Email this article Morphological characteristics of diamond crystals arising as the result of dissolution in Fe-Ni-S MELT at 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:
- Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
- Novosibirsk State University
- Issue: Vol 489, No 5 (2019)
- Pages: 497-501
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/18845
- DOI: https://doi.org/10.31857/S0869-56524895497-501
- ID: 18845
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Abstract
The first results on the dissolution of flat-faced diamond crystals of octahedral habit in Fe-Ni-S melt at 3,5 GPa and 1400 °С are presented. It has been established that as a result of dissolution, flat-faceted diamond crystals are transformed into curve-faced individuals with morphological features similar to kimberlite diamonds. It is concluded that similar forms of natural diamonds could have been formed in reducing domains of the Earth’s mantle before entering the kimberlite magma.
About the authors
I. A. Gryaznov
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: gryaznov_9@mail.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
E. I. Zhimulev
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Author for correspondence.
Email: gryaznov_9@mail.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
V. M. Sonin
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Email: gryaznov_9@mail.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
E. S. Lindenblot
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: gryaznov_9@mail.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
A. A. Chepurov
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Email: gryaznov_9@mail.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
N. V. Sobolev
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: gryaznov_9@mail.ru
Academician of the Russian Academy of Sciences
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090References
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