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V.—The Geology of the Dolgelley Gold-belt, North Wales

Published online by Cambridge University Press:  01 May 2009

Arthur R. Andrew
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Extract

Bryn-y-groes Lode.—About 500 yards east of the Clogau lode, there is a parallel lode which has been worked for copper. Striking 50° east of north, its outcrop may be traced for about 1½ miles; its width is very variable. Chalcopyrite and pyrites and a little gold are present in the quartz. The lode is confined to the Vigra Beds, and running with the beds, it is associated throughout its length with greenstone sills.

Type
Original Articles
Information
Geological Magazine , Volume 7 , Issue 6 , June 1910 , pp. 261 - 271
Copyright
Copyright © Cambridge University Press 1910

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