EXPERIMENTAL JUSTIFICATION OF THE INFLUENCE OF S AND Ni ON CRYSTALLIZATION OF LOW-NITROGEN DIAMONDS IN A MELT OF Fe AT HIGH PRESSURE

V. M. Sonin; Сонин В. М.; E. I. Zhimulev; Жимулев Е. И.; A. A. Chepurov; Чепуров А. А.; A. A. Tomilenko; Томиленко А. А.; A. I. Chepurov; Чепуров А. И.; N. P. Pokhilenko; Похиленко Н. П.

doi:10.31857/S2686739722602599

EXPERIMENTAL JUSTIFICATION OF THE INFLUENCE OF S AND Ni ON CRYSTALLIZATION OF LOW-NITROGEN DIAMONDS IN A MELT OF Fe AT HIGH PRESSURE

Authors: Sonin V.M.¹, Zhimulev E.I.¹, Chepurov A.A.¹, Tomilenko A.A.¹, Chepurov A.I.¹, Pokhilenko N.P.¹
Affiliations:
1. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Issue: Vol 509, No 1 (2023)
Pages: 56-61
Section: MINERALOGY
Submitted: 30.01.2025
Published: 01.03.2023
URL: https://vestnik.nvsu.ru/2686-7397/article/view/649705
DOI: https://doi.org/10.31857/S2686739722602599
EDN: https://elibrary.ru/THVHNW
ID: 649705

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Abstract

Based on the analysis of the results on the synthesis and growth of diamonds in metal-sulfide melts at high pressure, the reason for the crystallization of low-nitrogen diamond crystals is substantiated. The introduction of sulfur into the iron melt leads to a decrease in the solubility of nitrogen, which, in turn, leads to a decrease in the content of nitrogen atoms in the melt and the probability of their capture by growing diamond crystals in the form of a structural impurity. The addition of nickel lowers the melting point of the growth system, increases the amount of melt, and, accordingly, promotes the dissociation of molecular nitrogen into individual atoms, which are captured by diamonds during growth as a structural impurity.

Keywords

diamond, metal-sulfide melts, high pressures and temperatures, nitrogen

References

Kanda H. Large diamond grown at high pressure conditions // Braz. J. Phys. 2000. V. 30 (3). P. 482–489.
Pehlke R.D., Elliott J.F. Solubility of nitrogen in liquid iron alloys // Trans AIME. 1960. V. 218. P. 1088–1101.
Liang Z-Z., Liang J-Q., Jia X-P. Effect of NaN3 added in Fe-C system on inclusion and impurity of diamond synthesized at high pressure and high temperature // Chin. Phys. Lett. 2009. V. 26 (3). P. 038104–3.
Kaminsky F., Wirth R. Nitrides and carbonitrides from the lowermost mantle and their importance in the search for Earth’s “lost” nitrogen // Am. Mineral. 2017. V. 102. P. 1667–1676. https://doi.org/10.2138/am-2017-6081
Sonin V., Tomilenko A., Zhimulev E., Bul’bak T., Chepurov A., Babich Yu., Logvinova A., Timina T., Chepurov A. The composition of the fluid phase in inclusions in synthetic HPHT diamonds grown in system Fe–Ni–Ti–C // Sci. Rep. 2022. V. 12: 1246. https://doi.org/10.1038/s41598-022-05153-7
Жимулев Е.И., Чепуров А.И., Синякова Е.Ф., Сонин В.М., Чепуров А.А., Похиленко Н.П. Кристаллизация алмаза в системах Fe–Co–S–C и Fe–Ni–S–C и роль металл-сульфидных расплавов в генезисе алмазов // Геохимия. 2012. № 3. С. 227–239. https://doi.org/10.1134/S0016702912030111
Жимулев Е.И., Шеин М.А., Похиленко Н.П. Кристаллизация алмаза в системе Fe–S–C // ДАН. 2013. Т. 451. № 1. С. 73–75.
Жимулев Е.И., Сонин В.М., Бульбак Т.А., Чепуров А.И., Томиленко А.А., Похиленко Н.П. Летучие соединения серы в системе Fe–C–S при 5.3 ГПа и 1300°С // ДАН. 2015. Т. 462. № 3. С. 340–345. https://doi.org/10.1134/S1028334X15050219
Yelisseyev A.P., Zhimulev E.I., Karpovich Z.A., Chepurov A.A., Sonin V.M., Chepurov A.I. Characterization of the nitrogen state in HPHT diamonds grown in an Fe–C melt with a low sulfur addition // Cryst. Eng. Comm. 2022. V. 24. P. 4408–4416. https://doi.org/10.1039/d2ce00487a
Жимулев Е.И., Сонин В.М., Миронов А.М., Чепуров А.И. Влияние содержания серы на кристаллизацию алмаза в системе Fe–C–S при 5.3–5.5 ГПа и 1300–1370°С // Геохимия 2016. Т. 54. № 5. С. 439–446. https://doi.org/10.1134/S0016702916050116
Von Goldbeck O.K. Iron-Sulfur. In: IRON – Binary Phase Diagrams. Springer-Verlag Berlin Heidelberg. 1982. P. 125–126.
Buono A.S., Walker D. The Fe-rich liquidus in the Fe-FeS system from 1 bar to 10 GPa // Geochim. Cosmochim. Acta. 2011. V. 75. P. 2072–2087. https://doi.org/10.1016/j.gca.2011.01.030
Kennedy C.S., Kennedy G.C. The equilibrium boundary between graphite and diamond // J. Geophys. Res. 1976. V. 81. P. 2467–2470.
Сонин В.М., Жимулев Е.И., Чепуров А.А., Чепуров А.И., Похиленко Н.П. Влияние содержания серы в расплаве Fe–S на сохранность алмазов при PT-условиях мантии Земли // ДАН. 2018. Т. 481. № 2. С. 193–196. https://doi.org/0.1134/S1028334X1807019X
Kocherzhiskii Yu.A., Kulik O.G., Turkevich V.Z. Phase equilibria in the Fe–Ni–C and Fe–Co–C systems under high temperatures and high pressures // High Temp.-High Pres. 1993. V. 25 (1). P. 113–116.
Zhang Z., Lentsch N., Hirschmann M.M. Carbon-saturated monosulfide melting in shallow mantle: solubility and effect on solidus // Contrib. Mineral. Petrol. 2015. V. 170: 47–13. https://doi.org/10.1007/s00410-015-1202-z
Fang S., Ma H., Wang Z., Yang Z., Cai Z.H., Ding L., Miao X., Chen L., Jia X. Study on growth characteristics of Ib-type diamond in an Fe-Ni-C-S system // Cryst. Eng. Comm. 2019. V. 21. P. 6010–6017. https://doi.org/10.1039/c9ce01194c
Palyanov Yu.N., Borzdov Yu.M., Khokhryakov A.F., Bataleva Yu.V., Kuprianov I.N. Effect of sulfur on diamond growth and morphology in metal-carbon systems // Cryst. Eng. Comm. 2020. V. 22. P. 5497–5508. https://doi.org/10.1039/d0ce00865f
Grewal D.S., Dasgupta R., Sun C., Tsuno K., Costin G. Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact // Science Advances. 2019. V. 5 (1). eaau3669. https://doi.org/10.1126/sciadv.aau3669
Smith E.M., Shirey S.B., Nestola F., Bullock E.S., Wang J., Richardson S.H., Wang W. Large gem diamonds from metallic liquid in Earth’s deep mantle // Science. 2016. V. 35. P. 1403–1405. https://doi.org/10.1126/science.aal1303