Geology - Pembrokeshire
Ripple Marks
Ripples are one of the most commonly preserved sedimentary structures, as it takes
only a small storm or other event to cover and preserve them.
A rock fall , between Wiseman's Bridge and Amroth , has conveniently exposed
the surface of a Rock showing the Ripple Marks.
Ripple Marks were formed by the actions of ancient winds, streams, waves or currents ,
millions of years ago.
The sediments were gradually transformed into rock by natural processes -
of pressure exerted by the weight of overlying sediments and natural cementation.
Ref: 10793
Date: 14/09/2012
Location: SN 155.066
