Stoichiometry-based estimates of ferric iron in calcic, sodic-calcic and sodic amphiboles: A comparison of various methods
An important drawback of the electron microprobe is its inability to quantify Fe3+/Fe2+ ratios in routinework. Although these ratios can be calculated, there is no unique criterion that can be applied toall amphiboles.Using a large data set of calcic, sodic-calcic, and sodic amphibole analysis from...
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| Veröffentlicht in: | Anais da Academia Brasileira de Ciências |
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| Hauptverfasser: | , |
| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
Academia Brasileira de Ciências
2005
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=32777312 |
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