On the Serpetine and associated Rocks of Anglesey

Open Access
Publisher Website
Google Scholar
Abstract
1. A nglesey with H olyhead I sland T he serpentine from the vicinity of Rhoscolyn, though known within a limited area as an ornamental stone, does not appear to have received much attention from geologists. It is dismissed in Professor Ramsay's memoir on North Wales in a few brief sentences, and has not, so far as I know, met with fuller notice in any other quarter. On the Geological-Survey map it is delineated as forming an elongated lozenge-shaped patch about a mile and three quarters in length from E. to W., extending inland north of Rhoscolyn from the west shore of Holyhead Island, and occurring in several smaller patches on or near the opposite coast of Anglesey. In each of these localities I have studied the rock in the field, and have examined microscopically the specimens there collected. The results, I hope, may be of some use, though, after three separate visits, I have not been able to visit every one of the outcrops or examine minutely every part of the district. Owing to the intricacy of the coast in certain places, a map on a considerably larger scale than 1 inch to the mile would be required before an elaborate study could be undertaken. The questions which I have attempted to solve (as in all former studies of serpentine), were (1) its relations to the other associated rocks, and (2) its nature and origin. The ordinary rock in the vicinity of these masses of serpentine is a dull bluish or greenish schist,

This publication has 0 references indexed in Scilit: