The fluid phase evolution during the formation of carbonatite of the Guli massif: Evidence from the isotope (C, N, Ar) data
- Authors: Buikin A.I.1, Verchovsky A.B.2, Kogarko L.N.1, Grinenko V.A.1, Kuznetsova O.V.1
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Affiliations:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- The Open University
- Issue: Vol 466, No 2 (2016)
- Pages: 135-137
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/188011
- DOI: https://doi.org/10.1134/S1028334X16020057
- ID: 188011
Cite item
Abstract
The first data on variations of the isotope composition and element ratios of carbon, nitrogen, and argon in carbonatites of different generations and ultrabasic rocks of the Guli massif obtained by the method of step crushing are reported. It is shown that early carbonatite differs significantly from the later ones by the concentration of highly volatile components, as well as by the isotope compositions of carbon (CO2), argon, and hydrogen (H2O). The data obtained allow us to conclude that the mantle component predominated in the fluid at the early stages of formation of rocks of the Guli massif, whereas the late stages of carbonatite formation were characterized by an additional fluid source, which introduced atmospheric argon, and most likely a high portion of carbon dioxide with isotopically heavy carbon.
About the authors
A. I. Buikin
Vernadsky Institute of Geochemistry and Analytical Chemistry
Author for correspondence.
Email: bouikine@mail.ru
Russian Federation, ul. Kosygina 19, Moscow, 117975
A. B. Verchovsky
The Open University
Email: bouikine@mail.ru
United Kingdom, Milton Keynes
L. N. Kogarko
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: bouikine@mail.ru
Russian Federation, ul. Kosygina 19, Moscow, 117975
V. A. Grinenko
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: bouikine@mail.ru
Russian Federation, ul. Kosygina 19, Moscow, 117975
O. V. Kuznetsova
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: bouikine@mail.ru
Russian Federation, ul. Kosygina 19, Moscow, 117975
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