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Chepurov A. I. Zhimulev E. I. Sonin V. M. Chepurov A. A. Karpovich Z. A. Goryainov S. V. Afanasiev V. P. Pokhilenko N. P. 《Doklady Earth Sciences》2021,500(1):734-737
Doklady Earth Sciences - Experimental results on the growth of cubic diamond on lonsdaleite-bearing diamonds from the Popigai astrobleme at 5.5 GPa and 1450°C in the Fe–Ni–C system... 相似文献
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N. V. Berdnikov T. G. Shumilova S. A. Pyachin M. A. Pugachevsky A. A. Cherepanov S. I. Isaenko N. F. Karpovich V. S. Komarova 《Russian Journal of Pacific Geology》2014,8(4):268-275
Carbonaceous matter (CM) in shales of some deposits and occurrences of the Russian Far East has been studied by scanning and transmission electron microscopy, Raman spectroscopy, and X-ray phase and differential thermal analyses. It was shown that the carbonaceous matter in the high-temperature shales (amphibolite facies) of the Soyuznoe deposit is represented by holocrystalline graphite, while the low-temperature (greenschist facies) shales of the Sutyr and Kimkan sequences contain mainly nanocrystalline graphite. It was substantiated for natural objects that platinum is assimilated by graphite at high temperatures. This should be taken into account in planning the prospecting works, as well as in developing a technique for enrichment of carbonaceous ore, because high-temperature carbonaceous shales with holocrystalline graphite are promising for Pt, unlike their low-temperature analogues with nanocrystalline graphite. 相似文献
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Zhimulev E. I. Babich Yu. V. Karpovich Z. A. Chepurov A. I. Pokhilenko N. P. 《Doklady Earth Sciences》2020,494(1):696-698
Doklady Earth Sciences - The first results on diamond growth in the Fe–С–S system with 1 wt % S (relative to Fe) at 6 GPa and 1450°C have been reported. The diamonds obtained... 相似文献
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