Click here for rock types within the Manx Group
Click here for 3D view of the Isle of Man
This is a representation of the rock types that occur at or near the surface on the Isle of Man. Most of the rocks are in fact covered by a thin layer of soil so that the map is an interpretation – the geology is extrapolated from areas where the rocks are exposed such as at the coast or in quarries. A large part of the Island is composed of a suite of rocks collectively known as the Manx Group. These were originally sediments deposited on the sea bed 490-470 million years ago.
See also Manx Group Fossils and Lamplugh’s Geology