From Wikipedia, the free encyclopedia
Rannavall (vananenud termin randvall ehk randrõõne[1]) on tormi(de) poolt mererannale heidetud klibust ning veeristest koosnev piklik positiivne pinnavorm.
Rannavallid moodustuvad suuremate tormide käigus. Nende moodustumine ei ole mitte pidev, vaid hüppeline.
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