The mud micro-washovers preserved on mud-coated, rippled sand flats in the macrotidal Severn Estuary occur as rows of small triangular lobes of sediment draped along the crests of ebb-oriented current ripples. The lobes point in the direction of the wind blowing when the flats were exposed and are thought on circumstantial grounds to record the wind-provoked rippling and splashing of liquid mud from the partly full ripple troughs up and over the crests.

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