USGS - science for a changing world

USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2019-642-FA

AKA: none

Other ID: CalDIG II

Status: Completed

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

Funding Program(s): Marine Geomorphology, Evolution, and Habitats (ZP00FE6)

Principal Investigator(s): Guy Cochrane

Affiliate Investigator(s): Charles Paull (MBARI)

Information Specialist(s): Guy Cochrane

Data Type(s): Seismics: Sub Bottom Profiler, Location-Elevation: Navigation, Sampling: Geology, Imagery: Video

Scientific Purpose/Goals: Benthic habitat, structure, and sedimentary processes in support of offshore energy development.

Vehicle(s):

Start Port/Location: San Diego, CA

End Port/Location: San Francisco, CA

Start Date: 2019-09-09

End Date: 2019-09-27

Equipment Used: 3.5khz, pistoncore, GPS, Remotely Operated Vehicle

Information to be Derived: Surficial geology, benthic habitat, grain size, sediment ages, pore water chemistry

Summary of Activity and Data Gathered: Piston and Gravity Coring. Coring was conducted for the most part during daylight hours at the request of the Ship’s Captain. The piston coring rail system was arranged on the fantail at a slight diagonal to allow a line and capstan to be rigged on the starboard deck to pull the corer along rails. Cores were collected on 12 of the 13 days at sea. A total of 41 cores were collected. The ROV dives were impacted more significantly by weather conditions that the coring operations. Objectives had to be achieved by modifying the original site plan. Of the original plan ten of the original sites were surveyed three of which were considered priority 1 sites out of 23 total dives. Video data are archived with MBARI.

Staff: Maureen Walton, Daniel Powers, Peter Dal Ferro

Affiliate Staff:

Notes: Numerous MBARI staff for coring and ROV.

Location:

South Central California

Boundaries
North: 35.84 South: 34.51 West: -122.02 East: -120.91

Platform(s):

photo of Bold Horizon
Bold Horizon

Publications

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
3.5khz --- Sub Bottom Profiler
GPS --- Navigation
pistoncore --- Geology
Remotely Operated Vehicle --- Photo
Video
Biology
Chemistry
Geology

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Questions or Comments? Contact CMGDS Team
https://cmgds.marine.usgs.gov