Foraminiferal Response to Downslope Sand Transport Processes and Seafloor Morphology
Offshore
Schroder-Adams, Claudia J.1,
Ron Boyd2, Kevin Ruming2, Marianne L. Sandstrom3
(1) Carleton University, Ottawa, ON (2) University of Newcastle, Callaghan,
Australia (3) University of Adelaide, Adelaide, Australia
The extensive longshore
sediment transport system along the SE margin of
Within the same depth range, assemblages
within gullies significantly vary from those outside gullies. Furthermore,
subtle topographic features such as ridges and levees that allow protection
from the main erosional sand transport routes support
fragile, erect suspension feeders. Assemblages in gullies fed from the shelf
edge have a different composition than those without connection to the shelf. Foraminiferal distribution patterns would have received an
entirely different biofacies interpretation without
linking them to ocean floor processes as revealed through multibeam
sonar imagery.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California