Some of the Geological features around the Cornwall Coast between Helford and Cremyll
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Basic Geology :-
Devonian rocks 417 - 354 million years old (myo ), form the basis of most of Cornwalls Geology.
Subject to deformation during the Variscan Orogeny about 380 - 280 myo.
These are hard rocks, resistant to erosion, often resulting in dramatic sea cliffs .