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Dating post-metamorphic hydrothermal mineralization in the Lizard complex, Cornwall

Published online by Cambridge University Press:  01 May 2009

A. F. Seager,
F. J. Fitch and
J. A. Miller
A. F. Seager
Affiliation:
Department of Geology, Birkbeck College, 7/15 Gresse Street, London W1P 1PA, UK
F. J. Fitch
Affiliation:
Department of Geology, Birkbeck College, 7/15 Gresse Street, London W1P 1PA, UK
J. A. Miller
Affiliation:
Department of Geodesy and Geophysics, University of Cambridge, Madingley Rise, Madingley Road, Cambridge CB3 0EZ, UK
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Summary

Two new total degassing argon-40/argon-39 age determinations are quoted for crystals of adularia from hydrothermal veins within gabbro of the Lizard, Cornwall. The apparent ages of 147±3 Ma and 201±4 Ma obtained suggests the presence of at least two phases of hydrothermal mineralization long after the close of metamorphism.

Information

Type
Articles
Information
Geological Magazine , Volume 112 , Issue 5 , September 1975, pp. 519 - 522
Copyright
Copyright © Cambridge University Press 1975

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References

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