Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Sand Sheet

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_325

Definition

Sand-covered area with a featureless, low-relief surface and without superimposed individual dunes or high-order bedforms.

Category

Description

Featureless, nearly horizontally stratified continuous deposits (Grotzinger et al. 2005) of windblown fine-grained particles with low thermal inertia. Their surface may be smooth and nearly featureless, but there are often tabular-planar depositional features and various ripple-like bedforms observed (Breed et al. 1987). Sand sheets range from 100 s m2 to 100,000 m2 on Earth. Thickness can range from several centimeters to 10s m (Pye and Tsoar 1990).

Subtypes

  1. (1)

    Sand sheet: sheet-like sand blankets with broad, flat surface and distinct geographic boundaries. Their sand is poorly sorted (Pye and Tsoar 1990) and often shows a bimodal grain size population (silt, fine sand or poorly sorted coarse sand). They may contain ripples and zibars and are usually peripheral to major dune areas but occasionally...

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References

  1. Breed CS, McCauley JF, Davis PA (1987) Ripple blankets: geomorphic evidence for regional sand sheet deposits on Mars. XVII Lunar Planet Sci Conf 18:127Google Scholar
  2. Chojnacki M, and Moersch JE (2009) Valles Marineris dune fields: thermophysical properties, morphology, and provenance. XL Lunar planetary Science, vol XL, Abstract 2486Google Scholar
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  6. Mangold N et al (2011) Segregation of olivine grains in volcanic sands in Iceland and implications for Mars. Earth Planet Sci Lett 310:233–243CrossRefGoogle Scholar
  7. Maxwell TA (2005) Stability of Selima Planum, Earth and implications for Meridiani Planum, Mars. In: The geological society of America annual meeting, Salt Lake City, paper no 22–7. https://gsa.confex.com/gsa/2005AM/finalprogram/abstract_94956.htm
  8. McKee ED (1979) Introduction to a study of global sand seas. In: McKee ED (ed) A study of global sand seas, vol 1052, U.S. geological survey professional paper. U.S. G.P.O, Washington, DCGoogle Scholar
  9. Pye K, Tsoar H (1990) Aeolian sand and sand dunes. Unwin Hyman, London, p 396CrossRefGoogle Scholar
  10. Thomas DSG (1989) Aeolian sand deposits. In: Thomas DSG (ed) Arid zone geomorphology. Belhaven Press, London, pp 232–261Google Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Lunar and Planetary LaboratoryUniversity of ArizonaTucsonUSA
  2. 2.Konkoly Thege Miklos Astronomical InstituteResearch Centre for Astronomy and Earth SciencesBudapestHungary