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A sapphirine-cordierite-bronzite-phlogopite paragenesis from Namaqualand, South Africa

Published online by Cambridge University Press:  05 July 2018

T. N. Clifford ,
E. F. Stumpfl  and
J. R. McIver
T. N. Clifford
Affiliation:
Department of Geology, University of the Witwatersrand, Johannesburg, South Africa
E. F. Stumpfl
Affiliation:
Montanistische Hochschule, Leoben, Austria (formerly Mineralogisch-Petrographisches Institut, Universitäit Hamburg, Germany)
J. R. McIver
Affiliation:
Department of Geology, University of the Witwatersrand, Johannesburg, South Africa
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Summary

The rock composition and electron microprobe analyses of the five constituent minerals are presented for a sapphirine-cordierite-bronzite-phlogopite-spinel rock from Namaqualand, South Africa. These data are considered inrelation to experimental data and the mineralogy of certain associated rock types, and it is suggested that the sapphirine-bearing rock represents a metamorphic residuum (restite) after extraction of anatectic granitic liquid from an original argillaceous sediment.

Type
Research Article
Information
Mineralogical Magazine , Volume 40 , Issue 312 , December 1975 , pp. 347 - 356
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1975

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