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The Lewisian
The Lewisian

The Lewisian

Britain’s oldest rocks


336 Pages, 8 x 10.25

Formats: Cloth

Cloth, $45.00 (US $45.00) (CA $61.00)

Publication Date: July 2022

ISBN 9781780460987

Rights: US & CA

Dunedin Academic Press (Jul 2022)

Not Yet Published. Estimated release date: July 2022


The first 2,500 million years of the geological history of Britain are stored in the gneisses of the Lewisian Complex of North West Scotland. This book explores the long journey of discovery in which this history has been gradually deciphered since the end of the 19th Century when these rocks were first investigated in detail. The usual tools of stratigraphic investigation were of no value in dealing with such a complex assemblage of highly deformed and metamorphosed rocks; there was no fossil evidence and few signs of recognisable sedimentary strata. This book charts the increasing sophistication of the geochronological and geochemical techniques used to decipher the complex. The first important breakthrough was the recognition that a set of intrusive metamorphosed dykes could be used, perhaps, to separate episodes of deformation and metamorphism that occurred before the dykes were intruded, from those that occurred subsequently. Geochronological dating methods evolved from the first relatively crude potassium-argon and uranium-lead dates in the 1950s to the present amazingly accurate lead isotope dates. Geochemical techniques have also advanced to the point when mafic igneous assemblages can be identified as having oceanic volcanic arc signatures or were the products of intra-continental magmatism. Thus, from a stratigraphy composed of three events, Scourian, dyke intrusion, and Laxfordian, has grown a complex history covering many separate events of igneous, metamorphic, and tectonic activity spanning 2,500 million years of Precambrian time. Much of the extensive literature on the Lewisian is highly specialised and not easily accessible to the general reader; this book is an attempt to distil the most important results of this research into a more user-friendly form. It will appeal to many geologists including students, geological visitors to the North West of Scotland, and academics seeking a readable account of remarkable and significant advances in earth science.

Author Biography

Graham Park is Emeritus Professor of Tectonic Geology at the University of Keele. He is the author of the best-selling Introducing Geology: A Gude to the World of Rocks, The Making of Europe: A geological history, and the award winning Mountains: The origins of the Earth's mountain systems also published by Dunedin Academic Press.