lateral accretion deposit

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Inclined layers of sediment, deposited laterally rather than in horizontal strata, particularly by the lateral outbuilding sediment on the surface of a river point bar. The inclined surfaces thus record the progressive migration of the point bar. The dip of the lateral accretion deposit can be used to determine the size of the point bar and channel geometry. See also epsilon cross-bedding.

Subjects: Earth Sciences and Geography.

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