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Encyclopedia of Planetary Landforms pp 1–5Cite as

Tongue-shaped and arcuate ridges inside depressions (Mars)

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Definition

Arc-shaped sinuous ridges on the floor of impact craters or other depressions in the middle- and high-latitude zones of Mars.

Description

Concave depressions containing elevated sharp ridges on crater floors, at the base of many gully on Mars (Berman et al. 2004). Inside the concave depressions, the rims enclose smooth floors and occasionally are associated with lineated or rough-textured crater floors (Howard 2003) (Figs. 1 and 2). Tongue ridges may merge to produce a complex, scalloped appearance (arcuate ridges). Arcuate ridges run parallel to the crater perimeter (Figs. 3 and 4).

Fig. 1
figure 1

Tongue ridges in a crater at 43.4°S 197.9°E. Crater rim is at top, crater floor is at bottom. Scale bar 500 m. MOC E0902399 (NASA/JPL/Malin Space Science Systems)

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References

  • Berman DC (2003) Hillside gullies and possible glacial landforms associated with the degradation of highland craters on Mars. Master’s thesis, University of Arizona, Tucson

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  • Berman DC, Hartmann WK, Crown DA (2004) The distribution of gullies and tongue-shaped ridges and their role in the degradation of martian craters. In: 35th lunar and planetary science, League City, Texas, #1391

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  • Berman DC, Hartmann WK, Crown DA, Baker VR (2005) The role of arcuate ridges and gullies in the degradation of craters in the Newton Basin region of Mars. Icarus 178:465–486

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  • Howard AD (2003) Tongue ridges and rumpled crater floors in mid-southern-latitude martian craters. In: 34th lunar and planetary science, League City, Texas, #1065

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Author information

Authors and Affiliations

  1. Konkoly Thege Miklos Astronomical Institute, Research Center for Astronomy and Earth Sciences, Budapest, Hungary

    Ákos Kereszturi

  2. Planetary Science Research Group, Institute of Geography and Earth Sciences, Eötvös Loránd University, Budapest, Hungary

    Henrik Hargitai

Authors
  1. Ákos Kereszturi
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  2. Henrik Hargitai
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Correspondence to Ákos Kereszturi .

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Kereszturi, Á., Hargitai, H. (2014). Tongue-shaped and arcuate ridges inside depressions (Mars). In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_377-1

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  • DOI: https://doi.org/10.1007/978-1-4614-9213-9_377-1

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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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