Abstract

Superscoops are large concave-up features associated with rocks deposited by eolian depositional systems. They can be tens of metres deep and several kilometres wide and are common in Pennsylvanian through Jurassic eolian sandstones of the Colorado Plateau. They are formed by wind deflation or water scouring and are filled with eolian or aqueous sediments. They are associated with entirely eolian sequences to mixed eolian and noneolian sequences. Formation of superscoops requires a pause in deposition followed by erosion. The surfaces are subsequently filled and preserved in the stratigraphic sequence. The preserved fill may contrast with enclosing deposits, thus providing information about ancient depositional systems not represented in enclosing deposits.

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