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- Title
Isotope compositions of C and O of magmatic calcites from the Udachnaya-East pipe kimberlite, Yakutia.
- Authors
Kuzmin, D.; Sobolev, N.; Tomilenko, A.; Dublyansky, Yu.
- Abstract
It has been demonstrated for the first time that the isotopic compositions of carbon (δC) in magmatic calcites from the Udachnaya-East pipe kimberlite groundmass varies from-2.5 to-1.0‰ (V-PDB), while those of oxygen (δO) range from 15.0 to 18.2‰ (V-SMOW). The obtained results imply that during the terminal late magmatic and postmagmatic stages of the kimberlite pipe formation, the carbonates in the kimberlite groundmass became successively heavier isotopically, which indicates the hybrid nature of the carbonate component of the kimberlite: it was formed with contributions from mantle and sedimentary marine sources.
- Subjects
SAKHA (Russia); MAGMAS; CALCITE analysis; CARBON isotopes; OXYGEN isotopes; KIMBERLITE eruptions; FLUID inclusions
- Publication
Doklady Earth Sciences, 2017, Vol 475, Issue 1, p828
- ISSN
1028-334X
- Publication type
Article
- DOI
10.1134/S1028334X17070297