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Oxygen isotope evidence for major fluid flow along the contact zone of the Rum ultrabasic intrusion

Greenwood, R. C.; Fallick, A. E. and Donaldson, C. H. (1992). Oxygen isotope evidence for major fluid flow along the contact zone of the Rum ultrabasic intrusion. Geological Magazine, 129(2) pp. 243–246.

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Abstract

Recent studies indicate that the Rum Tertiary ultrabasic intrusion formed in situ, and was not emplaced as a fault-bounded plug. The suggestion that the Main Ring Fault was the primary pathway for the flow of meteoric-hydrothermal fluids on Rum is therefore seriously flawed. Oxygen isotope evidence is presented indicating that the contact zone of the intrusion was the major pathway for meteoric fluids during cooling of the pluton. δ18O depletions of over 12‰ correlate with hydrothermal alteration assemblages, indicating that the bulk of the interaction with meteoric fluids took place at low temperatures (200–450 °C).

Item Type: Journal Article
Copyright Holders: 1992 Cambridge University Press
ISSN: 1469-5081
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 21340
Depositing User: Richard Greenwood
Date Deposited: 14 May 2010 13:40
Last Modified: 02 Dec 2010 20:54
URI: http://oro.open.ac.uk/id/eprint/21340
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