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U.S. Geological Survey
Open-File Report 03-110
Cruise Report for A1-02-SC
Southern California CABRILLO project, Earthquake Hazards Task
By William R. Normark, Michael A. Fisher, Christina
E. Gutmacher, Ray Sliter, Lori Hibbeler, Beth Feingold, and Jane A. Reid
Introduction
A two-week marine geophysical survey obtained sidescan-sonar images and
multiple sets of high-resolution seismic-reflection profiles in the southern
California offshore area between Point Arguello and Point Dume. The data
were obtained to support two project activities of the United States Geological
Survey (USGS) Coastal and Marine Geology (CMG) Program: (1) the evaluation
of the geologic hazards posed by earthquake faults and landslides in the
offshore areas of Santa Barbara Channel and western Santa Monica Basin
and (2) determine the location of active hydrocarbon seeps in the vicinity
of Point Conception as part of a collaborative study with the Minerals
Management Service (MMS). The 2002 cruise, A1-02- SC, is the fourth major
data-collection effort in support of the first objective (Normark et al.,
1999a, b; Gutmacher et al., 2000). A cruise to obtain sediment cores to
constrain the timing of deformation interpreted from the geophysical records
is planned for the summer of 2003.
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URL of this page: http://geopubs.wr.usgs.gov/open-file/of03-110/
Maintained by: Carolyn Donlin
Created: 9-8-03
Last modified: 9-16-03 (cad)