Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Chaotic Crater Floor (Mars)

  • Jarmo Korteniemi
  • Henrik Hargitai
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_44


Intracrater occurrence of chaotic terrain; a crater interior morphology.


A type of  modified crater

A type of  chaotic terrain (Mars)


Chaotic floor crater (CF); Collapsed crater (CC, Rodriguez et al. 2005).


Knobs and irregular mesas that occur in groups or as isolated features (van Kan Parker et al. 2010) inside martian craters (Figs. 1, 2, 3, and 4). Their extent is limited to (1) the inner margin of the crater rim or (2) a circular moat if no rim is present. Craters exhibiting chaotic floor are typical starting points of small and medium size  outflow channels and occur in close proximity of chaotic terrains and  fractured floor craters (Korteniemi et al. 2006 and references therein). Some collapsed floor craters have no apparent outlets.
This is a preview of subscription content, log in to check access.


  1. Glotch TD, Christensen PR (2005) Geologic and mineralogic mapping of Aram Chaos: evidence for a water-rich history. J Geophys Res 110:E09006. doi:10.1029/2004JE002389Google Scholar
  2. Grotzinger J, Beaty D, Dromart G, Gupta S, Harris M, Hurowitz J, Kocurek G, McLennan S, Milliken R, Ori GG, Sumner D (2011) The sedimentary record of Mars. Sed Rec 9:4–7CrossRefGoogle Scholar
  3. Korteniemi J, Aittola M, Öhman T, Raitala J (2006) Floor-fractured craters on the terrestrial planets – the Martian perspective. In: Wilson A (ed) Proceedings, 40th ESLAB – first international conference on impact cratering in the solar system, ESA special publication SP-612, 08-12 May 2006, Noordwijk, The Netherlands. pp 193–198Google Scholar
  4. Orphal DL, Schulz PH (1978) Manicouagan, a terrestrial analog of lunar floor-fractured craters? Meteoritics 13:591–593Google Scholar
  5. Pedersen GBM, Head JW (2010) Chaos formation by sublimation of volatile-rich substrate: evidence from Galaxias Chaos, Mars. Icarus 211:316–329CrossRefGoogle Scholar
  6. Rodriguez JAP, Sasaki S, Kuzmin RO, Dohm JM, Tanaka KL, Miyamoto H, Kurita K, Komatsu G, Fairén AG, Ferris JC (2005) Outflow channel sources, reactivation, and chaos formation, Xanthe Terra, Mars. Icarus 175:36–57CrossRefGoogle Scholar
  7. Schultz PH, Glicken H (1979) Impact crater and basin control of igneous processes on Mars. J Geophys Res 84(B14):8033–8047CrossRefGoogle Scholar
  8. Schultz PH, Manley WD Jr, Ingerson FE (1973) Comparison of lunar and martian crater floors. Eos Trans AGU 54 #1127Google Scholar
  9. Sharp RP (1973) Mars: fretted and chaotic terrains. J Geophys Res 78(20):4073–4083. doi:10.1029/JB078i020p04073CrossRefGoogle Scholar
  10. Stockman RH (1976) Martian source craters. NASA Planetary geology program, the colloquium on water in planetary regoliths, Hanover, 5–7 Oct 1976Google Scholar
  11. van Kan PM, Zegers T, Kneissl T, Ivanov B, Foing B, Neukum G (2010) 3D structure of the Gusev Crater region. Earth Planet Sci Lett 294:411–423CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Earth and Space Physics, Department of PhysicsUniversity of OuluOuluFinland
  2. 2.Arctic Planetary Science InstituteRovaniemiFinland
  3. 3.NASA Ames Research Center/NPPMoffett FieldUSA