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Home > Explore! > Marine Geology > Field Localities > Seawall and Popham Beach Dynamics > Figure 18



Figure 18. A few places on the spit also have larger sand forms called megaripples. There are troughs or deeper holes in these that also contain smaller ripples formed by waves and currents. When the tide covers these features, walking through them in a current can be challenging. MGS file photo by S. M. Dickson taken November 4, 2008.


Last updated on November 6, 2008