Earth Science in the Urban Ocean: The Southern California Continental Borderland

Sediment accumulation on the Southern California Bight continental margin during the twentieth century
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Published:January 01, 2009
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CiteCitation
Clark R. Alexander, Homa J. Lee, 2009. "Sediment accumulation on the Southern California Bight continental margin during the twentieth century", Earth Science in the Urban Ocean: The Southern California Continental Borderland, Homa J. Lee, William R. Normark
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Sediment discharged into the portion of the Southern California Bight extending from Santa Barbara to Dana Point enters a complex system of semi-isolated coastal cells, narrow continental shelves, submarine canyons, and offshore basins. On both the Santa Monica and San Pedro margins, 210Pb accumulation rates decrease in an offshore direction (from ~0.5 g cm−2yr−1 to 0.02 g cm−2yr−1), in concert with a fining in sediment grain size (from 4.5φ to 8.5φ), suggesting that offshore transport of wave-resuspended material occurs as relatively dilute nepheloid layers and that hemiplegic sedimentation dominates the supply of...
- bottom features
- California
- Cenozoic
- coastal sedimentation
- continental borderland
- continental margin sedimentation
- continental shelf
- East Pacific
- grain size
- hemipelagic environment
- Holocene
- isotopes
- lead
- Los Angeles County California
- marine environment
- marine sediments
- marine transport
- metals
- modern
- North Pacific
- Northeast Pacific
- ocean waves
- Pacific Ocean
- Palos Verdes Peninsula
- Pb-210
- Quaternary
- radioactive isotopes
- San Pedro Basin
- Santa Monica Basin
- sediment transport
- sedimentation
- sedimentation rates
- sediments
- Southern California
- United States
- upper Holocene
- Southern California Bight