To determine sediment thickness and verify areas surveyed with multibeam swath bathymetry. Document surface sediment texture.
Description
Chief Scientists: John Chin, Paul Carlson. Sampling and Seismic data (Geopulse, Kleinsidescan, VanVeengrab, sparker) of field activity J-1-98-SF in Central San Francisco Bay, CA from 01/07/1998 to 01/23/1998
Location
CA
Comments
February 9, 1998 S.F. BAY CRUISE John Chin and Paul Carlson recently completed a cruise (J-1-98-SF) in central San Francisco Bay during the January 8-23 period, using the RV David Johnston. The focus of the fieldwork was to document the nature and thickness of Quaternary sediment. We used the minisparker and ORE GeoPulse systems to obtain shallow subbottom profiles. A limited amount of Klein sidescan sonar data was also collected. We will be mapping the new subsurface and surficial data and using it in conjunction with the multibeam data collected in 1997 to investigate the surficial and shallow subsurface deposits of central San Francisco Bay. A secondary objective was to gather surface grab samples to obtain information on the texture and distribution of surface sediments. We collected 56 samples with a small Van Veen sampler. This information will also be utilized by the San Francisco Bay project for mapping of surficial sediment distribution and sediment transport studies (Geist, Xu, and Rubin). Chin and Carlson were ably assisted by Florence Wong, Ellen Tobey, and Justin Friesner. Mike Boyle and Larry Kooker did a great job of keeping electronic and navigation gear running. -- John Chin
Staff information imported from InfoBank
John Chin (USGS Western Region) - Chief Scientist
Paul Carlson (USGS Western Region) - Chief Scientist
Mike Boyle (USGS Western Region) - Electronics Tech
Larry Kooker (USGS Western Region) - Electronics Tech
