Summary for Field Activity Number 88020

Alternate Leg ID: F-13-88-NC

Area of Operations: Point Sal, San Luis Obispo, California, United States, North America, North Pacific

Dates: December 5, 1988 to December 13, 1988

Chief scientist: Brad Butman
   Dave Cacchione and Dave Drake, USGS-Menlo Park

Objectives: This cruise was conducted as a part of the sediment transport component of the MMS California OCS Phase II Monitoring Program. Data were successfully collected during the spring/summer of 1987. This cruise was designed to obtain data during the winter season. The specific objectives were: 1. Conduct a sidescan survey at project sites R8, PJ1, and R9; 2. Deploy 2 surface guard buoys at each site (R8, PJ1, and R9); 3. Deploy 3 subsurface current meter moorings at R8, PJ1, and R9; 4. Deploy 2 GEOPROBE tripods at R8 and PJ1; 5. Collect box cores for detailed sediment analyses; and 6. Collect hydrographic and suspended matter samples.

Type of Activity: Sampling
Mooring work
Seismic profiling

Information to be derived: Time series data
Samples and Chemical Analysis
Grain size analysis
Suspended Sediment Concentrations
Sea Floor Map

Summary: Moorings deployed: 6 (#327, 328, 329, 330, 331, and 332, recovered FA 89004 FARNELLA Feb. 21-28, 1989). CTD stations: 13; Sidescan sonar: 48 km; Box cores: 6 (processed shipboard by WHOI for E. Crycelius, Battelle); Gravity core: 1; Water samples: 33.

USGS Project Number:

Contact: David Cacchione, David Drake (dcacchione@usgs.gov)