Experimental testing of olivine–melt equilibrium models at high temperatures
- Authors: Krasheninnikov S.P.1, Sobolev A.V.1,2, Batanova V.G.1,2, Kargaltsev A.A.1, Borisov A.A.1,3
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Affiliations:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Université Grenoble Alpes
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry
- Issue: Vol 475, No 2 (2017)
- Pages: 919-922
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/190520
- DOI: https://doi.org/10.1134/S1028334X17080153
- ID: 190520
Cite item
Abstract
Data are presented on the equilibrium compositions of olivine and melts in the products of 101 experiments performed at 1300–1600°C, atmospheric pressure, and controlled oxygen fugacity by means of new equipment at the Vernadsky Institute. It was shown that the available models of the olivine–melt equilibrium describe with insufficient adequacy the natural systems at temperatures over 1400°C. The most adequate is the model by Ford et al. (1983). However, this model overestimates systematically the equilibrium temperature with underestimating by 20–40°C at 1450–1600°C. These data point to the need for developing a new, improved quantitative model of the olivine–melt equilibrium for high-temperature magnesian melts, as well as to the possibility of these studies on the basis of the equipment presented.
About the authors
S. P. Krasheninnikov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Author for correspondence.
Email: spkrash09@gmail.com
Russian Federation, Moscow, 119991
A. V. Sobolev
Vernadsky Institute of Geochemistry and Analytical Chemistry; Université Grenoble Alpes
Email: spkrash09@gmail.com
Russian Federation, Moscow, 119991; Grenoble
V. G. Batanova
Vernadsky Institute of Geochemistry and Analytical Chemistry; Université Grenoble Alpes
Email: spkrash09@gmail.com
Russian Federation, Moscow, 119991; Grenoble
A. A. Kargaltsev
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: spkrash09@gmail.com
Russian Federation, Moscow, 119991
A. A. Borisov
Vernadsky Institute of Geochemistry and Analytical Chemistry; Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry
Email: spkrash09@gmail.com
Russian Federation, Moscow, 119991; Moscow, 119017