentation ---            PROTON PRECESSION - GEOMETRICS G-801
Additional forms of magnetics data ---   ANALOG RECORDS
General rate of magnetics in file ---    4.9 minutes
General collection rate of magnetics --- 4 seconds
Magnetic sensor tow distance ---         213 meters
Magnetic sensor depth ---                (unspecified)
Two sensor horizontal separation ---     (unspecified)
Residual magnetics reference field ---   IGRF-75
Method of applying residual field ---    LINEAR INTERP. BETWEEN NAV POINTS

Gravity instrumentation ---            L&R S-53
Additional forms of gravity data ---   ANALOG RECORDS
General rate of gravity in file ---    (unspecified)
General collection rate of gravity --- 15 seconds
Theoretical gravity formula ---        International 1930
Reference system ---                   System IGSN 71
Corrections applied ---                DRIFT CORRECTIONS
Starting land tie ---                  968871.1   PORT NGELES, WA.
Ending land tie   ---                  (unspecified)

Seismic instrumentation --- UNIBOOM, 24 CHANNEL
Formats of seismic data --- (unspecified)

Snavely, P.D., Jr., Wagner, H.C., Tompkins, D.H., and Tiffin, D.L., 1981, 
Preliminary geologic
interpretation of a seismic reflection profile across the Queen Charlotte Island fault system,
Dixon Entrance, Canada-United States: U.S. Geological Survey Open-File Report 
81-0299, 13 p.


Snavely, P.D., Jr., and Wagner, H.C., 1983, Geophysical data collected across 
the continental
margin between Washington and Oregon along line 16, USGS R/V S. P. Lee cruise 
11-80: U.S.
Geological Survey Open-File Report 83-0020, 1 sheet.


McClellan, P.H., and Snavely, P.D., Jr., 1988, Multichannel seismic-reflection 
profiles
collected in 1980 off of the Washington and northern Oregon coast: U.S. 
Geological Survey
Open-File Report 88-0205, 3 p., 1 sheet.