|
The Coal Measures Group is a lithostratigraphical term coined to refer to the coal-bearing succession of rock strata which occur in the United Kingdom within the Westphalian Stage of the Carboniferous Period. Other than in Northern Ireland the term is now obsolete in formal use〔http://www.bgs.ac.uk/Lexicon/lexicon.cfm?pub=CM BGS Lexicon of named rock units〕 and is replaced by the Pennine Coal Measures Group, Scottish Coal Measures Group and the South Wales Coal Measures Group for the three distinct depositional provinces of the British mainland. ==Pennine Coal Measures Group== Within the Pennine Basin 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.〔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〕 It comprises the: : * Pennine Upper Coal Measures Formation : * Pennine Middle Coal Measures Formation : * Pennine Lower Coal Measures Formation The 'Pennine Basin' includes all of the coalfields of northern England and the English Midlands together with the Canonbie Coalfield of southern Scotland and the coalfields of northeast Wales and Anglesey. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Coal Measures Group」の詳細全文を読む スポンサード リンク
|