Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Sand Patch

  • Andreas C. W. Baas
  • Henrik Hargitai
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_324

Definition

A thin layer of aeolian drift sand deposit (of uniform grain-size distribution) concentrated in a round or ellipsoid shape, usually rising slightly above a surrounding (higher-roughness) surface but without any slip-face development or evidence of lee-side flow separation.

Synonyms

Description

Irregularly shaped sand deposits (Bourke et al. 2004) (Fig. 1).
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References

  1. Bourke MC, Bullard JE, Barnouin-Jha OS (2004) Aeolian sediment transport pathways and aerodynamics at troughs on Mars. J Geophys Res 109:e07005. doi:10.1029/2003JE002155Google Scholar
  2. Cooper WS (1958) Coastal sand dunes of Oregon and Washington, vol 72, Memoir. Geological Society of America, New York, 167 ppGoogle Scholar
  3. Jäkel D (1980) Die bildung von barchanen in Faya-Largeau/Rep. du Tchad. Z Geomophol 24:141–159Google Scholar
  4. Kocurek G, Townsley M, Yeh E, Havholm K, Sweet ML (1992) Dune and dunefield development on Padre Island, Texas, with implications for interdune deposition and water-table-controlled accumulation. J Sediment Petrol 62:622–635Google Scholar
  5. Lancaster N (1996) Field studies of sand patch initiation processes on the northern margin of the Namib sand sea. Earth Surf Process Landf 21(10):947–954CrossRefGoogle Scholar
  6. Nield JM (2011) Surface moisture – induced feedback in aeolian environments. Geology 39:915–918. doi:10.1130/G32151.1CrossRefGoogle Scholar
  7. Nield JM, Wiggs GFS, Squirrell RS (2011) Aeolian sand strip mobility and protodune development on a drying beach: examining surface moisture and surface roughness patterns measured by terrestrial laser scanning. Earth Surf Process Landf 36:513–522. doi:10.1002/esp.2071CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Department of GeographyKing’s College LondonLondonUK
  2. 2.NASA Ames Research Center/NPPMoffett FieldUSA