Structural control of the Rb distribution between K-micas and fluid in Brazil pegmatites

A geochemical study of pegmatitic micas from Minas Gerais State in Brazil was performed with an electron microprobe, in order to examine the variations of Rb, K, Al and F contents. It is observed a linear decreasing relationship between the [Rb/K] ratio of the micas and their contents in AlVI. The i...

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Veröffentlicht in:	Comptes rendus. Geoscience 2004-02, Vol.336 (2), p.117-124
Hauptverfasser:	Quemeneur, Joel, Volfinger, Marcel, Azevedo, Luciana
Format:	Artikel
Sprache:	eng ; fre
Online-Zugang:	Volltext
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