Fe–S melt as a likely solvent of diamond under mantle conditions

E. I. Zhimulev; V. M. Sonin; V. P. Afanasiev; A. I. Chepurov; N. P. Pokhilenko

doi:10.1134/S1028334X16120163

Fe–S melt as a likely solvent of diamond under mantle conditions

Authors: Zhimulev E.I.¹, Sonin V.M.¹, Afanasiev V.P.¹, Chepurov A.I.¹, Pokhilenko N.P.¹
Affiliations:
1. Sobolev Institute of Geology and Mineralogy, Siberian Branch
Issue: Vol 471, No 2 (2016)
Pages: 1277-1279
Section: Geochemistry
URL: https://journals.rcsi.science/1028-334X/article/view/189193
DOI: https://doi.org/10.1134/S1028334X16120163
ID: 189193

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Abstract

The first results of experimental study of diamond dissolution in a S-bearing Fe melt at high P–T parameters are reported and the morphology of partially dissolved crystals is compared with that of natural diamonds. Our results show that under the experimental conditions (4 GPa, 1400°C), flat-faced octahedral diamond crystals are transformed into curve-faced octahedroids with morphological features similar to those of natural diamonds.