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VI.—The Carboniferous Succession in the Forest of Dean Coalfield

Published online by Cambridge University Press:  01 May 2009

T. Franklin Sibly
Affiliation:
Lecturer on Geology in King's College, London.

Extract

The following preliminary account is presented as the result of several weeks of field-work on the northern and eastern margins of the Forest of Dean Coalfield, carried out partly in 1910 and partly in the present year. The area which I have examined lies almost wholly within Sheet 43 S.E. of the 1 inch Geological Survey Map (Old Series), but extends a short distance into Sheet 43 S.W. In portions of this area, the Lower Carboniferous rocks have been studied in detail and mapped. The Coal Measures, however, have as yet been examined only in their relation to the Lower Carboniferous strata. The present communication is, therefore, confined to a demonstration of the important unconformity which exists between the Coal Measures and the Lower Carboniferous rocks, together with a brief description of the latter. I am continuing my investigations, and I hope to give at some future date a more comprehensive account of the geology of the coalfield. In the meantime, the following outline may be of interest.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1912

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References

page 418 note 1On the Lower Carboniferous Rocks of the Forest of Dean, as represented in Typical Sections at Drybrook”: Q. J. G. S., vol. xxxix, p. 211, 1883Google Scholar. “On the Structure and Organisms of the Lower Limestone Shales, Carboniferous Limestone, and Upper Limestones of the Forest of Dean”: GEOL. MAG., Dec. III, Vol. III, p. 530, 1886Google Scholar. “On the Lower Divisions of the Carboniferous Kocks in the Forest of Dean”: Proc. Geol. Assoc, vol. x, p. 510, 18871888Google Scholar.

page 418 note 2 Q.J.G.S., vol. lxi, pp. 251–2, 1905Google Scholar.

page 420 note 1 Q.J.G.S., vol. lxi, p. 252, 1905Google Scholar.

page 420 note 2 A. Vaughan, ibid., p. 251.

page 420 note 3 Q.J.G.S., vol. xxxix, p. 215, 1883Google Scholar.

page 420 note 4 Q.J.G.S., vol. lxi, p. 252, 1905Google Scholar.

page 420 note 5 Arber, E. A. Newell, “On the Fossil Flora of the Forest of Dean Coalfield (Gloucestershire), and the Relationships of the Coalfields of the West of England and South Wales”: Phil. Trans. Roy, . Soc, vol. ccii, B, pp. 233–81, 1912Google Scholar.

page 421 note 1 Trans. Geol. Soc, ser. II, vol. i, p. 286, 1824Google Scholar.

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page 421 note 4 See n. 5, p. 420.