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The Unconformable Base of the Coniston Limestone Series in the Lake District

Published online by Cambridge University Press:  01 May 2009

Extract

During the course of a recent excursion of the Cambridge Sedgwick Club to the Coniston District, under the guidance of Professor J. E. Marr, important evidence was obtained upon the relationship of the Coniston Limestone Series to the Borrowdale Volcanic Series. A visit was paid to the area south-west of Torver Beck, when, after Professor Marr had pointed out the marked difference between the strike of the Coniston Limestone and that of the underlying Borrowdale rocks at High Pike Haw, the actual strongly discordant junction was located by Professor O. T. Jones and the writer. This was found to be one of unconformity and not a fault, and was traced by the party for some distance.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1924

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References

page 163 note 1 Marr, , Geology of the Lake District, p. 37 and fig. 7.Google Scholar

page 163 note 2 A calcareous ash with fossils, “The Style End Grassing Beds,” was discovered years ago by Professors Harkness and Nicholson in the eastern part of the Lake District. It was also recognized by them near Millom (Quart. Journ. Geol. Soc., vol. xxxiii, 1877, p. 461).Google Scholar

page 164 note 1 The Structure of the Eastern Part of the Lake District,” Proc. Geol. Assoc., 1915, pp. 196201.Google Scholar

page 164 note 2 Op. cit., pp. 216–18;Google Scholar and The Older Palæozoic Succession of the Duddon Estuary (privately printed), 1913, pp. 1721.Google Scholar

page 164 note 3 The Geology of the Lake District, 1916, p. 35.Google Scholar

page 164 note 4 In discussion of a paper by Harkness and Nicholson, On the strata between the Borrowdale Series and the Coniston Flags”: Quart. Journ. Geol. Soc., vol. xxxiii, 1877, p. 483.Google Scholar

page 164 note 5 “On the Continuity and Breaks between the various Divisions of the Silurian Strata in the Lake District,”Geol. Mag., 1872, p. 44.Google Scholar

page 164 note 6 Geology of the Country around Kendal, Sedbergh, Bowness, and Tebay”: Mem. Geol. Surv., 1888, p. 8.Google Scholar

page 165 note 1 Edited, but no words or sentences altered. (Approx. date 1877–82.)

page 166 note 1 Described by Professor Marr as “Ashgill Shales”, since the above section was first drafted; Quart. Journ. Geol. Soc., vol. xxxiv, 1878, pp. 873–6.Google Scholar

page 167 note 1 Grubenmann, Die Kristallinen Schiefer, 1910.Google Scholar

page 167 note 2 Norsk. Qeol. Tidsskr., vi, 1920, pp. 143–94.Google Scholar