| Reference Type | Journal (article/letter/editorial) |
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| Title | Two kinds of exsolution in chondritic olivine |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Ashworth, J. R. | Author |
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| Year | 1979 (December) | Volume | 43 |
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| Page(s) | 535-538 | Issue | 328 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_43/43-328-535.pdf+ |
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| DOI | doi:10.1180/minmag.1979.043.328.14Search in ResearchGate |
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| Mindat Ref. ID | 3077 | Long-form Identifier | mindat:1:5:3077:3 |
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| GUID | 756c99d6-ddee-447f-9bb2-22eed0a8d67b |
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| Full Reference | Ashworth, J. R. (1979) Two kinds of exsolution in chondritic olivine. Mineralogical Magazine, 43 (328) 535-538 doi:10.1180/minmag.1979.043.328.14 |
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| Plain Text | Ashworth, J. R. (1979) Two kinds of exsolution in chondritic olivine. Mineralogical Magazine, 43 (328) 535-538 doi:10.1180/minmag.1979.043.328.14 |
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| In | (1979, December) Mineralogical Magazine Vol. 43 (328) Mineralogical Society |
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| Abstract/Notes | SummaryTransmission electron microscopy of several chondritic meteorites reveals exsolution products of two kinds in olivine. The coarser variety comprises particles that have nucleated heterogeneously on subgrain boundaries. Electron microprobe data confirm that these are chromite. The second variety, consisting of smaller precipitates distributed randomly, is interpreted as a homogeneously nucleated analogue of the first. It is potentially important as an indicator of cooling history. The aluminium-poor compositions of heterogeneously exsolved chromites suggest that some Cr may have entered tetrahedral sites in olivine during initial rapid crystallization from the melt. |
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