Download or read book Caledonian Igneous Rocks of Great Britain written by D. Stephenson and published by . This book was released on 1999 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.