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

Open Access
Publisher Website
Google Scholar
Abstract
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.

This publication has 0 references indexed in Scilit: