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Barchanoid Ridge

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  • First Online:
Encyclopedia of Planetary Landforms

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Definition

Broad linear to sinuous–crescent-shaped transverse dune.

Category

A type of transverse dunes (category)

Synonyms

Barchan chain; Barchanoid dune; Crescentic ridge; Sinuous transverse dune

Description

Asymmetrical wavy dune ridge consisting of parallel rows of coalesced barchans (connected crescents) in plan view. It is oriented transverse to the predominant wind direction and migrates forward. It has gently dipping windward slopes and steeply dipping (32–34°) leeward slopes. Barchanoid ridges are typically separated by open, inter-dune corridors. Inter-dune depressions between closely spaced barchanoid ridges are termed fulje (Glenn 1979).

Their individual segments show greater curvature than the very slightly curved transverse ridges (Breed and Grow 1979; Thomas 1989, p. 248 and references therein). They show curving strata in cross sections parallel to the crest, in contrast to transverse ridges that have largely horizontal strata.

Barchanoid ridges display two alternating...

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References

  • Breed CS and Grow T (1979) Morphology and distribution of dunes in sand seas observed by remote sensing. In: McKee ED (1979) (ed) A study of global sand seas. U.S. Government Priting Office, Wahington, DC, pp 253–302

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  • McKee ED (1979) A study of global sand seas: U.S. geological survey professional paper 1052, p 429

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  • Tirsch D (2009) Dark dunes on Mars: analyses on origin, morphology and mineralogical composition of the dark material in Martian craters. Dissertation. Freie Universität, Berlin. http://www.diss.fu-berlin.de/diss/receive/FUDISS_thesis_000000008848

  • Tirsch D, Jaumann R, Pacifici A, Poulet F (2011) Dark aeolian sediments in Martian craters: composition and sources. J Geophys Res Planet. doi:10.1029/2009je003562

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  • Wiggs GFS (2002) Sediment mobilization by the wind. In: Thomas DSG (ed) Arid zone geomorphology: process, form, and change in drylands. Wiley and Sons, Chichester/New York

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Author information

Authors and Affiliations

  1. German Aerospace Center DLR, Institute of Planetary Research, Berlin, Germany

    Daniela Tirsch

Authors
  1. Daniela Tirsch
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Correspondence to Daniela Tirsch .

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© 2014 Springer Science+Business Media New York

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Tirsch, D. (2014). Barchanoid Ridge. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_13-2

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  • DOI: https://doi.org/10.1007/978-1-4614-9213-9_13-2

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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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