Devonian and Carboniferous Stratigraphical Correlation and Interpretation in the Central North Sea, Quadrants 25 – 44
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CR/15/117; Draft 0.1 Last modified: 2016/03/24 15:19 Devonian and Carboniferous stratigraphical correlation and interpretation in the Central North Sea, Quadrants 25 – 44 Energy and Marine Geoscience Programme Commissioned Report CR/15/117 CR/15/117; Draft 0.1 Last modified: 2016/03/24 15:19 BRITISH GEOLOGICAL SURVEY ENERGY AND MARINE GEOSCIENCE PROGRAMME COMMISSIONED REPORT CR/15/117 Devonian and Carboniferous The National Grid and other stratigraphical correlation and Ordnance Survey data © Crown Copyright and database rights interpretation in the Central North Sea, 2015. Ordnance Survey Licence No. 100021290 EUL. Quadrants 25 – 44 Keywords Report; Stratigraphy, Carboniferous, Devonian, Central North Sea. T. Kearsey, R. Ellen, D. Millward and A. A. Monaghan Front cover View of foreshore at Spittal, Berwick-upon-Tweed. Rocks in Contributor the foreshore belong to the Scremerston Coal Member, N. Smith equivalent to the Scremerston Formation offshore. P662948 ©BGS NERC Bibliographical reference KEARSEY, T, ELLEN, R, MILLWARD, D. AND MONAGHAN, A.A. 2015. Devonian and Carboniferous stratigraphical correlation and interpretation in the Central North Sea, Quadrants 25 – 44. British Geological Survey Commissioned Report, CR/15/117. 80pp. Copyright in materials derived from the British Geological Survey’s work is owned by the Natural Environment Research Council (NERC) and/or the authority that commissioned the work. You may not copy or adapt this publication without first obtaining permission. Contact the BGS Intellectual Property Rights Section, British Geological Survey, Keyworth, e-mail [email protected]. You may quote extracts of a reasonable length without prior permission, provided a full acknowledgement is given of the source of the extract. Maps and diagrams in this book use topography based on Ordnance Survey mapping. © NERC 2015. All rights reserved Keyworth, Nottingham British Geological Survey 2015 CR/15/117; Draft 0.1 Last modified: 2016/03/24 15:19 BRITISH GEOLOGICAL SURVEY The full range of our publications is available from BGS shops at British Geological Survey offices Nottingham, Edinburgh, London and Cardiff (Welsh publications only) see contact details below or shop online at www.geologyshop.com BGS Central Enquiries Desk Tel 0115 936 3143 Fax 0115 936 3276 The London Information Office also maintains a reference collection of BGS publications, including maps, for consultation. email [email protected] We publish an annual catalogue of our maps and other publications; this catalogue is available online or from any of the Environmental Science Centre, Keyworth, Nottingham BGS shops. 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Natural History Museum, Cromwell Road, London SW7 5BD Tel 020 7589 4090 Fax 020 7584 8270 Tel 020 7942 5344/45 email [email protected] Columbus House, Greenmeadow Springs, Tongwynlais, Cardiff CF15 7NE Tel 029 2052 1962 Fax 029 2052 1963 Maclean Building, Crowmarsh Gifford, Wallingford OX10 8BB Tel 01491 838800 Fax 01491 692345 Geological Survey of Northern Ireland, Colby House, Stranmillis Court, Belfast BT9 5BF Tel 028 9038 8462 Fax 028 9038 8461 www.bgs.ac.uk/gsni/ Parent Body Natural Environment Research Council, Polaris House, North Star Avenue, Swindon SN2 1EU Tel 01793 411500 Fax 01793 411501 www.nerc.ac.uk Website www.bgs.ac.uk Shop online at www.geologyshop.com CR/15/117; Draft 0.1 Last modified: 2016/03/24 15:19 This report is for information only it does not constitute legal, technical or professional advice. To the fullest extent permitted by law The British Geological Survey shall not be liable for any direct indirect or consequential loss or damage of any nature however caused which may result from reliance upon or use of any information contained in this report. Requests and enquiries should be addressed to Alison Monaghan, 21CXRM Palaeozoic Project Leader, [email protected]. Foreword This report is a published product of the 21st Century Exploration Road Map (21CXRM) Palaeozoic project. This joint industry-Government-BGS project comprised a regional petroleum systems analysis of the offshore Devonian and Carboniferous in the North Sea and Irish Sea. Acknowledgements A large number of individuals involved with the 21CXRM have contributed to the project. We would particularly like to thank Mark Fellgett, Sandy Henderson and Mark Kassyk for well data gathering and preparation and Mike Sankey for adding existing well picks to ODM™ . We acknowledge Senergy LR for use of ODM ™ under license. P. Osterloff (Shell), T. Parsons (Centrica) and C. Mathieu (OGA) are thanked for technical review of this report and associated digital data. Contents Foreword ........................................................................................................................................ 5 Acknowledgements ........................................................................................................................ 5 Contents .......................................................................................................................................... 5 Summary ........................................................................................................................................ 9 1 Introduction .......................................................................................................................... 10 1.1 Data and workflow ....................................................................................................... 16 1.2 Accompanying Data Sets .............................................................................................. 16 2 Devonian Strata .................................................................................................................... 17 2.1 Kyle Group ................................................................................................................... 17 2.2 Buchan Formation ........................................................................................................ 19 2.3 Tayport Formation ........................................................................................................ 21 3 Carboniferous Strata ........................................................................................................... 23 3.1 Cementstone Formation ................................................................................................ 23 5 CR/15/117; Draft 0.1 Last modified: 2016/03/24 15:19 3.2 Fell Sandstone Formation ............................................................................................. 25 3.3 Scremerston and Firth Coal Formations ....................................................................... 27 3.4 Yoredale Formation ...................................................................................................... 29 3.5 Cleveland Group ........................................................................................................... 31 3.6 Millstone Grit Formation .............................................................................................. 37 3.7 Conybeare (Coal Measures) Group .............................................................................. 39 3.8 Ketch Formation ........................................................................................................... 45 3.9 Upper Carboniferous to Lower Permian strata of the Flora Field ................................ 47 3.10 Intrusive Igneous Rocks ............................................................................................ 50 4 Correlation Panels ................................................................................................................ 52 5 Palaeogeography .................................................................................................................. 62 5.1 Tournaisian – Chadian (CM-Pu (early) palynozoneS) ................................................. 63 5.2 Arundian (Late Pu – early TS palynozones) ................................................................ 65 5.3 Late Asbian (NM palynozone) ..................................................................................... 67 5.4 Brigantian (VF palynozone) ......................................................................................... 69 5.5 Pendleian (NC pars palynozone) .................................................................................. 71 5.6 Kinderscoutian (early KV palynozone) ........................................................................ 73 6 References ............................................................................................................................. 75 Appendix 1 ................................................................................................................................... 79 FIGURES Figure 1 Location of wells and correlation panels that penetrate the pre-Permian strata and the subset which were studied in detail for this stratigraphical study.