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The sub-surface shape of part of the Loch Ailsh Intrusion, Assynt, as deduced from magnetic anomalies across the contact, with a note on traverses across the Loch Borralan Complex

Published online by Cambridge University Press:  01 May 2009

Ian Parsons
Ian Parsons
Affiliation:
Department of Geology and Mineralogy, Marischal College, Aberdeen.
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Abstract

Local magnetic anomalies of large magnitude are found over the marginal ultrabasic rocks of the Loch Ailsh intrusion. An intrepretation of these anomalies based on the measured magnetic properties of the pyroxenites shows that they are not reconcilable with a low-angle structure as required by the hypothesis that the intrusion is a stratified laccolite, and suggests that they form a steeply dipping sheet at the syenite-limestone contact. Similar anomalies occur along the southern margin of the Loch Borralan complex, suggesting steeply dipping marginal ultrabasic rocks.

Type
Articles
Information
Geological Magazine , Volume 102 , Issue 1 , February 1965 , pp. 46 - 58
Copyright
Copyright © Cambridge University Press 1965

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References

BIBLIOGRAPHY

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