Definition
Elevated sediment structure on the downflow side of small topographic obstacles.
Category
A type of drift deposit, a type of obstacle dune, inner part of a current crescent.
Synonyms
Less Frequently used Synonyms
Comet mark (defined as “obstacle marks with an erosional tail of considerable length relative to their width”) (Werner and Newton 1975); Current shadow (Bishop 2011; Allen 1982); Rat tail (cm-scale forms in subglacial meltwater scoured bedrock; Prest 1983); Remnant rock ridge (Sharpe and Shaw 1989); (Bagnold 1954, p. 159); Scour remnant ridge (e.g., in snow; Allen 1965); Shadow ridge (Hesp 1981).
Description
Formation
Ridges...
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References
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Hargitai, H., Lancaster, N. (2015). Ridge in Current Shadow. In: Hargitai, H., Kereszturi, Á. (eds) Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3134-3_531
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DOI: https://doi.org/10.1007/978-1-4614-3134-3_531
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