A lithostratigraphical framework for the Carboniferous successions ...

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BRITISH GEOLOGICAL SURVEY The full range of our publications is available from BGS shops at Nottingham, Edinburgh, London and Cardiff (Welsh publications only) see contact details below or shop online at www.geologyshop.com The London Information Office also maintains a reference collection of BGS publications, including maps, for consultation. We publish an annual catalogue of our maps and other publications; this catalogue is available online or from any of the BGS shops. The British Geological Survey carries out the geological survey of Great Britain and Northern Ireland (the latter as an agency service for the government of Northern Ireland), and of the surrounding continental shelf, as well as basic research projects. It also undertakes programmes of technical aid in geology in developing countries. The British Geological Survey is a component body of the Natural Environment Research Council. British Geological Survey offices BGS Central Enquiries Desk Tel 0115 936 3143 Fax 0115 936 3276 email enquires@bgs.ac.uk Kingsley Dunham Centre, Keyworth, Nottingham NG12 5GG Tel 0115 936 3241 Fax 0115 936 3488 email sales@bgs.ac.uk Murchison House, West Mains Road, Edinburgh EH9 3LA Tel 0131 667 1000 Fax 0131 668 2683 email scotsales@bgs.ac.uk Natural History Museum, Cromwell Road, London SW7 5BD Tel 0207 589 4090 Fax 0207 584 8270 Tel 0207 942 5344/45 email bgslondon@bgs.ac.uk 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
Foreword This report is the published product of a study by the British Geological Survey (BGS) Stratigraphical Framework Committee (SFC) for the Carboniferous of Southern Great Britain. The report provides a summary of a lithostratigraphical scheme proposed by the SFC that aims to rationalise group and formation nomenclature for the Carboniferous of the entire onshore area of southern Great Britain. The study draws upon an overview report for the Carboniferous of Great Britain (Waters et al, 2007). The overview report identifies a group framework based upon the identification of eight major lithofacies associations iii across the UK. This framework report provides further, more detailed descriptions of group and formation nomenclature, specifically for the onshore area of southern Great Britain (essentially south of the Craven Fault System). The report covers central, southern and south-west England and Wales. The report provides criteria for rationalisation of existing nomenclature where necessary. Existing names are used wherever appropriate, although where formation names have not previously existed, the report proposes a new nomenclature and provides a full description. This framework report is produced in conjunction with a framework report for northern Great Britain. British Geological Survey Research Report RR/09/01
Page 1 and 2: A lithostratigraphical framework fo
Page 3: The National Grid and other Ordnanc
Page 7 and 8: Contents Navigating the document (f
Page 9: Summary The Stratigraphy Committee
Page 12 and 13: SOUTHERN UPLAND FAULT IRISH SEA N L
Page 14 and 15: into a deep marine Culm Basin assoc
Page 16 and 17: 54°N Volcanic rocks Culm Supergrou
Page 18 and 19: Table 3 Summary of the chronostrati
Page 20 and 21: Table 4 Westphalian chronostratigra
Page 22 and 23: present within areas of recent geol
Page 24 and 25: British Geological Survey Research
Page 26 and 27: Palaeospiroplectammina mellina, End
Page 28 and 29: PERMIAN 100 DUCKMANTIAN BOLSOVIAN L
Page 30 and 31: eds. The upper part of the formatio
Page 32 and 33: British Geological Survey Research
Page 34 and 35: Thickness Up to 90 m Distribution P
Page 36 and 37: calcisiltites of the Clitheroe Lime
Page 38 and 39: Bowland Basin, and to the south-eas
Page 40 and 41: Raven’s Tor, Dovedale [SK 1412 53
Page 42 and 43: Reference sections Woo Dale Borehol
Page 44 and 45: in regional correlation of the succ
Page 46 and 47: Age Brigantian 4.5.8.1 upper miller
Page 48 and 49: ing order 6.90, 0.32 and 4.93 m thi
Page 50 and 51: at the eastern end of an elongate m
Page 52 and 53: dominated shelf environment (Carney
Page 54 and 55:
Genetic interpretation There are co
Page 56 and 57:
on, and overstepping, Tournaisian l
Page 58 and 59:
PERMIAN MARSDENIAN Depth in metres
Page 60 and 61:
Lower and upper boundaries The base
Page 62 and 63:
Llangollen [SJ 23 45], and near Osw
Page 64 and 65:
Type section The lowermost exposed
Page 66 and 67:
Type section Stream section at Whit
Page 68 and 69:
Limestone in the Middop Anticline (
Page 70 and 71:
Reference sections Composite sectio
Page 72 and 73:
Man, lavas, volcaniclastic debris f
Page 74 and 75:
Age Late Asbian to early Brigantian
Page 76 and 77:
Age Brigantian 4.7.7 Bowland Shale
Page 78 and 79:
Distribution Does not crop out. Pro
Page 80 and 81:
intertonguing with the Cefn-y-fedw
Page 82 and 83:
Thickness From about 200 m at north
Page 84 and 85:
the marine band is absent from the
Page 86 and 87:
Biostratigraphical characterisation
Page 88 and 89:
Thickness About 55 to 215 m Distrib
Page 90 and 91:
WBH Isopachs upon the Rossendale Fo
Page 92 and 93:
ASTURIAN BOLSOVIAN Phillipsi Upper
Page 94 and 95:
is taken at the top of the dark gre
Page 96 and 97:
Age Bolsovian 4.9.3.6 hemsWorth mem
Page 98 and 99:
Age Westphalian 4.10.2 Halesowen Fo
Page 100 and 101:
name for part of the Silurian in th
Page 102 and 103:
Page 104 and 105:
5 South Wales-Bristol The area sout
Page 106 and 107:
British Geological Survey Research
Page 108 and 109:
et al., 2002). The undivided Avon G
Page 110 and 111:
Lower and upper boundaries The base
Page 112 and 113:
Genetic interpretation The formatio
Page 114 and 115:
Lithology Dark grey, thin- to mediu
Page 116 and 117:
complex of ooidal barrier shoal (Co
Page 118 and 119:
5.2.14 Oxwich Head Limestone Format
Page 120 and 121:
the Abercriban Oolite Subgroup and
Page 122 and 123:
Lithology Massive, medium-grained,
Page 124 and 125:
Lithology A heterolithic, lenticula
Page 126 and 127:
Regional correlation Same age as, a
Page 128 and 129:
Age Tournaisian 5.2.27 Vallis Limes
Page 130 and 131:
1977). These deposits were subseque
Page 132 and 133:
Type section North side of Cheddar
Page 134 and 135:
the type section of the Kenfig Bore
Page 136 and 137:
Page 138 and 139:
(Stubblefield and Trotter, 1957), t
Page 140 and 141:
a WARWICKSHIRE GROUP SOUTH WALES CO
Page 142 and 143:
The Subcrenatum Marine Band is not
Page 144 and 145:
Valley, south Wales: exposes 44 m o
Page 146 and 147:
Mangotsfield members, maintaining t
Page 148 and 149:
Reference section Hursley Hill Bore
Page 150 and 151:
litharenite petrography of the sand
Page 152 and 153:
Reference section Steeple Aston Bor
Page 154 and 155:
6 South-west England To the south o
Page 156 and 157:
SOUTH DEVON BASIN TAVY BASIN RUSEY
Page 158 and 159:
laterally into the numerous middle/
Page 160 and 161:
pale to dark grey, massive to plana
Page 162 and 163:
entire member, 7 m thick, is seen t
Page 164 and 165:
Page 166 and 167:
have been obtained from the ?underl
Page 168 and 169:
formation intertongues with the Buc
Page 170 and 171:
Age ?Famennian to Visean 6.6 CHUDLE
Page 172 and 173:
Thickness Unknown, but a minimum th
Page 174 and 175:
Lithology Thin-bedded mudstones, si
Page 176 and 177:
BriDge, D m, CarNey, J N C, laWley,
Page 178 and 179:
falCoN, N l, and keNt, p e. 1960. G
Page 180 and 181:
lovell, r W W. 1978. The sedimentol
Page 182 and 183:
elations of its older stratified de
Page 184 and 185:
Waters, C N, glover, B W, and poWel
Page 186 and 187:
Supergroup Group Sub-group Formatio
Page 188 and 189:
Supergroup Group Formation Member C
Page 190 and 191:
Group Formation Member Tamar (TAMA)
Page 192 and 193:
Appendix 2 Redundant lithostratigra
Page 194:
ACH Mount Ararat Chert Formation Co
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