| Reference Type | Journal (article/letter/editorial) |
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| Title | Chrome-spinels from the Massif du Sud, southern New Caledonia |
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| Journal | Mineralogical Magazine |
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| Authors | Rodgers, K. A. | Author |
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| Year | 1973 (September) | Volume | 39 |
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| Issue | 303 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_39/39-303-326.pdf+ |
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| DOI | doi:10.1180/minmag.1973.039.303.09Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6693 | Long-form Identifier | mindat:1:5:6693:2 |
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| GUID | 0 |
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| Full Reference | Rodgers, K. A. (1973) Chrome-spinels from the Massif du Sud, southern New Caledonia. Mineralogical Magazine, 39 (303) 326-339 doi:10.1180/minmag.1973.039.303.09 |
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| Plain Text | Rodgers, K. A. (1973) Chrome-spinels from the Massif du Sud, southern New Caledonia. Mineralogical Magazine, 39 (303) 326-339 doi:10.1180/minmag.1973.039.303.09 |
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| In | (1973) Mineralogical Magazine Vol. 39 (303) Mineralogical Society |
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| Abstract/Notes | SummaryApproximately forty, variously shaped, chromitite bodies occur in dunites and harzburgites of the alpine-type peridotite complex of southern New Caledonia. The chromitites consist of pichrochromite (59 to 42% Cr2O3) and serpentinized olivine (Fo96-92) and display a variety of textures (massive, disseminated, and orbicular) consistent with a magmatic cumulate origin. Dunites contain olivine (Fo93−97) and 1 to 3% picrochromite (50 to 39% Cr2O3). Harzburgites have less than 1% spinel, ranging from picrochromite to ceylonite (45 to 28% Cr2O3) and often forming symplectic intergrowths with bronzite. Temperatures of crystallization of the cumulate picrochromites are believed to have been about 1200 °C while the more aluminous symplectic spinels equilibrated under different conditions and may reflect a late stage recrystallization episode. |
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