Patterns of Phase Formation in Kimberlite under Reducing Conditions at 4 GPa and 1500°C
Experimental data on the interaction of an iron melt with natural kimberlite at a temperature of 1500 ± 25°C and a pressure of 4.0 ± 0.2 GPa corresponding to the conditions of the Earth’s upper mantle are reported. It was shown that the interaction of the carbonate component of kimberlite with iron...
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| Veröffentlicht in: | Doklady earth sciences 2022-06, Vol.504 (2), p.349-352 |
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| creator | Zhimulev, E. I. Chepurov, A. I. Sonin, V. M. Chepurov, A. A. Pokhilenko, N. P. |
| description | Experimental data on the interaction of an iron melt with natural kimberlite at a temperature of 1500 ± 25°C and a pressure of 4.0 ± 0.2 GPa corresponding to the conditions of the Earth’s upper mantle are reported. It was shown that the interaction of the carbonate component of kimberlite with iron resulted in the formation of magnesioferrite, a solid solution of carbon in iron, and carbide phases. The silicate–oxide part of the system included a mineral assemblage of olivine + pyroxene + garnet + monticellite + perovskite + (probably) ilmenite. The results obtained provide evidence for the instability of the carbonate component of kimberlite under the reducing conditions in the presence of metallic iron. |
| doi_str_mv | 10.1134/S1028334X22060162 |
| format | Article |
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The results obtained provide evidence for the instability of the carbonate component of kimberlite under the reducing conditions in the presence of metallic iron.</description><subject>Biotite</subject><subject>Carbonates</subject><subject>Diamond mining</subject><subject>Earth</subject><subject>Earth and Environmental Science</subject><subject>Earth mantle</subject><subject>Earth Sciences</subject><subject>Garnet</subject><subject>Geochemistry</subject><subject>Ilmenite</subject><subject>Iron</subject><subject>Kimberlite</subject><subject>Mantle</subject><subject>Mineral assemblages</subject><subject>Monticellite</subject><subject>Olivine</subject><subject>Perovskite</subject><subject>Perovskites</subject><subject>Pyroxene</subject><subject>Silicates</subject><subject>Solid solutions</subject><subject>Upper mantle</subject><issn>1028-334X</issn><issn>1531-8354</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp1kM1KAzEQxxdRsFYfwFvA82omH5vdY1lsFQsWP6C3Jbs7W1O6SU22B9_KZ_DJTKngQSSHhJnfbyb8k-QS6DUAFzfPQFnOuVgyRjMKGTtKRiA5pDmX4ji-Yzvd90-TsxDWlAohZDFKlgs9DOhtIK4jizcdkEyd7_VgnCXGkgfT1-g3ZkCysy168oTtrjF2RUpnW7PHAtEDEWS20ETbloCk9OuzPE9OOr0JePFzj5PX6e1LeZfOH2f35WSeNoyrIVU5KioViFq1jHKqJGItBTQMi5bLDiXnXFNd0LaoM6iBq0h2mcoFB9EAHydXh7lb7953GIZq7XbexpUVy_I8jpYZi9T1gVrpDVbGdm7wuomnxd40zmJnYn2iIAYjCxBRgIPQeBeCx67aetNr_1EBrfaJV38Sjw47OCGydoX-9yv_S9_ZsH_o</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Zhimulev, E. 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| ispartof | Doklady earth sciences, 2022-06, Vol.504 (2), p.349-352 |
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| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Biotite Carbonates Diamond mining Earth Earth and Environmental Science Earth mantle Earth Sciences Garnet Geochemistry Ilmenite Iron Kimberlite Mantle Mineral assemblages Monticellite Olivine Perovskite Perovskites Pyroxene Silicates Solid solutions Upper mantle |
| title | Patterns of Phase Formation in Kimberlite under Reducing Conditions at 4 GPa and 1500°C |
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