Definition
There is no formal definition, and source-bordering dunes (SBD) are not listed in the Encyclopedia of Geomorphology (Goudie 2004). The term SBD generally describes a dune closely bordering the leeside of its sediment source (Page et al. 2001), but more specifically, it has been applied to sand dunes downwind of sand bed rivers (Page 1971; Bullard and McTainsh 2003).
Synonyms
Lee-source dune, or umbrafon dune (Melton 1940); Source-bordering loess dune (Stone 1967); Source-bordering rampart (Wopfner and Twidale 1988); Riverine dune (Ivester and Leigh 2003)
A type of dune
Description
SBDs develop from deflation out of a sediment source and deposition parallel to its margin resulting in dune forms, which are oriented transverse to the main wind direction (Bullard and McTainsh 2003).
References
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May, JH. (2014). Source-Bordering Dune. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_588-1
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_588-1
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