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Abyssal/Submarine Fan (Physiographic Setting)

Component: Physiographic Setting

Unique Identifier: 39

Physiographic Setting Abyssal/Submarine Fan


Description
Definition A low, outspread, relatively flat-to-gently sloping mass of loose material—shaped like an open fan or a segment of a cone—deposited by a flow of water at the place where it issues from a narrower or steeper-gradient area into a broader area, valley, flat, or other feature. Abyssal fans form at the mouths of submarine canyons, and fans are also the result of turbidities (that is, gravity-driven, underwater avalanches).