Geology and biology of Oceanographer submarine canyon.
Marine Geology
By: P. C. Valentine, J. R. Uzmann, and R.A. Cooper
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Abstract
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
Suggested Citation
Valentine, P.C., Uzmann, J., and Cooper, R., 1980, Geology and biology of Oceanographer submarine canyon.: Marine Geology, v. 38, no. 4, p. 283-312, https://doi.org/10.1016/0025-3227(80)90004-3.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geology and biology of Oceanographer submarine canyon. |
| Series title | Marine Geology |
| DOI | 10.1016/0025-3227(80)90004-3 |
| Volume | 38 |
| Issue | 4 |
| Year Published | 1980 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Marine Geology |
| First page | 283 |
| Last page | 312 |