Abstract

Cross-strata, formed by megaripple migration, have been investigated in a point bar deposit of the San Bernard River, Texas. High-angle cross-strata with downstream dip components and low-angle cross-strata with upstream dip components were found. The former originate on lee slopes and the latter on stoss sides of megaripples during flood stages of the river. Sets of cross-strata are about 1 ft thick and are generally non-continuous.

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