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Rhythmic amphibole overgrowths in appinites associated with explosion-breccias in Argyll

Published online by Cambridge University Press:  14 March 2018

D. R. Bowes ,
E. D. Kinloch  and
A. E. Wright
D. R. Bowes
Affiliation:
Department of Geology, The University, Glasgow, W. 2
E. D. Kinloch
Affiliation:
Department of Geology, The University, Glasgow, W. 2
A. E. Wright
Affiliation:
Department of Geology, The University, Birmingham, 15
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Summary

Tremolite and actinolite form rhythmic overgrowths over hornblende in appinites associated with pipes of explosion-breccia and represent growth under alternating physical conditions arising from increase of gas pressure and its explosive release. The number of overgrowths present in each appinite mass is related to the number of explosions required to breach the particular structural trap that hindered the upward movement of the volatiles.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 33 , Issue 266 , September 1964 , pp. 963 - 973
Copyright
Copyright © 1964, The Mineralogical Society

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References

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