Describes the igneous rocks of Great Britain that formed as a direct result of the Caledonian Orogeny, between 500 and 390 million years ago. This work contains 130 GCR site descriptions illustrating the widespread and varied nature of the igneous activity and highlighting critical localities of historical and continuing international importance.Richardson, S. W (1968) The petrology of the metamorphosed syenite in Glen Dessarry, Invemess-shire. ... Roberts, B. (1979) The Geology of Snowdonia and Llyn: an Outline and Field Guide, Adatn Hilger, Bristol. Roberts ... Fabric studies in the Llwyd Mawr Ignimbrite, Caernarvonshire, North Wales. ... Roberts, J. L. ( 1966a) ignimbrite eruptions in the volcanic history of the Glencoe cauldron subsidence.
|Title||:||Caledonian Igneous Rocks of Great Britain|