Circumferential Depression

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_58-2

Definition

Moatlike depressions surrounding or flanking topographic heights at northern low latitudes of Mars.

Synonyms

Moat; Phantom lobate debris aprons (Head and Marchant 2009)

Description

Flat-floored depressions located around isolated topographic remnants or alongside escarpments of plateaus (Hauber et al. 2008) (Fig. 1a). Their flat floors suggest that the material that once filled the depression (see Formation) was removed (Fig. 1b).

Keywords

Depression Radar 
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References

  1. Hauber E, van Gasselt S, Chapman MG, Neukum G (2007) Geomorphic evidence for former lobate debris aprons at low latitudes on Mars: indicators of the Martian paleoclimate. 38th Lunar Planet Sci, abstract #1666, HoustonGoogle Scholar
  2. Hauber E, van Gasselt S, Chapman MG, Neukum G (2008) Geomorphic evidence for former lobate debris aprons at low latitudes on Mars: indicators of the Martian paleoclimate. J Geophys Res 113(E2), CiteID E02007Google Scholar
  3. Head JW, Marchant D (2009) Inventory of ice-related deposits on Mars: evidence for burial and long-term sequestration of ice in non-polar regions. EGU General Assembly 2009, Vienna, 10962Google Scholar
  4. Plaut JJ, Safaeinili A, Holt JW, Phillips RJ, Head JW III, Seu R, Putzig NE, Frigeri A (2009) Radar evidence for ice in lobate debris aprons in the midnorthern latitudes of Mars. Geophys Res Lett 36:L02203. doi:10.1029/2008GL036379CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Planetary Sciences and Remote SensingInstitute of Geological Sciences, Freie Universitaet BerlinBerlinGermany