North Cornwall - Geology
Folds - Boscastle (S8)
Impressive folding in a rocky outcrop between Penally Hill and Penally Point - Boscastle.
Isoclinal Folds have been deformed by Zig-Zag Ruck Folds.
Rocks behave differently when subjected to the pressures of plate collision , some are able to absorb energy by
Rucking up into a series of folds while other more rigid rocks tend to fracture or fault.
The rocks here are are black slates, siltstones and laminated sandstones of the Crackington Formation.
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Boscastle is in Gallery 8
Ref: 4749
Date: 26/04/2017
Location: SX 0949.9149