Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Ablation Hollow (Mars)

  • Nicolas MangoldEmail author
  • Henrik Hargitai
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_1

Definition

A closed depression inferred to be carved by melting or sublimation of ice from an ice-bearing unit.

Category

A type of  sublimation landform.

Synonyms

Note

This entry is about non-terrestrial ablation hollows.

Description

Closely spaced depressions with similar shapes, in the residual  polar cap of Mars producing a gentle hummocky pitted surface (Fisher et al. 2002). This terrain displays a rough topography of pits, cracks, and some knobs (Thomas et al. 2000). Pits joined in roughly linear strings or depressions with preferential direction form lineations (Fisher et al. 2002).

Morphometry

From millimeter to tens of kilometers in width, from millimeter to hundreds of meters in depth. Pits studied by Fisher et al. (2002) in the northern ice cap of Mars are tens of meters wide and 1–2 m deep (Fisher et al. 2002).

Subtypes

  1. (1)
    Ablation hollows (pitted terrain) on snow/frost/ice covered terrain.
    1. (1.1)

      “Cottage cheese...

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References

  1. Britt DT, Boice DC, Buratti BJ, Campins H, Nelson RM (2004) The morphology and surface processes of Comet 19/P Borrelly. Icarus 167:45–53. doi:10.1016/j.icarus.2003.09.004CrossRefGoogle Scholar
  2. Fisher DA, Winebrenner DP, Stern H (2002) Lineations on the “white” accumulation areas of the residual northern ice cap of Mars: their relation to the “accublation” and ice flow hypothesis. Icarus 159(1):39–52CrossRefGoogle Scholar
  3. Malin MC, Edgett KS (2001) Mars Global Surveyor Mars Observer Camera: interplanetary cruise through primary mission. J Geophys Res 106(E6):23429–23571CrossRefGoogle Scholar
  4. Mangold N (2011) Ice sublimation as a geomorphic process: a planetary perspective. Geomorphology 126:1–17CrossRefGoogle Scholar
  5. Milkovich SM, Head JW III (2006) Surface textures of Mars’ north polar layered deposits: a framework for interpretation and future exploration. Mars 2:21–45. doi:10.1555/mars.2006.0003CrossRefGoogle Scholar
  6. Rhodes JJ, Armstrong RL, Warren SG (1987) Mode of formation of “ablation hollows” controlled by dirt content of snow. J Glaciol 33(114):135–139Google Scholar
  7. Squyres SW (1989) Urey prize lecture: water on Mars. Icarus 79:229–288CrossRefGoogle Scholar
  8. Thomas PC, Malin MC, Edgett KS, Carr MH, Hartmann WK, Ingersoll AP, James PB, Soderblom LA, Veverka J, Sullivan R (2000) North-south geological differences between the residual polar caps on Mars. Nature 404:161–164CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Laboratoire de Planétologie et Géodynamique de NantesUniversité de Nantes/CNRSNantesFrance
  2. 2.NASA Ames Research Center/NPPMoffett FieldUSA