Abstract
Micro-inclusions in diamonds from Zaire and Botswana differ in composition from the more common large inclusions of the peridotitic or eclogitic assemblages. These sub-micrometre inclusions resemble potassic magmas in their composition, but are enriched in H2O, CO2−3 and K2O and depleted in MgO. This composition represents a volatile-rich fluid or melt from the upper mantle, which was trapped in the diamonds as they grew.
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Navon, O., Hutcheon, I., Rossman, G. et al. Mantle-derived fluids in diamond micro-inclusions. Nature 335, 784–789 (1988). https://doi.org/10.1038/335784a0
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DOI: https://doi.org/10.1038/335784a0
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