Glacitectonics Field Guide
Edited by E.Phillips, J. R. Lee and H. M. Evans
IPA
GLWG
1998
2011
Glacitectonics Field Guide Edited by E. Phillips, J.R. Lee and H.M. Evans
Quaternary Research Association
2011
Glacial Landsystems Working Group International Permafrost Association
Cover Image: Glacitectonised till and sand intraclasts at West Runton, Norfolk, UK.
This Field and Technical Guide was produced to accompany the Glacitectonics Workshop in Sheringham, North Norfolk, UK between 11th17th September 2011. ©Quaternary Research Assocation, 2011
ISSN 0261 3611
ISBN 0 907 780 830
©All rights reserved. No part of this book may be reprinted or utilised in any form or by any electronic, mechanical or other means, now known or hereafter invented, including photocopying and recording in any information storage or retrieval system without permission in writing from the publishers.
Printed by: MWL Printers, Units 10-13 Pontyfelin Industrial Estate, New Inn, Pontypool, South Wales, NP4 0DQ.
Recommended reference: Phillips, E., Lee, J.R. and Evans, H.M. (eds.). 2011. Glacitectonics – Field Guide. Quaternary Research Association.
Contributors Peter Banham Helen Burke Richard Chiverrell Hannah Evans Amanda Ferguson Jane Hart Peter Hobbs David Vaughan-Hirsch Jonathan R. Lee Jaap J.M. van der Meer Julian Murton Catherine Pennington Emrys Phillips James Riding David Roberts Kenneth Rijsdijk Geoff Thomas Richard Waller William Warren
[email protected] British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. School of Environment, University of Liverpool, Roxby Building, Liverpool L69 7ZT, UK. British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. School of Geography, Queen Mary, University of London, Mile End Road, London E1 4NS, UK. Department of Geography, University of Southampton, Highfield, Southampton, SO17 1BJ, UK. British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. British Geological Survey, Murchison House, West Mains Road, Edinburgh EH9 3LA, Scotland, UK. British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. School of Geography, Queen Mary, University of London, Mile End Road, London E1 4NS, UK. Department of Geography, University of Sussex, Brighton, BN1 9QJ. British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. British Geological Survey, Murchison House, West Mains Road, Edinburgh EH9 3LA, Scotland, UK. British Geological Survey, Keyworth, Nottingham, NG12 5GG, UK. Department of Geography, Durham University, Science Laboratories, South Road, Durham DH1 3AH, UK. Institute of Biodiversity & Ecosystems Dynamics, University of Amsterdam, The Netherlands. School of Environment, University of Liverpool, Roxby Building, Liverpool L69 7ZT, UK. School of Physical and Geographical Sciences, William Smith Building, Keele University, Keele, Staffordshire ST5 5BG, UK. Geological Survey of Ireland, Beggars Bush, Dublin 4, Ireland.
ii
Contents Acknowledgements
1
Foreword – P.H. Banham
2
Preface – E. Phillips, J.R. Lee and H.M. Evans
3
Section A: Techniques and Methodologies 1.
Description, measurement and analysis of glacitectonically deformed sequences E. Phillips and J.R. Lee
2.
Micromorphological analysis of deformation structures A. Ferguson, J.J.M. van der Meer and E. Phillips
32
3.
Macrostructural Analysis: unravelling polyphase glacitectonic histories J.J.M. van der Meer, G.S.P. Thomas, R.C. Chiverrell, J.R. Lee, E. Phillips, K. Rijsdijk and W.P. Warren
53
4.
Examples of Macrostructural Analysis Example 1: Styles of structural deformation and syn-tectonic sedimentation around the margins of the Late Devensian Irish Sea Ice stream: the Isle of Man, Llyn Peninsula and County Wexford G.S.P. Thomas and R.C. Chiverrell Example 2: Polyphase deformation at Killiney, Ireland J.J.M. van der Meer, K. Rijsdijk and W.P. Warren
Section B: Glacitectonics from Northeast Norfolk 5.
An Introduction to the glacial geology and history of glacitectonic research in Northeast Norfolk J.R Lee, E. Phillips, H. M. Evans and D. Vaughan-Hirsch
iii
5
59
79
101
6.
Proglacial to subglacial deformation: West Runton to Sheringham E. Phillips, J.R. Lee and H.F. Burke
116
7.
Development of a ‘soft deforming bed’ within a subglacial shear zone: an example from Bacton Green J.R. Lee and E. Phillips.
130
8.
Macro- and microstructural evidence for the deforming glacier bed model: East Runton to West Runton D.H. Roberts and J.K. Hart
143
9.
Micromorphology and microstructural analysis of polyphase deformation in tills: West Runton A. Ferguson, J.J.M. van der Meer and E. Phillips
154
10. Sand intraclast development and the deformation of glacially overridden permafrost: West Runton R.I. Waller, J.B. Murton, E. Phillips, J.R. Lee and C.A. Whiteman
162
11. Glacitectonic controls in subglacial to ice-marginal drainage: Sheringham to Weybourne E. Phillips and J.R. Lee
182
12. Glacitectonic rafting of chalk bedrock: Overstrand D. Vaughan-Hirsch, E. Phillips, J.R. Lee, H.F. Burke and J.K. Hart
198
13. Trimingham: structural architecture of the Cromer Ridge push moraine and controls for landslide geohazards J.R. Lee, C.V.L. Pennington and P.R.N. Hobbs
217
14. Polyphase deformation during possible active retreat, Weybourne Town Pit H.M. Evans, J.R. Lee and J.B. Riding
228
References
240
iv
Appendix - Glossary
253
v
