The Portland stone is a hard limestone and forms a protective rampart to the Lulworth coastline. It is resistant to the battering of the waves, however where it has been breached bays (such as Lulworth cove) have formed where the softer rocks behind have been eroded away.
Added:
7th Dec 2005 by Diane Earl
Subjects:
Geography, Science
Key Stages:
Key Stage 2, Key Stage 3, Key Stage 4, Key Stage 4+
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