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Published online by Cambridge University Press: 01 May 2009
In the course of some traverses of the central region of Anglesey recently made, preparatory to mapping it out in detail, I observed a few facts which, in spite of the evident complexity of the structures, can, I think, be safely described before completion of the map, and are of some interest in connection with other recent researches in gneissose areas.
An abstract of this paper was read before the British Association, Liverpool, September, 1896.
1 In the recognition of these peculiar modes of granitic injection will, I think, be found a reconciliation of the conflicting views that have been held as to the intrusive or “interbedded” character of the granite. I should like also to draw attention to the very vivid and faithful description of these phenomena by Sir A. C. Ramsay (“Geol. North Wales,” ed. 2, p. 243).