Discrimination between primary magmatic biotites, reequilibrated biotites and neoformed biotites |
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Authors: | Hassane Nachit Abderrahmane Ibhi El Hassan Abia Mohcine Ben Ohoud |
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Institution: | LPMM, Geology Department, Faculty of Sciences, Ibn Zohr University, BP 28/S Agadir, Morocco |
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Abstract: | The ternary diagram TiO2–FeO*–MgO (FeO* = FeO + MnO) is proposed as a quantitative objective tool for distinguishing between primary magmatic biotites and those that are more or less reequilibrated, or possibly neoformed, by or within a hydrothermal fluid. The limit of the domains of the primary magmatic biotites, the reequilibrated biotites and the neoformed biotites were determined on the basis of optical, paragenetic and chemical criteria. To cite this article: H. Nachit et al., C. R. Geoscience 337 (2005). |
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Keywords: | Biotite Magmatic Reequilibrated Neoformed DiscriminationMots-clé s: Biotite Magmatique Ré é quilibré e Né oformé e Discrimination |
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