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Note on the Fishes of the Ruabon Marl

Published online by Cambridge University Press:  01 May 2009

H. H. Simpson
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Extract

In Denbighshire the Marl follows the productive Middle Coal Measures and consists of from 400–1,100 feet of red, green, and variegated marls with occasional sandstones and towards the top thin Spirorbis limestone and other limestones, with here and there films of coal. It corresponds with the Etruria Marl of the North Staffordshire Coalfield.

Type
Original Articles
Information
Geological Magazine , Volume 71 , Issue 6 , June 1934 , pp. 280 - 281
Copyright
Copyright © Cambridge University Press 1934

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References

page 280 note 1 “The Geology of the Country around Wrexham,” part ii, p. 103, Mem. Geol. Surv., 1928.Google Scholar

page 281 note 1 The Building of the British Isles, Jukes-Browne, p. 176.Google Scholar