Landslides of the Area Around Chesterfield, Geological Sheet 112
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Landslides of the area around Chesterfield, Geological Sheet 112 Land Use and Development Open Report OR/09/022 BRITISH GEOLOGICAL SURVEY LAND USE AND DEVELOPMENT OPEN REPORT OR/09/022 Landslides of the area around The National Grid and other Ordnance Survey data are used with the permission of the Chesterfield, Geological Sheet Controller of Her Majesty’s Stationery Office. Licence No: 100017897/ 2009. 112 Keywords Landslide, Chesterfield. CVL Pennington, HM Evans and C Foster National Grid Reference SW corner 425000,355000 Centre point 440000,365000 NE corner 455000,375000 Map Sheet 112, 1:50 000 scale, Chesterfield Front cover Fallinge Edge, Derbyshire. Photograph taken from Beeley Hilltop [SK273689] facing SSW. Bibliographical reference PENNINGTON, C.V.L., EVANS, H. M. AND FOSTER, C.. 2009. Landslides of the area around Chesterfield, Geological Sheet 112. British Geological Survey Open Report, OR/09/022. 23pp. 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 2009. All rights reserved Keyworth, Nottingham British Geological Survey 2009 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 Kingsley Dunham Centre, Keyworth, Nottingham NG12 5GG 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 Forde House, Park Five Business Centre, Harrier Way, Sowton EX2 7HU Tel 01392 445271 Fax 01392 445371 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 OR/09/022 Contents Contents ........................................................................................................................................... i Summary ........................................................................................................................................ ii 1 Introduction ............................................................................................................................ 1 2 Study area ............................................................................................................................... 1 3 Mining and quarrying ............................................................................................................ 3 4 Geology .................................................................................................................................... 3 4.1 Bedrock Geology ............................................................................................................ 3 4.2 Superficial Geology ........................................................................................................ 8 5 Landslide Distribution ........................................................................................................... 9 6 Landslide Analysis ............................................................................................................... 10 6.1 Geology and landslide frequency ................................................................................. 10 6.2 Style and mechanism of landsliding ............................................................................. 11 6.3 Landslide age and activity ............................................................................................ 13 6.4 Landsliding and slope aspect ........................................................................................ 14 7 Conclusions ........................................................................................................................... 15 References .................................................................................................................................... 16 Appendix 1 ................................................................................................................................... 17 FIGURES Figure 1 Chesterfield Sheet 112 location ........................................................................................ 2 Figure 2 Sketch-map showing the general geological relations of the district (taken from Smith et al., 1967) ............................................................................................................................... 2 Figure 3 Simplified geology (bedrock) map of the Chesterfield District, Matlock and Mansfield district (extract from 3rd Ed. Solid 1:625 000 scale Geological Map of the United Kingdom [south] 1979) ............................................................................................................................. 5 Figure 4 Simplified superficial geological map .............................................................................. 8 Figure 5 Distribution of landslides on the Chesterfield sheet ......................................................... 9 Figure 6 Frequency of 111 landslides related to bedrock stratigraphy ......................................... 10 Figure 7 Small degraded rotational landslide at SK257733 observed in the Namurian geology. Stone wall highlights the morphology. ................................................................................... 11 Figure 8 Rotational landslide blocks at Starkholmes (SK299582). .............................................. 12 Figure 9 Degraded landslide features at Wood End, Cromford (SK308570). .............................. 12 Figure 10 Shallow landslide near Station Quarry, Matlock (SK 297580). ................................... 13 Figure 11 Distribution of landslides with respect to bedrock geology ......................................... 14 i OR/09/022 Figure 12 Rose diagram to show distribution of the 111 landslides according to slope aspect .... 15 TABLES Table 1 . Simplified stratigraphy of the Chesterfield, Matlock and Mansfield district (taken from Cheney, 2007) ........................................................................................................................... 6 Summary This report provides a compilation of landslide information as part of the 1:10 000 scale re- survey of the Chesterfield, Matlock and Mansfield geological sheet (112). The resulting published products will comprise the landslides information of the revised 1:50 000 scale map. ii OR/09/022 1 Introduction The Chesterfield 1:50 000 geological map (Sheet 112) district lies at the eastern tip of the Pennines and includes areas of unspoilt landscape beauty in the west and more residential and industrial areas in the east. The district was first surveyed from 1904 to 1908 and then resurveyed from 1951 to 1956. As part of the resurveying of the sheet by the East Midlands Team, the Landslides Survey Team was approached to assist in the mapping of landslides in the region. This report provides a compilation of landslide information as part of the 1:10 000 scale re-survey of the Chesterfield, Matlock and Mansfield geological sheet (112). The resulting published products will comprise a revised 1:50 000 scale map. 2 Study area The district covered by the Chesterfield 1:50 000 scale Geological Sheet 112 (Figure 1) lies chiefly in Derbyshire, but extends east into Nottinghamshire; the greater part falls within the East Midlands Coalfield (Figure 2). The sheet includes Chesterfield in the north, and extends to Matlock in the south-west and the towns of Mansfield, Sutton in Ashfield and Kirkby in Ashfield in the south-east. The district is rural in nature (moorland and hill pasture), particularly in the