Zircon U–Pb ages of the pegmatites in the Kontum massif, central Vietnam and their quality evaluation for ceramic industry
Pegmatites occur in the Kontum massif as NE–SW oriented large dykes ranging from a few meters to several tens of meters in width. They consist of 3 stages of formation based on the difference of petrographic characteristics and ages: the first–stage pegmatites are characterized by quartz (40–45 vol%...
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Veröffentlicht in: | Journal of Mineralogical and Petrological Sciences 2021, Vol.116(6), pp.279-292 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Pegmatites occur in the Kontum massif as NE–SW oriented large dykes ranging from a few meters to several tens of meters in width. They consist of 3 stages of formation based on the difference of petrographic characteristics and ages: the first–stage pegmatites are characterized by quartz (40–45 vol%) and K–feldspar (55–60 vol%), the second–stage pegmatites are composed of K–feldspar (70 vol%), quartz (25 vol%), muscovite ( |
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ISSN: | 1345-6296 1349-3825 |
DOI: | 10.2465/jmps.210911 |