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Encyclopedia of Planetary Landforms pp 1–4Cite as

Crater Floor with Irregular Depressions

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Definition

Steep-walled depressions on the floors of craters.

Synonyms

Irregular depression crater

Description

Mars: depressions on the floor units of impact craters (Fig. 1). Depression walls often have straight segments and exhibit layering. The parent craters tend to be shallower than the surrounding (i.e., nondepressed) craters (Korteniemi et al. 2005, 2006).

Fig. 1
figure 1

Irregular depressions in a 100-km-diameter crater at 31.7°S 41.1°E, Mars. Scale bar 25 km. THEMIS day IR mosaic (NASA/JPL-Caltech/Arizona State University)

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References

  • Korteniemi J, Kostama VP, Törmänen T, Aittola M., Öhman T, Lahtela H, Raitala J, Neukum G (2005) Complex geology of two large impact craters in Tyrrhena Terra, Mars: detailed analysis using MEX HRSC camera data. J Geophys Res 110, E12S18. doi:10.1029/2005JE002427

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  • 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. ESA-ESTEC, Noordwijk, The Netherlands, pp 193–198 (CD-ROM)

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Authors and Affiliations

  1. Earth and Space Physics, Department of Physics, University of Oulu, Oulu, Finland

    Jarmo Korteniemi

Authors
  1. Jarmo Korteniemi
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Correspondence to Jarmo Korteniemi .

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Korteniemi, J. (2014). Crater Floor with Irregular Depressions. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_75-2

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  • DOI: https://doi.org/10.1007/978-1-4614-9213-9_75-2

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-9213-9

  • eBook Packages: Springer Reference Earth and Environm. ScienceReference Module Physical and Materials ScienceReference Module Earth and Environmental Sciences

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