Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-07T20:20:19.068Z Has data issue: false hasContentIssue false

II.—Geology and Petrology of the Intrusions of the Kilsyth-Croy District, Dumbartonshire

Published online by Cambridge University Press:  01 May 2009

G. W. Tyrrell
Affiliation:
Assistant in Geology, Glasgow University

Extract

The group of intrusions of which this paper treats is a part of a series of intrusive rocks piercing the Carboniferous starta of the Midland Valley of Scotland. As a rule, they have forced their way into the Carboniferous Limestone Series in layers roughly parallel to the stratification. At the surface they stand out as rough, craggy hills, often of considerable elevation, rising abruptly out of the plain of the Carboniferous sediments, and frequently ending off in a vertical escarpment of bare rock. They generally confront, at a distance of 1 or 2 miles, the terraced escarpments of Lower Carboniferous lavas, which bound the Midland Valley on the north, west, and south-west.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1909

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 299 note 1 See Sheet 31 of Geological Survey of Scotland.

page 299 note 2 pp. 43–6.

page 299 note 3 Allport, S., Q.J.G.S., 1874, vol. xxx, p. 553.Google Scholar

page 300 note 1 T.R.S.E., 1879, vol. xxix, p. 505.Google Scholar

page 300 note 2 Q.J.G.S., 1892, vol. xlvii, proc. 105.Google Scholar

page 300 note 3 Vol. i, pp. 417–23, 446–61; ii, pp. 140–3, 155–8.

page 300 note 4 Brit. Petrog., 1888, p. 192.

page 300 note 5 Proc. Geol. Assoc., 1891–2, vol. xii, p. 242Google Scholar. with petrog. appendix by Goodchild, J. G.; also Q.J.G.S., 1895, vol. li, pp. 480–91.Google Scholar

page 300 note 6 T.R.S.E., 1905–6, vol. xlv, pt. i, p. 137.Google Scholar

page 300 note 7 Summ. Prog. Geol. surv., 1905, p. 124.

page 301 note 1 Ibid., 1906, p. 104.

page 302 note 1 Gilbert, , Geology of Henry Mountains, 1877, p. 19.Google Scholar

page 304 note 1 Ancient Volcanoes of Great Britain, 1897, vol. ii, p. 157.Google Scholar

page 304 note 2 Ancient Volcanoes, vol. i, p. 447.Google Scholar

page 304 note 3 Summ. Prog. Geol. Surv., 1904, p. 118.

page 304 note 4 Ibid., 1905, p. 124.

page 304 note 5 See Ancient Volcanoes, vol. ii, p. 158.Google Scholar

page 304 note 6 Ancient Volcanoes, vol. ii, p. 10.Google Scholar

page 305 note 1 Q.J.G.S., 1889, p. 209.

page 305 note 2 Q.J.G.S., 1884, vol. xl, pp. 209–47Google Scholar, and Brit. Petrog., 1888, p. 206.

page 305 note 3 See petrographical part of paper.

page 305 note 4 See Memoir on Cowal district, 1897, p. 147, and Summ. Prog. Geol. Surv., 1904–6, op. cit.

page 306 note 1 See Iddings, , Rock Minerals, 1906, p. 229.Google Scholar

page 306 note 2 Q.J.G.S., 1884, vol. xl, p. 648.Google Scholar

page 306 note 3 Q.J.G.S., 1908, vol. lxiv, p. 286.Google Scholar

page 307 note 1 Falconer, , T.R.S.E., vol. xlv, pt. i, p. 141.Google Scholar

page 307 note 2 Cf. Teall, on the Corstorphine rock, Brit. Petrog., 1888, p. 190.Google Scholar

page 308 note 1 Teall, , Brit. Petrog., 1888, p. 192.Google Scholar

page 308 note 2 Cf. Holland, , Q.J.G.S., 1897, vol. liii, p. 411.Google Scholar

page 308 note 3 Cf. Teall, , Q.J.G.S., 1884, vol. xl, p. 644.Google Scholar