Definition
Broad linear to sinuous–crescent-shaped transverse dune.
Category
A type of transverse dunes (category)
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
Glenn M (ed) (1979) Glossary, U.S. geological survey professional paper, 1052. McKee ED (ed) A study of global sand seas, U.S. Government Printing Office, Washington, pp 399–407
Lancaster N (1995) The geomorphology of desert dunes. Routledge, London
McKee ED (1979) A study of global sand seas: U.S. geological survey professional paper 1052, p 429
Pye K, Tsoar H (1990) Aeolian sand and sand dunes. Unwin Hyman, London
Thomas DSG (1989) Arid zone geomorphology. Belhaven Press, London, pp 232–261
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
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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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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