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V.—Notes on Geological Sections, within Forty Miles Radius of Southport1

Published online by Cambridge University Press:  01 May 2009

Charles E. De Rance
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Extract

Striking a radius of 40 miles from Southport, the line will be seen to intersect the sea-coast near the Silurian districts of Ulverstone in North Lancashire, and Colwyn Bay in North Wales. The succession in both cases is very similar, Denbighshire Grits and Flags of the one area corresponding in time to the Coniston Grits and Flags of the other; and just as the Silurians of the Lake District are overlaid by a fringe of Carboniferous Limestone, so the Silurians of Diganwy are overlaid by the Carboniferous Limestone of the Great and Little Ormes Head. Laid upon a floor of Silurian rocks, the Carboniferous Limestone may be regarded as extending continuously under the Irish Sea, and underlying the various Carboniferous and Triassic rocks now occupying Lancashire.

Type
Original Articles
Information
Geological Magazine , Volume 10 , Issue 11 , November 1883 , pp. 500 - 507
Copyright
Copyright © Cambridge University Press 1883

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References

page 500 note 2 Detail observation on the district will be found in the following Memoris of the Geological Survey:—The Burnley Coal–field: The Country Around Wigan; The Country Around Bolton; Superfical Deposits of South–west Lancashire; The Country Between Liverpool and Southport: The Country Around Southport, Lytham, and Southshore; The Country Around Blackpool and Fleetwood; and in the Maps which these Memories illustrate.

page 503 note 1 The word “ Mine ” is used in parts of Lancashire, instead of “ Coal,” for certain seams.

page 505 note 1 Mem. Geol. Surv. Expl. of Sheet 90, § 9.