Giant sediment drifts on the continental rise west of the Antarctic Peninsula

Multichannel seismic reflection profiles from the continental rise west of the Antarctic Peninsula between 63° and 69°S show the growth of eight very large mound-shaped sedimentary bodies. MCS profiles and long-range side-scan sonar (GLORIA) images show the sea floor between mounds is traversed by channels originating in a dendritic pattern near the base of the continental slope. The mounds are interpreted as sediment drifts, constructed mainly from the fine-grained components of turbidity currents originating on the continental slope, entrained in a nepheloid layer within the ambient southwesterly bottom currents and redeposited downcurrent.

Details

Publication status:
Published
Author(s):
Authors: Rebesco, Michele, Larter, Robert D. ORCID, Camerlenghi, Angelo, Barker, Peter F.

On this site: Robert Larter
Date:
1 June, 1996
Journal/Source:
Geo-Marine Letters / 16
Page(s):
65-75
Digital Object Identifier (DOI):
https://doi.org/10.1007/BF02202600