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Palos Verdes

Camera Survey of the Palos Verdes Shelf and Slope


Map showing camera tracklines

During May 1992, a seafloor camera-sled survey was conducted on parts of the Palos Verdes continental margin to image the surficial character of effluent-affected sediment deposited on the seafloor near the White's Point outfall. A black-and-white silicon-intensified target (SIT) video camera, two Hi-8 mm color video camcorders, and a 35 mm film camera were used to conduct this survey.

The survey consisted of seven camera-sled deployments imaging about 40 trackline--kilometers of seafloor. The lines crossed the middle and outer shelf as well as part of the slope and adjacent San Pedro Basin floor. Surveys were limited to water depths greater than about 40 meters.

The images show:

  • evidence of pervasive disruption of the bed by biogenic activity throughout the study area
  • physical reworking in water depths less than 51 meters
  • mass-wasting processes on the mainland slope

For additional information, contact Homa Lee

 



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URL: http://walrus.wr.usgs.gov/pv/pvcamera.html
maintained by Laura Zink Torresan
last modified 19 September 2005 (lzt)