| Reference Type | Journal (article/letter/editorial) |
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| Title | Thermodynamic models of reactions involving garnet in a sillimanite/staurolite schist |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Foster, C. T. | Author |
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| Year | 1986 (September) | Volume | 50 |
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| Issue | 357 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_50/50-357-427.pdf+ |
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| DOI | doi:10.1180/minmag.1986.050.357.07Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3879 | Long-form Identifier | mindat:1:5:3879:3 |
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| GUID | 0 |
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| Full Reference | Foster, C. T. (1986) Thermodynamic models of reactions involving garnet in a sillimanite/staurolite schist. Mineralogical Magazine, 50 (357) 427-439 doi:10.1180/minmag.1986.050.357.07 |
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| Plain Text | Foster, C. T. (1986) Thermodynamic models of reactions involving garnet in a sillimanite/staurolite schist. Mineralogical Magazine, 50 (357) 427-439 doi:10.1180/minmag.1986.050.357.07 |
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| In | (1986, September) Mineralogical Magazine Vol. 50 (357) Mineralogical Society |
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| Abstract/Notes | AbstractTextures produced by reactions involving garnet in a sillimanite-staurolite schist have been investigated using an irreversible thermodynamic model. The model predicts that the local production or consumption of garnet is strongly influenced by the proximity of garnet to growing sillimanite and dissolving staurolite. Garnets within sillimanite segregations should dissolve near the sillimanite-bearing centre of the segregation while garnets within or adjacent to staurolite poikilo-blasts should grow as the staurolite is replaced by a muscovite-rich pseudomorph. Garnets located in the matrix may grow, not react at all, or dissolve depending on the local configuration of nearby sillimanite, staurolite, and garnet. Textures predicted by the model are similar to those observed in thin section: many garnets are truncated within sillimanite segregations; garnets located in pseudo-morphs after staurolite are equant and have thick unpoikilitic rims that suggest growth; most matrix garnets also have thick inclusion-free rims that suggest growth but a few have thin rims, indicating little growth, or are irregularly shaped, suggesting dissolution. |
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