USGS CMG K-4-73-SC Metadata

To obtain detailed geophysical data between Cape San Martin and Pt. Sal
that would aid in identifying lithologic units and interpreting offshore
geologic structure for the evaluation of potential hazards, if any, to large
coastal installations and attendant offshore pipelines. Potential hazards may
include such features as faults that cut the seafloor, areas of landsliding, and
submarine slumping.

Approximately 750 mi (1200 km) of deep penetration single channel
seismic records were obtained using a 120,000 joule sub-bottom acoustic
reflection profiling system with a 3-second sweep; hight resolution records were
run simultaneously using an electrical-mechanical system with a 1/4 second
sweep. Bathymetric data were obtained with a precision depth recorder, magnetic
data were gathered with a ship-towed magnetometer, and side-scan sonar records
wers taken locally. The track lines extended 6 to 10 mi from shore and were
spaced one nautical mile apart throughout most of the area. Because of
structural complications offshore from the Diablo Canyon site, another 80 mi
(130 km) of geophysical line was run in that area December 1973, by Geomarine
Services under contract to the Pacific Gas and Electric Company.

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

MCG Data Collection ID ---         K473SC
Institution Data Collection ID --- K473SC
NGDC ID ---                        06210005
Funding ---                        (unspecified)
Project, Cruise & Leg ---          KEL473SC Steve Wolfe Holly Wagner
Study region ---                   +36.00000,+32.00000,-122.00000,-117.00000
Chief Scientist(s) ---             Gary Greene
Name of vessel ---                 Kelez (surface ship)
Date field data collection started --- 11/08/73     (unspecified)
Date field data collection ended ---   12/10/73     (unspecified)
Parameters surveyed ---
   Bathymetry:                     (unspecified)
   Magnetics:                      surveyed, contained in data file
   Gravity:                        surveyed, contained in data file
   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 ---     04/09/87
Contributing institution ---       USGS Branch of Pacific Marine Geology
Country ---                        United States

Navigation instrumentation ---     (unspecified)
Position determination method ---  (unspecified)

Bathymetry instrumentation ---            (unspecified)
Additional forms of bathymetric data ---  (unspecified)
General rate of bathymetry in file ---    (unspecified)
General collection rate of bathymetry --- (unspecified)
Assumed sound velocity ---                (unspecified)
Bathymetric datum code ---                No correction applied (sea level)
Bathmetry interpolation scheme ---        (unspecified)

Magnetics instrumentation ---            (unspecified)
Additional forms of magnetics data ---   (unspecified)
General rate of magnetics in file ---    2.0 minutes
General collection rate of magnetics --- (unspecified)
Magnetic sensor tow distance ---         (unspecified)
Magnetic sensor depth ---                (unspecified)
Two sensor horizontal separation ---     (unspecified)
Residual magnetics reference field ---   (unspecified)
Method of applying residual field ---    (unspecified)

Gravity instrumentation ---            (unspecified)
Additional forms of gravity data ---   (unspecified)
General rate of gravity in file ---    2.0 minutes
General collection rate of gravity --- (unspecified)
Theoretical gravity formula ---        (unspecified)
Reference system ---                   (unspecified)
Corrections applied ---                (unspecified)
Starting land tie ---                  (unspecified)
Ending land tie   ---                  (unspecified)

Seismic instrumentation --- (unspecified)
Formats of seismic data --- (unspecified)

Vedder, J.G., Beyer, L.A., Junger, Arne, Moore, G.W., Roberts, A.E., Taylor, 
J.C.,
and Wagner, H.C., 1974, Preliminary report on the geology of the continental 
borderland
of Southern California: U.S. Geological Survey Miscellaneous Field Studies Map, 
MF-0624,
p. 34. 


Arnal, R.E., and Vedder, J.G., 1976, Changes in Miocene paleobathymetry of 
California
continental borderland north of 32 degrees: American Association of Petroleum 
Geologists
Bulletin, v. 60, no. 4, American Association of Petroleum Geologists-Society For 
Sedimentary
Geology annual meeting, p. 646.


Arnal, R.E., and Vedder, J.G., 1976, Late Miocene paleobathymetry of California
continental borderland north of 32 degrees: American Association of Petroleum
Geologists Bulletin, v. 60, no. 12, American Association of Petroleum 
Geologists-
Society For Sedimentary Geology-SEG Pacific sections meeting, p. 2174.


Vedder, J.G., Taylor, J.C., Arnal, R.E., and Bukry, D., 1976, Map showing 
location of
selected pre-Quaternary rock samples from the California continental borderland: U.S.
Geological Survey Miscellaneous Field Studies Map MF-737. 


Vedder, J.G., and Howell, D.G., 1979, Geologic framework of the southern 
California borderland: U.S.
Geological Survey Professional Paper 1150, p. 146-147.


Vedder, J.G., Crouch, J.K., Scott, E.W., Greene, H.G., Cranmer, D., Ibrahim, M., 
Tudor, R.B., and
Vinning, G., 1980, A summary report of the regional geology, petroleum 
potential, environmental
geology, and operational considerations in the area of proposed lease sale no. 
68, offshore southern
California: U.S. Geological Survey Open-File Report 80-198, 64 p.


Campbell, R.H., Wolf, S.C., Hunter, R.E., Wagner, H.C., Junger, Arne, and 
Vedder, J.G.,
1975, Geologic map and sections, Santa Barbara Channel region, California: U.S. 
Geological
Survey Open-File Report 75-0123, 1 sheet.


Vedder, J.G., 1990, Maps of California continental borderland showing 
compositions and ages
of bottom samples acquired between 1968 and 1979: U.S. Geological Survey 
Miscellaneous
Field Studies Map MF-2122, 3 sheets.