Reference Type | Journal (article/letter/editorial) |
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Title | Zoned garnets in some Scottish Dalradian pelites |
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Journal | Mineralogical Magazine | ISSN | 0026-461X |
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Authors | Sivaprakash, C. | Author |
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Year | 1981 (September) | Volume | 44 |
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Issue | 335 |
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Publisher | Mineralogical Society |
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Download URL | https://rruff.info/doclib/MinMag/Volume_44/44-335-301.pdf+ |
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DOI | doi:10.1180/minmag.1981.044.335.10Search in ResearchGate |
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| Generate Citation Formats |
Mindat Ref. ID | 3275 | Long-form Identifier | mindat:1:5:3275:3 |
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|
GUID | 0 |
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Full Reference | Sivaprakash, C. (1981) Zoned garnets in some Scottish Dalradian pelites. Mineralogical Magazine, 44 (335) 301-307 doi:10.1180/minmag.1981.044.335.10 |
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Plain Text | Sivaprakash, C. (1981) Zoned garnets in some Scottish Dalradian pelites. Mineralogical Magazine, 44 (335) 301-307 doi:10.1180/minmag.1981.044.335.10 |
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In | (1981, September) Mineralogical Magazine Vol. 44 (335) Mineralogical Society |
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Abstract/Notes | AbstractZoning in garnets in Barrovian garnet zone rocks of central Perthshire is shown to be dependent on the continuous prograde reaction histories in which the garnet was involved. In highly aluminous rocks, garnet grows at the expense of chloritoid and staurolite whereas in less aluminous rocks garnet grows at the expense of chlorite. Minerals included in garnet such as ilmenite, plagioclase, chlorite, and chloritoid show compositional changes which with the garnet zoning elucidate the garnet-forming reactions. Where garnet is resorbed to produce staurolite the former loses Fe at its rim to staurolite so that ‘reverse’ zoning of decreasing Fe and increasing Mn and Ca towards garnet rim develops. |
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