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The Olivines of a Differentiated Teschenite Sill Near Gunnedah, New South Wales

Published online by Cambridge University Press:  01 May 2009

J. F. G. Wilkinson
J. F. G. Wilkinson
Affiliation:
Department of Geology, The University of New England, Armidale, N.S.W.
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Abstract

Data is presented on textural variation, optical properties, and resultant compositions of the olivines from a differentiated teschenite sill. The range in olivine composition is from Fa21 to Fa,60. Both the individual crystals and successive crops of crystals become more fayalitic with progressive differentiation.

Type
Articles
Information
Geological Magazine , Volume 93 , Issue 6 , December 1956 , pp. 441 - 455
Copyright
Copyright © Cambridge University Press 1956

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