cross bed

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A sedimentary structure that forms in the lower flow regime, where ridges of sediment form perpendicular to flow direction, but within the ridges, sediment layers and dips toward flow direction. Found in ripples and dunes. Can be tabular, sinuous, or trough shaped.

cross bedding, cross bedded, cross strata, cross stratification
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Author: Chris

Assistant Professor, Salt Lake Community College, Salt Lake City, Utah