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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 1990-018-FA

Other ID: F7-90-NC

Status: Completed

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

Funding Program(s):

Principal Investigator(s): William Schwab

Affiliate Investigator(s): Herman Karl and Dave Drake, PMG

Information Specialist(s):

Data Type(s): Sonar: Sidescan, Sonar: Single Beam, Seismics: Sub Bottom Profiler, Location-Elevation: Navigation

Scientific Purpose/Goals: Slope stability survey.


Start Port/Location: Redwood City, CA

End Port/Location: Redwood City, CA

Start Date: 1990-07-19

End Date: 1990-08-03

Equipment Used: 3.5 kHz, GPS (wh), SeaMARC sidescan sonar system, 10 kHz Bathymetry, 4.5 kHz, Loran-C, Del Norte, transponder net

Information to be Derived: Sea floor map;

Summary of Activity and Data Gathered:

Staff: William Danforth, Barry Irwin, Thomas O'Brien, William Schwab

Affiliate Staff:
Ian Rouse - IOS
Electrical Engineer; John Chin - PMG
Geologist; Doug Musser - PMG
Navigator; Kaye Kinoshita - PMG
Navigator; Tom Crook - WHOI/DSL
Navigator; Leda Beth Pickthorn - PMG
Navigator; Warren Scherfius - PMG
Photographer; Steve Wessels - PMG
Photographer; Larry Cooker - PMG
Electronics; Herman Karl - PMG
Chief Scientist; Dave Drake - PMG
Chief Scientist; Kevin Redman - IDSS
Unspecified Investigator; Alan Ota - EPA
Unspecified Investigator; Kirk O'Donnell - IDSS
Unspecified Investigator; Tom Dettweiler - Meridan
Unspecified Investigator; Chester Alysta - IDSS
Unspecified Investigator; Dave Wyatt - Meridan
Unspecified Investigator; Ski Laniewicz - IDSS
Unspecified Investigator; Art Wright - IDSS
Unspecified Investigator; John Cannan - J. Marr
Ship's Captain; Matthew Gilbey - J. Marr
Chief Engineer; Albert Fuller - J. Marr
Chief Mate

Notes: Original Center People field contained: Bill Schwab - Co-Chief Scientist, Bill Danforth - Geologist, Barry Irwin - Navigator, Tom O'Brien - Geophysicist.


Farallon Escarpment, California, United States, North America, North Pacific;

North: 37.75 South: 37.15 West: -123.44 East: -122.74


photo of Farnella



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
SeaMARC sidescan sonar system --- Sidescan
10 kHz Bathymetry --- Single Beam
NGDC MGD77 data ( )
3.5 kHz --- Sub Bottom Profiler
4.5 kHz --- Sub Bottom Profiler
GPS (wh) --- Navigation
Loran-C --- Navigation
1990-018-FA-LN-001 ( Navigation data)
Del Norte, transponder net --- Navigation

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