Gallery 24 - Coverack to Helford
Basalt Dyke
One of the numerous black Basalt Dykes near Leggan Point.
Dykes are sheet-like igneous intrusions .When molten magma flows upward through
near-vertical cracks (faults or joints) toward the surface and cools, dykes are formed.
Ref: 2942.3
Date: 05/03/2016
Location: SW 8070 2108