Stair Hole is a small cove situated immediately west of Lulworth Cove. Along much of the coastline the steeply dipping Portland limestone and basal Purbeck limestones form an outer barrier against the sea. However in places such as Stair Hole the sea has breached the outer rocks forming small natural arches. Through these arches, the sea enters to erode the softer parts of the Purbeck limestones and shales. Soft multicoloured Wealden strata slump southwards towards the sea.
Added:
9th Dec 2005 by Diane Earl
Subjects:
Geography, Science
Key Stages:
Key Stage 3, Key Stage 4, Key Stage 4+
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Picture 1 of 15 - Stair Hole & Lulworth Cove development
