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Age Relations of Lewisian Basic Rocks, South of Gairloch, Ross-shire

Published online by Cambridge University Press:  01 May 2009

D. R. Bowes  and
Tharwat S. Ghaly
D. R. Bowes
Affiliation:
Dept. of Geology, The University, Glasgow, W. 2.
Tharwat S. Ghaly
Affiliation:
Dept. of Geology, The University, Glasgow, W. 2.
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Abstract

During the Laxfordian orogenic period dolerite intrusions crosscut and were chilled against vertical bands of hornblende schist that trend N.W.–S.E. Subsequent metamorphism affected both the regional hornblende schists and the dolerites, and narrow bands of hornblende schist were formed in places at the expense of doleritic chilled margins. Previous interpretations of Lewisian geochronology, tectonics and metamorphic history made on the basis of a unique pre-Laxfordian basic dyke phase, cannot be applied to the rocks south of Gairloch.

Type
Articles
Information
Geological Magazine , Volume 101 , Issue 2 , 17 April 1964 , pp. 150 - 160
Copyright
Copyright © Cambridge University Press 1964

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