Abstract

In exposures of Appin quartzite of the Dalradian on Ardsheal peninsula, south of Kentallen, western Scotland, washout structures, ranging in size from a few inches to several feet, can be observed. They are recognized by their convex-toward-a-base shape, being flat along the upper bedding plane, truncation of one structure by another, and the presence of several structures along one horizon. Their occurrence is typical in the current and coarse-graded bedding of the quartzite and is consistent with deltaic deposition. They can be used in determining the way-up of beds.

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