Sr and Pb isotopic disequilibrium between coexisting plagioclase and orthopyroxene in the Bushveld Complex, South Africa: microdrilling and progressive leaching evidence for sub-liquidus contamination within a crystal mush

Progressive leaching of plagioclase for Sr isotopes and microdrilling for Sr and Pb isotopes from grains of plagioclase and orthopyroxene from the Critical Zone and the Lower Zone indicates that these minerals are not in isotopic equilibrium. Leaching suggests Critical Zone plagioclase either lost R...

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Veröffentlicht in:	Contributions to mineralogy and petrology 2012-04, Vol.163 (4), p.653-668
Hauptverfasser:	Chutas, N. I., Bates, E., Prevec, S. A., Coleman, D. S., Boudreau, A. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Earth and Environmental Science Earth Sciences Geochemistry Geology Isotopes Leaching Mineral Resources Mineralogy Original Paper Petrology
Online-Zugang:	Volltext
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