Abstract
Experiments on titanium partitioning between zircon and silicate melt were conducted at temperatures 1300 and 1400°С at 1 atm total pressure. Additionally, the Ti content in zircons of a few experimental series from (Borisov and Aranovich, 2019) was measured and a critical analysis of experimental literature was carried out. It was demonstrated that at high temperatures (1200–1450°С) DTi values lie in the range from 0.02 to 0.04 regardless of pressure, melt composition, and water content. Based on obtained data, the impossibility of zircon crystallization from high temperature basic melts once more was shown. It was shown that “Ti in zircon” geothermometer cannot describe Ti content in our experimental zircons and, possibly, cannot be applied to dry high-titanium melts at 1 atm total pressure.
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ACKNOWLEDGMENTS
We are grateful to A.L. Perchuk and T.V. Kaulina for the constructive discussion of results of this work.
Funding
This work was supported by the Russian Science Foundation (project no. 22-17-00052).
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Translated by M. Bogina
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Borisov, A.A., Borisovskiy, S.E. Titanium Partitioning between Zircon and Melt: an Experimental Study at High Temperatures. Petrology 32, 467–477 (2024). https://doi.org/10.1134/S0869591124700085
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DOI: https://doi.org/10.1134/S0869591124700085