USGS CMG M-1-74-NP Metadata

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

MCG Data Collection ID ---         M174NP
Institution Data Collection ID --- CCTW01MV
NGDC ID ---                        15020025
Funding ---                        (unspecified)
Project, Cruise & Leg ---          COCOTOW LEG 1
Study region ---                   +33.00000, +8.00000,-118.00000,-100.00000
Chief Scientist(s) ---             MUDIE J., NORMARK W.
Name of vessel ---                 R/V MELVILLE (surface ship)
Date field data collection started --- 08/26/74     SAN DIEGO
Date field data collection ended ---   09/20/74     ACAPULCO
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:      not surveyed
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 ---     10/29/79
Contributing institution ---       SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country ---                        USA

Navigation instrumentation ---     SATNAV,AUTOLOG GYRO + EMLOG
Position determination method ---  LINEAR INTERP.BETWEEN ADJACENT FIXES

Bathymetry instrumentation ---            3.5-12KHZ/GIFFT RECORDERS/WIDE BEAM
Additional forms of bathymetric data ---  ANAL.RECORDS,CARDS,35MMFILM(3.5KHZ)
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
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.POINTS WITHIN ONE DEGREE 
SQUARE

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

Normark, W.R., 1976, Delineation of the main extrusion zone of the East Pacific 
Rise at
lat 21 degrees N: Boulder, CO, Geology, v. 4, no. 11, p. 681-685.


Crane, K., and Normark, W.R., 1975, Ridge crest structure vs. hydrothermal 
activity (East
Pacific Rise 21 degrees N): Eos, Transactions, American Geophysical Union, v. 56, no. 12,
Fall annual meeting, p. 1064-1065. 


Normark, W.R., 1975, Photographic study of the zone of crustal accretion of the 
East
Pacific Rise crest at the mouth of the Gulf of California: Geological Society of 
America
Abstracts with Programs, v. 7, no. 3, p. 358.


Crane, K., and Normark, W.R., 1977, Hydrothermal activity and crestal structure
of the East Pacific Rise at 21 degrees N: Journal of Geophysical Research, v. 
82, no. 33,
p. 5336-5348.


Normark, W.R., Alpha, T.R., Hess, G.R., Lichtman, G.S., and Gutmacher, C.E., 
1978, Map
showing the crest of the East Pacific Rise near the mouth of the Gulf of 
California:
U.S. Geological Survey Open-File Report 78-350, 1 sheet.


Normark, W.R., and Hess, G.R., 1978, Deep-tow studies of the East Pacific Rise, 
Pacific
Ocean basin: U.S. Geological Survey Professional Paper 1100, p. 158.


Normark, W.R., and Hess, G.R., 1979, Deep-tow studies of the East Pacific Rise 
off
Mexico: U.S. Geological Survey Professional Paper 1150, p. 157.


Lichtman, G.S., Normark, W.R., Spiess, F.N., and Hess, G.R., 1979, Detailed 
morphology and
photogeology of the East Pacific Rise near lat. 21 degrees N: Geological Society 
of America
Abstracts with Programs, v. 11, no. 7, p. 466. 


Hess, G.R., Lawhead, B., Lichtman, G.S., MacDonald, K.C., Miller, S.M., Normark, 
W.R., and
Spiess, F.N., 1980, Fine-scale bathymetry used for submersible studies of the East Pacific
Rise: U.S. Geological Survey Open-File Report 80-542, 2 sheets.


Normark, William R., 1980, Definition of the plate boundary along the East 
Pacific Rise off
Mexico: Marine Geodesy, v. 4, no. 1, p. 29-41. 


Normark, W.R., and Bischoff, J.L., 1980, Hydrothermal activity and massive 
sulfides on
the East Pacific Rise: U.S. Geological Survey Professional Paper 1175, p. 
163.


Ballard, Robert D., Francheteau, Jean, Juteau, Tierre, Rangan, Claude, and 
Normark, W.R.,
1981, East Pacific Rise at 21 degrees N; the volcanic, tectonic, and 
hydrothermal processes
of the central axis: Earth and Planetary Science Letters, v. 55, no. 1, p. 
1-10.


Wilde, P., Chase, T.E., Holmes, M.L., Normark, W.R., and Thomas, J.A., 1977, 
Oceanographic
data off Washington, 46 degrees to 49 degrees north including the Nitinat deep 
sea fan:
Lawrence Berkeley Laboratory, Energy and Environment Division, no. 223, 1 
sheet.


Normark, William R., 1990, Return to Ranger submarine slide, Baja California, 
Mexico: Geo-Marine
Letters, v. 10, no. 2, p. 81-91.