Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Source-Bordering Dune

  • Jan-Hendrik May
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_588

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).

Category

A type of  dune

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)

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).

Subtypes

Three subtypes of SBDs are distinguished depending on the sedimentary environment of the source region:
  1. (1)

    Riverine (fluvial, Fig. 1; Page et al. 2001)

     
  2. (2)

     Lunette...

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References

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.School of Earth and Environmental SciencesUniversity of WollongongWollongongAustralia