Sentences with phrase «runup deposits»

The Eemian - age chevron beach structures with consistent southwesterly direction throughout windward shores in the Bahamas, with wave runup deposits at elevations as much as 20 — 40 m above today's sea level and reaching as far as a few kilometers inland, must have been formed by massive storms in the direction of the prevailing winds.

Concurrently, coastlines of the Bahamas and Bermuda were impacted by massive storms generated in the North Atlantic Ocean, resulting in a unique trilogy of wave - transported deposits: megaboulders, chevron - shaped, storm - beach ridges, and runup deposits on high dune ridges.

While perhaps more mundane than the megaboulders (found only locally on Eleuthera), the sedimentological structures found within chevron ridge and runup deposits across islands throughout the Bahamas and Bermuda point to frequent and repeated inundation by powerful storm waves, in some locations leaving storm deposits tens of meters above sea level.