Trawden Limestone Group

The Trawden Limestone Group is a lithostratigraphical term referring to the succession of limestone rock strata which occur in parts of Lancashire and neighbouring Yorkshire, northern England in the United Kingdom laid down within the Chadian to Brigantian sub-Stages of the Carboniferous Period.[1]

Trawden Limestone Group
Stratigraphic range: Chadian-Brigantian sub-stages
TypeGroup
Unit ofCarboniferous Limestone Supergroup
UnderliesBowland Shale Formation
OverliesRoddlesworth Formation
Thicknessup to 1055m
Lithology
Primarylimestone
Othermudstone, chert, dolomite
Location
Regionnorthern England
ExtentLancashire, Yorkshire
Type section
Named forTrawden

The Trawden Limestone Group is preceded (underlain) by the Roddlesworth Formation. It is succeeded (overlain) by the Bowland Shale Formation[2]

References

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  1. ^ "Trawden Limestone Group". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 6 August 2016.
  2. ^ British Geological Survey 1:625,000 scale geological map Bedrock geology: UK South (5th edn) BGS, Keyworth, Notts

See also

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Geology of Lancashire