Email this article Morphological Features of Diamond Crystals Resulting from Dissolution in a Fe–Ni–S Melt under High Pressure
- Authors: Gryaznov I.A.1,2, Zhimulev E.I.1, Sonin V.M.1, Lindenblot E.S.1,2, Chepurov A.A.1, Sobolev N.V.1,2
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Affiliations:
- Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Novosibirsk State University
- Issue: Vol 489, No 2 (2019)
- Pages: 1449-1452
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/195729
- DOI: https://doi.org/10.1134/S1028334X19120122
- ID: 195729
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Abstract
The primary results are presented on the dissolution of plane-faced diamond crystals of octahedral habit in a Fe–Ni–S melt under 3.5 GPa and 1400°C. It was found that the dissolution resulted in the transformation of plane-faced into curve-faced individuals of morphological features characteristic for kimberlite diamonds. It was concluded that the diamond forms as such might have formed in reduced domains of the Earth’s mantle before becoming involved in the kimberlite magma.
About the authors
I. A. Gryaznov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
E. I. Zhimulev
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090
V. M. Sonin
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090
E. S. Lindenblot
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
A. A. Chepurov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090
N. V. Sobolev
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
Email: ezhimulev@igm.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
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