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.
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Original Russian Text © S.P. Krasheninnikov, A.V. Sobolev, V.G. Batanova, A.A. Kargaltsev, A.A. Borisov, 2017, published in Doklady Akademii Nauk, 2017, Vol. 475, No. 5, pp. 560–564.
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Krasheninnikov, S.P., Sobolev, A.V., Batanova, V.G. et al. Experimental testing of olivine–melt equilibrium models at high temperatures. Dokl. Earth Sc. 475, 919–922 (2017). https://doi.org/10.1134/S1028334X17080153
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DOI: https://doi.org/10.1134/S1028334X17080153