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

Wong, Florence L.; Dartnell, Peter; Edwards, Brian D.; Phillips, Eleyne L.

Abstract:

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).

Genre:

USGS Numbered Series

ProdID:

70040243

Citation Author:

Wong, Florence L.; Dartnell, Peter; Edwards, Brian D.; Phillips, Eleyne L.

Citation Contributing Office:

Pacific Coastal and Marine Science Center

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Citation Language:

English

Citation Larger Work Title:

Citation LatN:

33.5167

Citation LatS:

33.7500

Citation LonE:

-117.9167

Citation LonW:

-118.3667

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Citation Phsyical Description:

Report: iv, 29 p.; Appendixes A-F

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Citation Public Comments:

Prepared in cooperation with the Sanitation Districts of Los Angeles County and the Orange County Sanitation District

Citation Publisher:

U.S. Geological Survey

Citation Series:

Data Series

Citation Series Code:

Citation Series Number:

552

Citation Search Results Text:

Seafloor geology and benthic habitats, San Pedro Shelf, southern California; 2012; DS; 552; Wong, Florence L.; Dartnell, Peter; Edwards, Brian D.; Phillips, Eleyne L.

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Citation Year:

2012

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citation/reference

Text:

Seafloor geology and benthic habitats, San Pedro Shelf, southern California; 2012; DS; 552; Wong, Florence L.; Dartnell, Peter; Edwards, Brian D.; Phillips, Eleyne L.