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The age and tectonic significance of the Bute amphibolite, Highland Border Complex, Scotland

Published online by Cambridge University Press:  01 May 2009

T. J. Dempster  and
B. J. Bluck
T. J. Dempster
Affiliation:
Department of Geology and Applied Geology, University of Glasgow, Glasgow G12 8QQ, U.K. Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow G75 0QU, U.K.
B. J. Bluck
Affiliation:
Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow G75 0QU, U.K.
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Abstract

Sm–Nd and K–Ar isotopic determinations on an amphibolite from the Highland Border Complex yield Cambrian ages. Collisional events which might have generated the amphibolite appear incompatible with the passive margin character of Laurentia at that time. A possible explanation is that the part of the Highland Border Complex containing the amphibolite and associated rock units was generated outside Laurentia.

Type
Rapid Communication
Information
Geological Magazine , Volume 128 , Issue 1 , January 1991 , pp. 77 - 80
Copyright
Copyright © Cambridge University Press 1991

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