1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System

Field Activity A103SC

Identifier A103SC
Alternate names A-1-03-SC
Purpose 1) Mechanics and timing of submarine sediment failures on part of the mainland slope of the Santa Barbara Channel (piston coring). 2) Neotectonics and timing of recent fault movement in the inner California Continental Borderland from Anacapa Island to San Diego, CA (piston coring and gravity coring). 3) Stratigraphic and sedimentologic characterization of offshore facies that comprise part of the onshore coastal aquifer systems contaminated by salt water intrusion (vibracoring). 4) Mass balance of contaminants (chlorinated hydrocarbons and trace metals) associated with sediment deposited on the Los Angeles margin (Pt Dume to Huntington Beach, CA) (box coring).
Description United States Geological Survey, Menlo Park, California. Chief Scientists: Brian Edwards, Homa Lee. Sampling data (3dot5khz, subbottomprofiler, boxcore, vibratingcore, pistoncore, gravitycore, tripcore) of field activity A-1-03-SC in Southern California: Pt. Conception to Mexican border, from shore outto 50 nautical miles. from 07/18/2003 to 07/31/2003
Location from shore out to 50 nautical miles.
Summary The M/V Auriga left the port of Redwood City at 0800 on July 18, 2003, and returned to the Port of Redwood City at XXXX on July 31, 2003. Transit to the operation area in the Santa Barbara Channel took approximately 28 hours. The return transit from Santa Monica Bay took approximately 38 hours. During our 11 operational days we collected 29 piston cores, 25 gravity cores, 43 box cores, and 19 vibracores. We also collected 3 hours of CHIRP high-resolution seismic-reflection data in support of the vibracoring operations. A piston core collected at site Hein1, a station positioned to sample for seafloor discharges of methylmercury, recovered an ice sample of gas hydrate. To our knowledge, this is the first discovery of gas hydrate south of the Mendocino Triple Junction.
Info derived Strat/Sed (SS), Chlorinated Hydrocarbon (CH), Trace Metals (TM), 210Pb, Texture, Forams, Grainsize
Comments Leave Redwood City, CA Arrive Redwood City, CA Planning to collect: Piston Core Gravity Core Box Core Vibracore Grabs Planned date -- July, 2003 Staff information imported from InfoBank Brian Edwards (Chief Scientist, USGS, Menlo Park, CA) - Co Homa Lee (Chief Scientist, USGS, Menlo Park, CA) - Co Bill Normark (USGS, Menlo Park, CA) - Scientist Lori Hibbeler (USGS, Menlo Park, CA) - Information Specialist Jamie Conrad (USGS, Menlo Park, CA) - Navigator Pete Dartnell (USGS, Menlo Park, CA) - Scientist Jon Warrick (USGS, Menlo Park, CA) - Scientist Eric Grossman (USGS, Santa Cruz, CA) - Scientist Cathy Frazee (USGS, Menlo Park, CA) - Core Curator Brad Carkin (USGS, Menlo Park, CA) - Logging Technician Simon Barber (USGS, Menlo Park, CA) - Scientist Claudia Venherm (Skidaway Institute of Oceanography, Savannah, GA) - Scientist Alyson Cotton (Skidaway Institute of Oceanography, Savannah, GA) - Scientist Walt Olsen (USGS, Redwood City, CA) - Marine Technician Kevin O'Toole (USGS, Redwood City, CA) - Marine Technician Hal Williams (USGS, Redwood City, CA) - Marine Technician Mike Boyle (USGS, Redwood City, CA) - Electronic Technician Ted Blinkers (R/V Auriga Crew, Seattle, WA) - Captain Donna White (R/V Auriga Crew, Seattle, WA) - Second Mate William White (R/V Auriga Crew, Seattle, WA) - Third Mate Richard Kelly (R/V Auriga Crew, Seattle, WA) - Engineer Thomas Lyon (R/V Auriga Crew, Seattle, WA) - Engineer John Kelly (hand, R/V Auriga Crew, Seattle, WA) - Deck Levanto Schachter (UCLA IOE) - UCLA Mooring Non USGS data manager = Lori Hibbeler
Platform
Auriga
Itinerary
Start Redwood City, CA 2003-07-18
End Redwood City, CA 2003-07-31
Bounds
West -122.723
East -117.34878
North 37.83387
South 33.03002
Activity Sampling

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Homa J LeeBrian D Edwards
Crew members
Peter Dartnell
Scientist, Staff
James E Conrad
Scientist, Staff
Jonathan Warrick
Scientist, Staff
Michael E Boyle
Scientist, Staff
Bradley A Carkin
Scientist, Staff
Cathy S Frazee
Scientist, Staff
Eric Grossman
Scientist, Staff
Barber, Simon
Scientist, Staff
Cotton, Alyson
Scientist, Staff
Normark, Bill
Scientist, Staff
Olson, Walt
Scientist, Staff
O'Toole, Kevin
Scientist, Staff
Williams, Hal
Scientist, Staff
Affiliate staff Lori Hibbeler (USGS, Menlo Park, CA) - Information Specialist,Jon Warrick (USGS, Menlo Park, CA) - Scientist,Claudia Venherm (Skidaway Institute of Oceanography, Savannah, GA) - Scientist,Ted Blinkers (R/V Auriga Crew, Seattle, WA) - Captain,Donna White (R/V Auriga Crew, Seattle, WA) - Second Mate,William White (R/V Auriga Crew, Seattle, WA) - Third Mate,Richard Kelly (R/V Auriga Crew, Seattle, WA) - Engineer,Thomas Lyon (R/V Auriga Crew, Seattle, WA) - Engineer,John Kelly (hand, R/V Auriga Crew, Seattle, WA) - Deck,Levanto Schachter (UCLA IOE) - UCLA Mooring

Data types and categories

Data category: Sampling, Seismics
Data type: Biology, Geology, Sub Bottom Profiler

Equipment used

Equipment Usage description Data types Datasets
subbottomprofiler Sub Bottom Profiler (no data reported)
boxcore Biology, Geology 2
vibratingcore Geology 1
pistoncore Geology 1
gravitycore Geology 1
3.5khz Sub Bottom Profiler (no data reported)
tripcore Geology 1

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
all sample analog holdings boxcore InfoBank analog holdings Brian D Edwards
boxcore boxcore on bottom location Carol A Reiss
vibratingcore vibratingcore on bottom locations Carol A Reiss
pistoncore pistoncore on bottom locations Carol A Reiss
gravitycore gravitycore on bottom locations Carol A Reiss
tripcore tripcore on bottom locations Carol A Reiss

Publications

Samples collected during this field activity