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{{Short description|Geological group in Great Britain}} |
{{Short description|Geological group in Great Britain}} |
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{{Use dmy dates|date=April 2022}} |
{{Use dmy dates|date=April 2022}} |
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The '''Warwickshire Group''' is a [[lithostratigraphy|lithostratigraphic]] unit of rock [[stratum|strata]] defined within the British [[Carboniferous]] [[system (stratigraphy)|system]]. Within the [[Pennine Basin]] it overlies (i.e. postdates) the [[Coal Measures Group]] and is deemed to be of late [[Westphalian (stage)|Westphalian]] and [[Stephanian (stage)|Stephanian]] age. In the [[South Wales Coalfield]] it consists of the [[Pennant Measures|Pennant Sandstone Formation]] and overlying [[Grovesend |
The '''Warwickshire Group''' is a [[lithostratigraphy|lithostratigraphic]] unit of rock [[stratum|strata]] defined within the British [[Carboniferous]] [[system (stratigraphy)|system]]. Within the [[Pennine Basin]] it overlies (i.e. postdates) the [[Coal Measures Group]] and is deemed to be of late [[Westphalian (stage)|Westphalian]] and [[Stephanian (stage)|Stephanian]] age. In the [[South Wales Coalfield]] it consists of the [[Pennant Measures|Pennant Sandstone Formation]] and overlying [[Grovesend]] Formation. It contains the youngest Carboniferous rocks in Britain.<ref>Aitkenhead, N. et al. 2002. ''British Regional Geology: The Pennines and adjacent areas (4th Edn)'', (Keyworth, Notts, British Geological Survey)</ref> |
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The name Warwickshire Group is a relatively recent one, replacing a variety of earlier names for the succession of coal-barren red-beds such as Barren Coal Measures and Red Measures which overlie the productive coal measures. It is derived from the [[Warwickshire Coalfield]] where they achieve their thickest development.<ref>Powell, J.H. et al. 2000. ''Stratigraphical framework for Westphalian to [[Cisuralian|early Permian]] red-bed successions of the Pennine Basin'', British Geological Survey Research Report, RR/00/01</ref> |
The name Warwickshire Group is a relatively recent one, replacing a variety of earlier names for the succession of coal-barren red-beds such as Barren Coal Measures and Red Measures which overlie the productive coal measures. It is derived from the [[Warwickshire Coalfield]] where they achieve their thickest development.<ref>Powell, J.H. et al. 2000. ''Stratigraphical framework for Westphalian to [[Cisuralian|early Permian]] red-bed successions of the Pennine Basin'', British Geological Survey Research Report, RR/00/01</ref> |
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