Publication
Nature
Paper

Mantle-derived fluids in diamond micro-inclusions

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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. © 1988 Nature Publishing Group.

Date

01 Jan 1988

Publication

Nature

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