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:
2016-03-05 00:00:00.0
Location:
SW 8070 2108
Photographer:

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:
2016-03-05 00:00:00.0
Location:
SW 8070 2108
Photographer: