The Tongue of the Ocean branch of Great Bahama Canyon heads in deep water off Fresh Creek, Andros Island. To the south the trough is U-shaped and the site of active sedimentation; to the north it is V-shaped and apparently nondepositional. These sedimentary regimes are the result of
an abrupt change in axial slope, which affects the dynamics of turbidity current flow. The break in slope is localized by coalescence of slump deposits from the canyon walls in the narrowest portion of the Tongue of the Ocean, east of Fresh Creek.
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