Original paper

The effect of aluminous titanite on the biotite-chlorite and amphibole-chlorite reactions

Janeczek, Janusz

European Journal of Mineralogy Volume 6 Number 5 (1994), p. 623 - 626

11 references

published: Sep 28, 1994
manuscript accepted: Jun 7, 1994
manuscript received: Jan 12, 1994

DOI: 10.1127/ejm/6/5/0623

BibTeX file

ArtNo. ESP147050605015, Price: 29.00 €

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Abstract

Abstract The effect of Al-rich titanite (XAI = 0.27 - 0.31) on formulation of mass transfer during biotite-chlorite and amphibole (pargasite)-chlorite reactions has been evaluated. The amount of Al-titanite in the chloritization reaction cannot be derived from the number of Ti atoms in 1 mole of biotite (TiBi) or amphibole (TiAmph) but is equal TiBi(Amph)/Titit, where Titit = 1 - Altit and TiBi and TiAmph are atoms of Ti and Al per formula unit of titanite. The assumption of ideal titanite stoichiometry can lead to incorrect estimates of the amount of both titanite and chlorite produced

Keywords

aluminous titanitebiotiteamphibolechloritization