Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Dust Pond

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_132

Definition

Fine-grained deposits in topographic lows transported and sorted by intense localized electric fields acting on charged dust or by impact-induced shaking.

Synonyms

Description

Fine-grained smooth deposits in depressions (craters) displaying sharply bounded surfaces (Cheng et al. 2002). On Eros, color properties of dust ponds are distinct from the surrounding terrain: dust ponds are bluish and rich in silicate material (olivines and pyroxenes) (Robinson et al. 2001).

Formation

Possible dust transporting mechanisms and other formation models include
  1. (1)

    Electrostatic charging, mobilization, and subsequent transport of charged dust (Lee 1996; Tepliczky and Kereszturi 2002; Haugsjaa and Colwell 2006; Poppe et al. 2012; Hartzell et al. 2012): Photoelectric charging can generate large enough potential differentials between illuminated and dark regions to mobilize charged dust particles. The size of the dust particles that can...

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References

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.NASA Ames Research Center/NPPMoffett FieldUSA
  2. 2.Laboratory for Atmospheric and Space Physics and Department of PhysicsUniversity of ColoradoBoulderUSA