Petrological Notes on some North-of-England Dykes

Publisher Website
Google Scholar
Abstract
T he object of the present paper is to give a petrological account of some North-of-England dykes. The specimens on which the observations are based were mostly collected by myself during the winter of 1881–82; a few, however, were given me by Prof. Lebour and other friends. In the microscopic work I have derived great assistance from my friends Mr. I’Anson of Darlington and Dr. Trechmann of Hartlepool. To Mr. I’Anson I am indebted in another way; for he kindly handed over to me the analysis of the Great Ayton rock which was prepared for him by Mr. Stock. My indebtedness to the latter gentleman, and also to Mr. Stead of Middlesborough, will appear in the sequel. Without the valuable chemical work communicated by these gentlemen my paper would indeed be incomplete. It is no part of my purpose to describe the mode of occurrence of these dykes, and therefore the general course of each is indicated mainly by reference to works already published. One or two new facts of importance are, however, given; especially in relation to the dying-out of dykes beneath the surface. The dykes are first of all described in the order of their occurrence from south to north, and at the conclusion of the paper some general remarks on their mutual relations are given.

This publication has 0 references indexed in Scilit: