A Tertiary Igneous Dyke
A Tertiary igneous dyke cutting through a sandstone deposit. The igneous rock pierced its way through the earth's crust in a vertical fissure. The surrounding triassic sandstones have been baked and hardened by the heat of the intrusion. The location is the shore west of Kildonan Castle, south-west of the Isle of Arran, Scotland
Picture No
10502836
Media ID
46615760
Size
2979px x 4670px
(1.6MB)
Credit
Mary Evans / Grenville Collins Postcard Collection
Source
Unattributed postcard
Date
circa 1920
