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Seafloor geology and benthic habitats, San Pedro Shelf, southern California

October 10, 2012

Seafloor samples, videography, still photography, and real-time descriptions of geologic and biologic constituents at or near the seafloor of the San Pedro Shelf, southern California, advance the study of natural and man-made processes on this coastal area off the metropolitan Los Angeles area. Multibeam echo-sounder data collected by the U.S. Geological Survey in 1998 and 1999 guided sampling and camera work in 2004 resulting in a new seafloor character map that shows possible benthic habitats in much higher resolution (4- and 16-m pixels) than previously available. The seafloor is characterized by primarily muddy sand and sand with outcrops of Miocene and Pliocene bedrock along the Palos Verdes Fault Zone. Observed benthic populations indicate low abiotic complexity, low biotic complexity, and low biotic coverage. The data are provided for use in geographic information systems (GIS).

Citation Information

Publication Year 2012
Title Seafloor geology and benthic habitats, San Pedro Shelf, southern California
DOI 10.3133/ds552
Authors Florence L. Wong, Peter Dartnell, Brian D. Edwards, Eleyne L. Phillips
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Data Series
Series Number 552
Index ID ds552
Record Source USGS Publications Warehouse
USGS Organization Pacific Coastal and Marine Science Center