Landscapes and Landforms of England and Wales

Landscapes and Landforms of England and Wales

Author: Andrew Goudie

Publisher: Springer Nature

Published: 2020-05-10

Total Pages: 618

ISBN-13: 303038957X

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This book presents the geomorphological diversity of England and Wales. These regions are characterised by an extraordinary range of landforms and landscapes, reflecting both the occurrence of many different rock types and drastic climatic changes over the last few million years, including ice sheet expansion and decay. The book begins by providing the geological and geomorphological context needed in order to understand this diversity in a relatively small area. In turn, it presents nearly thirty case studies on specific landscapes and landforms, all of which are landmarks in the territory discussed. These include the famous coastal cliffs and landslides, granite tors of Dartmoor, formerly glaciated mountains of Snowdonia and the Lake District, karst of Yorkshire, and many others. The geomorphology of London and the Thames is also included. Providing a unique reference guide to the geomorphology of England and Wales, the book is lavishly illustrated with diagrams, colour maps and photos, and written in an easy-to-read style. The contributing authors are distinguished geomorphologists with extensive experience in research, writing and communicating science to the public. The book will not only be of interest to geoscientists, but will also benefit specialists in landscape research, geoconservation, tourism and environmental protection.


The Normans in South Wales, 1070–1171

The Normans in South Wales, 1070–1171

Author: Lynn H. Nelson

Publisher: University of Texas Press

Published: 2014-02-04

Total Pages: 226

ISBN-13: 0292781075

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A frontier has been called "an area inviting entrance." For the Norman invaders of England the Welsh peninsula was such an area. Fertile forested lowlands invited agricultural occupation; a fierce but primitive and disunited native population was scarcely a formidable deterrent. In The Normans in South Wales, Lynn H. Nelson provides a comprehensive history of the century during which the Normans accomplished this occupation. Skillfully he combines facts and statistics gleaned from a variety of original sources—The Anglo-Saxon Chronicle, the Domesday Book, Church records, charters of the kings and of the marcher lords, and more imaginative literary sources such as the chanson de geste and the frontier epic—to give a vivid picture of a century of strife. He describes the fluctuating conflict between Norman invaders in the lowlands and Welsh tribesmen in the highlands; the hard struggle of medieval frontiersmen to take from the new land a profit commensurate with their labors; the development of a Cambro-Norman society distinct and quite different from the Anglo-Norman culture which engendered it; and the attempt of the frontiersman to prevent the Anglo-Norman authorities from taking control of the lands he had won. The turbulent Welsh tribes provided an ever present harassment along the frontier, and Nelson begins his presentation with an account of the failure of the Saxons to control them. He examines the methods adopted by William the Conqueror to cope with the problem—the creation of the great marcher lordships and the subsequent problems in controlling these lordships—and the weakness of some Anglo-Norman kings and the strength of others. By 1171 the conquest of the Welsh frontier was complete; but as Nelson points out, this conquest was strangely limited. The frontier, which extended throughout the lowlands of Wales, stopped at the 600-foot contour line in the mountains. In his final chapter Nelson speculates upon the curious fact that large areas of seemingly inviting moorlands lying above this line remained closed to the Cambro-Norman, and his speculations lead him to some interesting inferences about the nature of the frontier's influence upon the civilization which moves in to occupy it.


Modelling the Evolution of Natural Fracture Networks

Modelling the Evolution of Natural Fracture Networks

Author: Michael John Welch

Publisher: Springer Nature

Published: 2020-09-18

Total Pages: 237

ISBN-13: 3030524140

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This book presents and describes an innovative method to simulate the growth of natural fractural networks in different geological environments, based on their geological history and fundamental geomechanical principles. The book develops techniques to simulate the growth and interaction of large populations of layer-bound fracture directly, based on linear elastic fracture mechanics and subcritical propagation theory. It demonstrates how to use these techniques to model the nucleation, propagation and interaction of layer-bound fractures in different orientations around large scale geological structures, based on the geological history of the structures. It also explains how to use these techniques to build more accurate discrete fracture network (DFN) models at a reasonable computational cost. These models can explain many of the properties of natural fracture networks observed in outcrops, using actual outcrop examples. Finally, the book demonstrates how it can be incorporated into flow modelling workflows using subsurface examples from the hydrocarbon and geothermal industries. Modelling the Evolution of Natural Fracture Networks will be of interest to anyone curious about understanding and predicting the evolution of complex natural fracture networks across large geological structures. It will be helpful to those modelling fluid flow through fractures, or the geomechanical impact of fracture networks, in the hydrocarbon, geothermal, CO2 sequestration, groundwater and engineering industries.