Sand waves
Sand waves under water in a shallow part of Gullmarn fjord

A sand wave is a lower regime sedimentary structure that forms across from tidal currents.[1]

Formation

Sand waves are formed through the action of the wind or water (through waves or tidal currents)[2] and are a product of unidirectional flow. Sand waves are the result of a mean flow velocity between 40 and 70cm/s.

Sand waves form also underwater.[3][4]

See also

References

  1. ↑ Allen, J.R.L. (1980). "Sand waves: A model of origin and internal structure". Sedimentary Geology. 26 (4): 281–328. Bibcode:1980SedG...26..281A. doi:10.1016/0037-0738(80)90022-6.
  2. ↑ Olsson-Seffer, Pehr Hjalmar (1910). Genesis and Development of Sand Formations on Marine Coasts. Augustana Book Concern, Printers. p. 17. Sand wave formed by winds.
  3. ↑ Pilkey, Orrin H. (2011-02-19). The World's Beaches: A Global Guide to the Science of the Shoreline. University of California Press. ISBN 978-0-520-26871-5.
  4. ↑ View toward San Francisco Bay of the massive sand wave field – via ResearchGate.

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