An oxygen buffer for some peraluminous granites and metamorphic rocks.
American Mineralogist
By: E. Zen
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Abstract
The mineral assemblage biotite-garnet-muscovite-magnetite-quartz and its sub-sets are common in many peraluminous granites, schists and gneisses. If the biotite and garnet are reasonably iron-rich, then the system is a useful buffer for fO2. Available thermochemical data indicate that, in T-fO2 space, the buffer curve is located between the hematite-magnetite curve and the quartz-magnetite-fayalite curve, in a region that previously had no buffer curve applicable to peraluminous rocks. -J.A.Z.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | An oxygen buffer for some peraluminous granites and metamorphic rocks. |
| Series title | American Mineralogist |
| Volume | 70 |
| Issue | 1-2 |
| Year Published | 1985 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | American Mineralogist |
| First page | 65 |
| Last page | 73 |