Microcrystalline diamonds in the oceanic lithosphere and their nature
- Авторлар: Galimov E.M.1, Sevastyanov V.S.1, Karpov G.A.2, Shilobreeva S.N.1, Maksimov A.P.2
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Мекемелер:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Institute of Volcanology and Seismology, Far East Branch
- Шығарылым: Том 469, № 1 (2016)
- Беттер: 670-673
- Бөлім: Geochemistry
- URL: https://ogarev-online.ru/1028-334X/article/view/188587
- DOI: https://doi.org/10.1134/S1028334X16070011
- ID: 188587
Дәйексөз келтіру
Аннотация
The carbon isotope composition of microdiamonds found in products of the Tolbachik Volcano eruption, Kamchatka (porous lavas and ash), was studied. The isotope composition of microdiamonds (with an average value of δ13C =–25.05‰) is close to that of microsized carbon particles in lavas (from–28.9 to–25.3‰). The general peculiarities of the diamond-forming environment include (1) no evidence for high pressure in the medium; (2) a reduced environment; and (3) mineralogical evidence for the presence of a fluid. The geochemical data characterizing the type of diamonds studied allow us to suggest that they were formed in accordance with the mechanism of diamond synthesis during cavitation in a rapidly migrating fluid, which was suggested by E.M. Galimov.
Авторлар туралы
E. Galimov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Хат алмасуға жауапты Автор.
Email: galimov@geokhi.ru
Ресей, ul. Kosygina 19, Moscow, 117975
V. Sevastyanov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: galimov@geokhi.ru
Ресей, ul. Kosygina 19, Moscow, 117975
G. Karpov
Institute of Volcanology and Seismology, Far East Branch
Email: galimov@geokhi.ru
Ресей, Piipia bulv. 9, Petropavlovsk-Kamchatsky, 683006
S. Shilobreeva
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: galimov@geokhi.ru
Ресей, ul. Kosygina 19, Moscow, 117975
A. Maksimov
Institute of Volcanology and Seismology, Far East Branch
Email: galimov@geokhi.ru
Ресей, Piipia bulv. 9, Petropavlovsk-Kamchatsky, 683006
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