antidune


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antidune

(ˈæntɪˌdjuːn)
n
(Geological Science) a sand hill or inclined bedding plane that forms a steep slope against the direction of a fast-flowing current
References in periodicals archive ?
Climbing-ripple cross-laminae and horizontal laminae are abundant in the upper portion of many channel bodies, with some partially preserved antidune bedforms (Allen et al.
5), which may represent a transitional antidune, and by sandy wings, which record periods of maximum discharge when flow topped levees (Friend et al.
Nevertheless, the expected bedforms according the hydro-sedimentary characteristics of the environment (Harms et al., 1975, diagram) would be plane bed during the maximum ebb and antidunes during the maximum flood, both corresponding with a higher flow regime than the indicated by the observed bedforms.