Hostname: page-component-848d4c4894-2xdlg Total loading time: 0 Render date: 2024-07-04T06:26:15.127Z Has data issue: false hasContentIssue false
  • English
  • Français

VI.—On Variolite and other Tachylytes at Dunmore Head, Co. Down

Published online by Cambridge University Press:  01 May 2009

Grenville A. J. Cole
Grenville A. J. Cole
Affiliation:
Professor of Geology in the Royal College of Science for Ireland.
Get access Rights & Permissions [Opens in a new window]

Extract

While examining the dykes along the coast of Mourne in the company of Mr. R. Welch, I came across an additional example of intrusive variolite, the occurrence of which seems worth recording. The mass is,inthis case, a thin one, about 20 centimetresinwidth, narrowing and dying out as it is traced northwards; it runs in a somewhat sinuous course along the strike of the uptilted strata. Every other dyke that I have seen upon this richly favoured coast cuts across the Ordovician beds, and the present instance to the contrary may be only a lateral sheet-like offshoot from one of the familiar basalts.

Type
Original Articles
Information
Geological Magazine , Volume 1 , Issue 5 , May 1894 , pp. 220 - 222
Copyright
Copyright © Cambridge University Press 1894

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 220 note 1 Proc. Roy. Dublin Soc. vol. vii. (1892), p. 511.Google Scholar

page 220 note 2 “lehrbuch der Petrographie,” 2te Autiage (1894), 2te Band, , p. 704.Google Scholar

page 221 note 1 “Dykes appearing on the shore which skirts the Mourne Mountains.” Journ. Geol. Soc. Dublin, , vol. i. p. 182.Google Scholar