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Wave pounding is the 'sledge hammer' effect of tonnes of water crashing against cliffs. It shakes and weakens the rocks leaving them open to attack from hydraulic action and abrasion. Eroded material gets carried away by the wave. Wave pounding is particularly fierce in a storm, where the waves are exceptionally large, and have a lot of energy ...
The best-known example in Germany is the Lange Anna on Heligoland, while, in England, a prominent example are Old Harry Rocks in Dorset. Ocean waves crashing against sea cliffs at Cape Pillar, Tasmania in Australia. Furthermore, on a rocky cliffed coast wave action is not the only driving force for coastline retreat.
If a cave wears through a headland, an arch forms. Further erosion causes the arch to collapse, leaving the pillar of hard rock standing away from the coast, the stack. Eventually, erosion will cause the stack to collapse, leaving a stump. This stump usually forms a small rock island, low enough for a high tide to submerge.
Gale force winds battered Portland Bill in Dorset on England’s south coast today (November 2). Video shows huge waves crashing against rocks. “Gusts reached 70 miles per hour,” the filmer said.
Waves crash against the sea front in Southsea as Storm Barra hit the UK (Andrew Matthews/PA) Sea water floods the shoreline outside the Royal Oak pub after high tide in Langstone, Hampshire ...
The boarded windows block the view of the ocean, but he can still hear the rumbling, followed by a few seconds of respite before another wave slams against the wall.
Hydraulic action, most generally, is the ability of moving water (flowing or waves) to dislodge and transport rock particles.This includes a number of specific erosional processes, including abrasion, at facilitated erosion, such as static erosion where water leaches salts and floats off organic material from unconsolidated sediments, and from chemical erosion more often called chemical ...
Abrasion platforms are shore platforms where wave action abrasion is a prominent process. If it is currently being fashioned, it will be exposed only at low tide, but there is a possibility that the wave-cut platform will be hidden sporadically by a mantle of beach shingle (the abrading agent).