| Reference Type | Journal (article/letter/editorial) |
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| Title | Occurrence of zoned uvarovite—grossular garnet in a rodingite from the Vumba Schist Belt, Botswana, Africa: implications for the origin of rodingites |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Mogessie, A. | Author |
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| Rammlmair, D. | Author |
| Year | 1994 (September) | Volume | 58 |
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| Issue | 392 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_58/58-392-375.pdf+ |
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| DOI | doi:10.1180/minmag.1994.058.392.03Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 2046 | Long-form Identifier | mindat:1:5:2046:0 |
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| GUID | 0 |
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| Full Reference | Mogessie, A., Rammlmair, D. (1994) Occurrence of zoned uvarovite—grossular garnet in a rodingite from the Vumba Schist Belt, Botswana, Africa: implications for the origin of rodingites. Mineralogical Magazine, 58 (392) 375-386 doi:10.1180/minmag.1994.058.392.03 |
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| Plain Text | Mogessie, A., Rammlmair, D. (1994) Occurrence of zoned uvarovite—grossular garnet in a rodingite from the Vumba Schist Belt, Botswana, Africa: implications for the origin of rodingites. Mineralogical Magazine, 58 (392) 375-386 doi:10.1180/minmag.1994.058.392.03 |
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| In | (1994, September) Mineralogical Magazine Vol. 58 (392) Mineralogical Society |
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| Abstract/Notes | AbstractBased on petrographic, mineralogical and geochemical data, two groups of rodingites have been documented from the polymetamorphic Vumba Schist Belt of Botswana. Group I rodingites contain relict chromite grains with zoned uvarovite-grossular + clinopyroxene + epidote/zoisite ± quartz, whereas group II rodingites contain no chromite and uvarovite. Although the presence of chromite with Cr/(Cr + Al + Fe3+) ratio > 90, similar to chromites found in komatiites, suggests a possible komatiitic origin of group I rodingites, the major and trace element chemical data of most analysed basic rocks from this belt indicate that the protoliths of both groups of rodingites are related to basalt/gabbro of komatiitic affinity. The rodingites formed during the M3 phase of metamorphism. |
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