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V.—On the Classification of the European Rocks known as Permian and Trias
Published online by Cambridge University Press: 01 May 2009
Extract
In the Midland Counties the rocks mapped as Permian are considered on all sides, if Permian at all, to belong to the Lower or Rothliegende series; we need not therefore stop to discuss them at any great length here. The chief authorities are Mr. Howell and the late Prof. Jukes. In Warwickshire the case is a simple one: there is, according to Mr. Howell, a general unconformity of the rocks called Permian with the Triassic strata which lie above them. In the Staffordshire area the case is somewhat different. After a careful perusal of Mr. Jukes's Memoir, I fail to find that his survey of the district enabled him to furnish any direct evidence of the unconformity between the Permians and the Trias, in the existence of which he expresses his belief in the text.
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References
page 219 note 1 Geology of the Warwickshire Coal-field, by Howell, H. H., a “Survey” Memoir.Google Scholar
page 219 note 2 Memoir on the South Staffordshire Coal-field, by Jukes, J. B., M.A., F.R.S.Google Scholar
page 219 note 3 Vide Q. J. G. S. vol. xxxiii. On the Relation of the Upper Carboniferous Strata of Shropshire and Derbyshire to the Rocks usually classed as Permian.Google Scholar
page 220 note 1 Though still recognized in Student's Elements (Lyell), it is rejected by SirRamsay, A. in his Manual of British Geology; vide p. 30.Google Scholar
page 220 note 2 Credner, , El. d. Geol. pp. 482, 483. See also pp. 473–477 of the same work for a good account of the eruptive rocks (‘Gesteineruptionen’) which intersect the Rothliegende of Germany.Google Scholar
page 221 note 1 Vide Geology of the Country around Nottingham, 2nd edition, 1880.Google Scholar
page 221 note 2 Vide Quart. Jonrn. Geol. Soc. for 12, 1876Google Scholar, The Permians of the N.E. of England; also paper by the same author on the South Scarle Section.