antidune

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antidune

(ˈæntɪˌdjuːn)

(Geological Science) a sand hill or inclined bedding plane that forms a steep slope against the direction of a fast-flowing current

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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.

Sedimentology and stratigraphy of the type section of the Pennsylvanian Boss Point Formation, Joggins Fossil Cliffs, Nova Scotia, Canada

5), which may represent a transitional antidune, and by sandy wings, which record periods of maximum discharge when flow topped levees (Friend et al.

Stratigraphy and sedimentology of early Pennsylvanian red beds at Lower Cove, Nova Scotia, Canada: the Little River Formation with redefinition of the Joggins Formation

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.

Hydrodynamic controls of morpho-sedimentary evolution in a rock-bounded mesotidal estuary. Tina Menor (N Spain)