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An Outline of the Structure of the Galway Granite

Published online by Cambridge University Press:  01 May 2009

Kevin Burke
Kevin Burke
Affiliation:
University College of Ghana, Achimota, Ghana.
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Abstract

Remapping of parts of the Galway granite has shown that over most of its outcrop it is a homogeneous adamellite. A steeply dipping belt of basic rocks borders the intrusion on the north where there is a reaction zone between adamellite and basic rock. A similar but gently dipping belt of basic rocks overlies the granite to the west. In the south, where there is no reaction zone, the granite intrudes and hornfelses a group of pillow lavas, greywackes, and conglomerates. The structural features of the northern border indicate that the granite has been emplaced as a diapir and radial fractures in the north-east border further indicate that the granite and its basic envelope moved upward and outward together into the Connemara schists.

Type
Articles
Information
Geological Magazine , Volume 94 , Issue 6 , December 1957 , pp. 452 - 464
Copyright
Copyright © Cambridge University Press 1957

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References

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