Subaqueous fan

Subaqueous fan

A subaqueous fan is a fan-shaped deposit formed beneath water (similar to deltas or terrestrial alluvial fans), and are commonly related to glaciers [cite journal |first=H.A.J. |last=Russell |coauthors=Arnott, R.W.C. |title=Hydraulic-jump and hyperconcentrated-flow deposits of a glacigenic subaqueous fan: Oak Ridges Moraine, southern Ontario, Canada |journal=Journal of Sedimentary Research |volume=73 |issue=6 |pages=887–905 |doi=10.1306/041103730887 |year=2003 ] and crater lakes. [cite journal |first=James D. L. |last=White |title=Pliocene subaqueous fans and Gilbert-type deltas in maar crater lakes, Hopi Buttes, Navajo Nation (Arizona), USA |journal=Sedimentology |volume=39 |issue=5 |year=1992 |doi=10.1111/j.1365-3091.1992.tb02160.x |pages=931–946 ]

Subaqueous fan deposits are generally described as coarse to fine gravel and/or sand, with variable texture and sorting.

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