Beach Materials

beach with shells
Padre Island National Seashore, Texas.

NPS photo.

Ocean basins serve as collecting bins for eroded debris that is washed from continents. Studying the sediment source(s), color, size, and sorting on the beach helps the coastal geologist to understand and describe the dynamic systems that transport, deposit, and erode our coasts and shorelines.


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Last updated: May 17, 2019


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