Pennine Coal Measures Group

Pennine Coal Measures Group
Stratigraphic range: Langsettian-Westphalian
Type Group
Unit of Coal Measures Supergroup
Underlies Warwickshire Group etc
Thickness up to 1600m
Lithology
Primary mudstone, sandstone
Other siltstone, coal, seatearth
Location
Region northern England, English Midlands, north Wales
Extent across northern England, English Midlands, north Wales
Type section
Named for Pennine Hills

The Pennine Coal Measures Group is a lithostratigraphical term referring to the coal-bearing succession of rock strata which occur in the United Kingdom within the Westphalian Stage of the Carboniferous Period. In formal use, the term replaces the Coal Measures Group[1] as applied to the succession of coal-bearing strata within the Pennine Basin which includes all of the coalfields of northern England and the English Midlands. It includes the largely concealed Canonbie Coalfield of southern Scotland and the coalfields of northeast Wales and the minor Anglesey coalfield.

The term 'Productive Coal Measures was formerly used for this succession. The Group comprises the:

  • Pennine Upper Coal Measures Formation
  • Pennine Middle Coal Measures Formation
  • Pennine Lower Coal Measures Formation[2]

The Pennine Coal Measures Group is preceded (underlain) by the Millstone Grit Group which is of Namurian age. It is succeeded (overlain) by the Warwickshire Group which comprises a largely non-productive sequence of red beds.[3][4]

References

  1. ↑ http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=CM BGS Lexicon of named rock units
  2. ↑ http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=PLCM BGS Lexicon of named rock units: Lower Pennine Coal Measures Gp
  3. ↑ Powell, J.H. et al. 2000. Stratigraphical framework for Westphalian to early Permian red-bed successions of the Pennine Basin, British Geological Survey Research Report, RR/00/01
  4. ↑ British Geological Survey 1:625,000 scale geological map Bedrock geology: UK South (5th edn) BGS, Keyworth, Notts


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