USGS - science for a changing world

USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2018-638-FA

AKA: none

Other ID: none

Status: Completed

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

Funding Program(s): Other (Other)

Principal Investigator(s): James Conrad, Thomas Lorenson, Jonathan Warrick

Affiliate Investigator(s): Drake Singelton SDSU Jillian Maloney SDSU Jennifer Miller BOEM

Information Specialist(s): James Conrad

Data Type(s): Location-Elevation: Navigation, Sampling: Geology, Seismics: Sub Bottom Profiler, Sonar: Sound Velocity

Scientific Purpose/Goals: Geophysical investigations and coring of shallow sediment cover on the shelf in support of sand resource quantification

Vehicle(s): MarFac; Ford F350 pickup/stake truck; 6 pass; G82-0317H, Grand Caravan G41-1761S

Start Port/Location: San Diego, CA

End Port/Location: San Diego, CA

Start Date: 2018-05-21

End Date: 2018-05-26

Equipment Used: Vibracore, navigation, 512 chirp-source, 512 chirp, Sound Velocity - SVP-1, Other

Information to be Derived: Sand distribution and thickness on shelf; grain size

Summary of Activity and Data Gathered: vibracore sample analysis submitted to FAD by Mike Torresan 6/18/2018

Staff: James Conrad, Jackson Currie, Timothy Elfers, Thomas Lorenson, Daniel Powers, Ray Sliter

Affiliate Staff:

Notes: Funding OFA via BOEM IAA M16PG00030

Entries for this field activity are based on entries from Field Activity 2017-686-FA

Platfom: R/V Bold Horizon


Shelf NW of Oceanside, CA

North: 33.36725 South: 32.5307 West: -117.63645 East: -117.1887





Sliter, R.W., Conrad, J.E., Lorenson, T.D., Papesh, A.G., and Warrick, J.A., 2021, Geophysical and core sample data collected offshore Oceanside to San Diego, southern California, during field activity 2018-638-FA from 2018-05-21 to 2018-05-26: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Vibracore --- Geology
navigation --- Navigation
512 chirp-source --- Sub Bottom Profiler
512 chirp --- Sub Bottom Profiler
Sound Velocity - SVP-1 --- Sound Velocity
Other --- --- ---

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Questions or Comments? Contact CMGDS Team