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Geology and biology of Oceanographer submarine canyon.

January 1, 1980

Santonian beds more than 100 m thick are the oldest rocks collected from the canyon. Quaternary silty clay veneers the canyon walls in many places and is commonly burrowed by benthic organisms that cause extensive erosion of the canyon walls, especially in the depth zone (100-1300 m) inhabited by the crabs Geryon and Cancer. Bioerosion is minimal on high, near-vertical cliffs of sedimentary rock, in areas of continual sediment movement, and where the sea floor is paved by gravel. A thin layer of rippled, unconsolidated silt and sand is commonly present on the canyon walls and in the axis. Shelf sediments are transported from Georges Bank over the E rim and in the Canyon by the SW drift and storm currents; tidal currents and internal waves move the sediment downcanyon along the walls and axis.- from Authors

Citation Information

Publication Year 1980
Title Geology and biology of Oceanographer submarine canyon.
DOI 10.1016/0025-3227(80)90004-3
Authors P. C. Valentine, J. R. Uzmann, R.A. Cooper
Publication Type Article
Publication Subtype Journal Article
Series Title Marine Geology
Index ID 70012185
Record Source USGS Publications Warehouse