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2.1.3.6 Lateral Bars

Lateral bars form along the margins of relatively straight sand-rich channels. The bars are exposed during low flow, but floodwaters wash coarse material across the top where deposition occurs downstream. Bedding consists of low-angle accretionary foreset beds and the structures are mostly planar.

Although the lateral and tranverse bars are similar, the lateral bars tend to accrete laterally into the channel while the tranverse bars migrate downstream.


Images
Longitudinal, transverse & lateral migrating bars
Longitudinal, transverse & lateral migrating bars
Galloway, W. E. and D. K. Hobday.
Terrigenous Clastic Depositional Systems.
Springer-Verlay New York, Inc., New York, 1983.
Longitudinal, transverse & lateral migrating bars 

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