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Basin Floor Fan (Geoform Type)

Component: Geoform

Unique Identifier: 91

Geoform Origin Geologic
Geoform Fan
Geoform Type Basin Floor Fan

Definition Deposition of submarine fans on the lower slope or basin floor; fan formation is associated with the erosion of canyons into the slope and the incision of fluvial valleys into the shelf. Siliciclastic sediment bypasses the shelf and slope through the valleys and canyons to feed the basin floor fan; sediment may be deposited at the mouth of a canyon or in an area widely separated from the canyon mouth—or a canyon may not be evident.