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The Carboniferous Limestone Series of West Cumberland

Published online by Cambridge University Press:  01 May 2009

Charles Edmonds
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Extract

The area under consideration extends from the mining town ot Egremont to Scalesmoor Farm in the parish of Lamplugh in West Cumberland, and comprises a tract of country 9 miles in length and rather less than 3 miles in width, running from S.S.W. to N.N.E. It forms the south-eastern margin of the Whitehaven Coalfield, and is the western portion of the “collar” of Lower Carboniferous rocks almost surrounding the older Palæozoic rocks of which the Lake District proper is composed. The area consists in the main of fahly continuous outcrops, but is much disturbed by faulting. In the unravelling of the tectonics of the district, however, the difficulty caused by excessive faulting is counterbalanced by the multiplicity of the borings that have been made during the exploration and development of the valuable haematite deposits associated with the limestones. In no single instance is there an exposure giving a complete section of the sequence, yet with the help of the journals of the “bores” every one of the exposures mentioned in this paper can be placed at its exact horizon with great accuracy.

Type
Original Articles
Information
Geological Magazine , Volume 59 , Issue 2 , February 1922 , pp. 74 - 83
Copyright
Copyright © Cambridge University Press 1922

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References

page 76 note 1 Sheet 101 S.W. (New Series, Sheet 28)Google Scholar

page 76 note 2 Special Reports, vol. viii,—Iron Ores: Hæmatites of West Cumberland, etc., 1919.Google Scholar

page 76 note 3 Proc. Manch. Lit. and Phil. Soc.; GEOL. MAG., Vol. VI, p. 141 (Abstract).Google Scholar

page 76 note 4 “The Carboniferous Rocks of Cumb. and N. Lanes or Furness”: Trans. N. of Eng. Inst. Min. and Mech. Eng., vol. xxxiv, 1885, p. 185.Google Scholar

page 76 note 5 “Notes on some of the Limestones of Cumb. and Westm.”: Trans, dumb, and Westm. Assoc., No. xvi, 1890–1891, p. 134.Google Scholar

page 79 note 1 The terms “calcite-mudstones” and “dolomite-mudstones” are used for rock-types similar to those described by Mr. Dixon (op. cit., pp. 516–17).Google Scholar

page 80 note 1 Attention has been drawn by Garwood and Reynolds to the importance of algae as rock builders of Carboniferous and other limestones.