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Four “Felstone” Intrusions in Central Berwickshire

Published online by Cambridge University Press:  01 May 2009

John Irving
Affiliation:
Trinity College, Cambridge, Carnegie Research Fellow.

Extract

The three masses of Dirrington Great Law, Dirrington Little Law, and Blacksmill Hill consist of riebeckite felsite, closely allied to the rock of the neighbouring Eildon Hills and most probably contemporaneous with it, i.e. they are of a Carboniferous age. They may represent the denuded remains of a laccolith which has been intruded into upper Old Red Sandstone conglomerates. The fourth mass forming Kyleshill is an orthophyre, with which is associated an andesite. The relations of these two rocks are obscure, and they may, or may not be, of the same age as the other three masses.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1930

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References

page 529 note 1 The Geology of East Lothian,” Memoir Geol. Survey, 1866, p. 26.Google Scholar

page 529 note 2 The Geology of East Lothian,” Memoir Geol. Survey, 1910, p. 23.Google Scholar

page 529 note 3 Ancient Volcanoes of Great Britain, vol. i, pp. 290–1.Google Scholar

page 530 note 1 A Geological Survey of Berwickshire,” Trans. of the Highland and Agricultural Soc. of Scotland, 1837, vol. xi, pp. 171253.Google Scholar

page 535 note 1 The Geology of Edinburgh Dist.,” Mem. Geol. Survey, pp. 3741.Google Scholar

page 535 note 2 McRobert, Rachael Workman, “Acid and Intermediate Intrusions and Associated Ash Necks in the Neighbourhood of Melrose,” Quart. Journal Geol. Soc., vol. lxx, 1914, pp. 303–14, esp. p. 308.CrossRefGoogle Scholar

page 538 note 1 The Geol. of Edinburgh and District,” Memoir Geol. Survey of Scotland, 1910, pp. 3741.Google Scholar

page 538 note 2 Op. cit., 308–9.

page 538 note 3 Op. cit., p. 291.

page 539 note 1 Op. cit., pp. 307–8.

page 539 note 2 Mem. Geol. Survey Edinburgh District, 1910, p. 39.Google Scholar

page 540 note 1 Phillips, F. Coles, Geol. Mag., Vol. LXIII, 1926, p. 75.Google Scholar

page 540 note 2 (Described) Teall, J. J., Mineralogical Magazine, vol. ix, pp. 219–22.Google Scholar