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.
Original language | English |
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Pages (from-to) | 784-789 |
Number of pages | 6 |
Journal | Nature |
Volume | 335 |
Issue number | 6193 |
Publication status | Published - 1988 |
Externally published | Yes |