Somerset (Comprising Somerset, North Somerset, Bath and North East Somerset, the City of Bristol, and Part of Exmoor National Park)

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Somerset (Comprising Somerset, North Somerset, Bath and North East Somerset, the City of Bristol, and Part of Exmoor National Park) Mineral Resource Information in Support of National, Regional and Local Planning: Somerset (comprising Somerset, North Somerset, Bath and North East Somerset, the City of Bristol, and part of Exmoor National Park). Commissioned Report CR/04/214N BRITISH GEOLOGICAL SURVEY COMMISSIONED REPORT CR/04/214N Mineral Resource Information in Support of National, Regional and Local Planning: Somerset (comprising Somerset, North Somerset, Bath and North East Somerset, the City of Bristol, and part of Exmoor National Park). A J Benham, D J Harrison, A J Bloodworth, S F The National Grid and other Hobbs, D G Cameron, N A Spencer, D J Evans, Ordnance Survey data are used with the permission of the G K Lott, and D E Highley. Controller of Her Majesty’s Stationery Office. Ordnance Survey licence number GD 272191/2005 Key words Somerset, Mineral Resources, Mineral Planning Front cover Battscombe Quarry, near Frome, Somerset Bibliographical reference BENHAM, A J, HARRISON, D J, BLOODWORTH, A J , Hobbs, S F CAMERON, D G, SPENCER, N A, EVANS, D J, LOTT, G K, AND HIGHLEY, D E. 2005. Mineral Resource Information in Support of National, Regional and Local Planning: Somerset (comprising Somerset, North Somerset, Bath and North East Somerset, the City of Bristol, and part of Exmoor National Park). British Geological Survey Commissioned Report, CR/04/214N. 23pp © Crown Copyright 2005 Keyworth, Nottingham British Geological Survey 2005 BRITISH GEOLOGICAL SURVEY The full range of Survey publications is available from the BGS Keyworth, Nottingham NG12 5GG Sales Desks at Nottingham and Edinburgh; see contact details 0115-936 3241 Fax 0115-936 3488 below or shop online at www.thebgs.co.uk e-mail: [email protected] The London Information Office maintains a reference collection www.bgs.ac.uk of BGS publications including maps for consultation. Shop online at: www.thebgs.co.uk The Survey publishes an annual catalogue of its maps and other publications; this catalogue is available from any of the BGS Sales Murchison House, West Mains Road, Edinburgh EH9 3LA Desks. 0131-667 1000 Fax 0131-668 2683 The British Geological Survey carries out the geological survey of e-mail: [email protected] Great Britain and Northern Ireland (the latter as an agency service for the government of Northern Ireland), and of the London Information Office at the Natural History Museum surrounding continental shelf, as well as its basic research (Earth Galleries), Exhibition Road, South Kensington, London projects. It also undertakes programmes of British technical aid in SW7 2DE geology in developing countries as arranged by the Department for International Development and other agencies. 020-7589 4090 Fax 020-7584 8270 020-7942 5344/45 email: [email protected] The British Geological Survey is a component body of the Natural Environment Research Council. Forde House, Park Five Business Centre, Harrier Way, Sowton, Exeter, Devon EX2 7HU Published for the Office of the Deputy Prime Minister. 01392-445271 Fax 01392-445371 © Queen's Printer and Controller of Her Majesty's Stationery Office 2005. Geological Survey of Northern Ireland, 20 College Gardens, Belfast BT9 6BS This publication (excluding logos) may be reproduced free of charge in any format or medium for research, private study or 028-9066 6595 Fax 028-9066 2835 circulation within an organisation. This is subject to it being reproduced accurately and not used in a misleading context. The Maclean Building, Crowmarsh Gifford, Wallingford, material must be acknowledged as Crown Copyright and the title Oxfordshire OX10 8BB of the publication specified. 01491-838800 Fax 01491-692345 Applications for reproduction should be made in writing to: The Copyright Unit, Her Majesty's Stationery Office, St Clements House, 1-16 Colgate, Norwich NR3 1BQ. Fax 01603 723000 or e- Parent Body mail: mailto:[email protected] Natural Environment Research Council, Polaris House, North Star Avenue, Swindon, Wiltshire SN2 1EU 01793-411500 Fax 01793-411501 www.nerc.ac.uk Contents 1 Introduction............................................................................................................................ 1 1.1 Resources and reserves ................................................................................................ 1 1.2 Environmental designations ........................................................................................ 2 2 Peat .......................................................................................................................................... 3 3 Sand and gravel...................................................................................................................... 3 3.1 Superficial deposits....................................................................................................... 4 3.1.1 River Terrace Deposits................................................................................................4 3.1.2 Sub-alluvial Gravel.....................................................................................................4 3.2 Bedrock sand deposits.................................................................................................. 4 3.2.1 Budleigh Salterton Pebble Beds Formation ................................................................4 4 Crushed rock aggregate......................................................................................................... 5 4.1 Limestone ...................................................................................................................... 5 4.2 Igneous Rock................................................................................................................. 7 4.3 Sandstone.......................................................................................................................7 5 Building stone ......................................................................................................................... 9 6 Fuller’s Earth ....................................................................................................................... 11 7 Chalk ..................................................................................................................................... 12 8 Hydrocarbons ....................................................................................................................... 12 8.1 Conventional oil and gas ............................................................................................ 12 8.2 Abandoned Mine Methane (AMM), Coal Mine Methane (CMM) and CoalBed Methane (CBM) potential.................................................................................................... 12 8.2.1 Abandoned Mine Methane (AMM) ..........................................................................13 8.2.2 Coal Mine Methane (CMM) .....................................................................................13 8.2.3 Coalbed Methane (CBM)..........................................................................................13 9 Coal........................................................................................................................................ 13 10 Other minerals...................................................................................................................... 13 10.1 Evaporite Minerals..................................................................................................... 13 10.1.1 Celestite..................................................................................................................13 10.1.2 Halite......................................................................................................................14 10.1.3 Gypsum..................................................................................................................14 10.2 Ironstone...................................................................................................................... 14 11 Aims and limitations ............................................................................................................14 12 Planning permissions for the extraction of minerals ........................................................ 15 Appendix ...................................................................................................................................... 16 Topographic base ................................................................................................................. 16 i Constraint information........................................................................................................ 16 English Nature ........................................................................................................................16 English Heritage .....................................................................................................................16 Countryside Agency ...............................................................................................................17 ii 1 Introduction This report is one of a series prepared by the British Geological Survey for various administrative areas in England for the Office of the Deputy Prime Minister’s research project Mineral Resource Information in Support of National, Regional and Local Planning. The accompanying map relates to the county of Somerset, comprising Somerset, North Somerset, Bath and North East Somerset, and the City of Bristol, and delineates the mineral resources of current, or potential,
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