Email this article Estimation of Accumulation of Chromium Ion Impurities in the CaSiO3 and MgSiO3 Phases of the Earth’s Lower Mantle at Pressures of 18–25 GPa
- Authors: Marchenko E.I.1, Bobrov A.V.1,2,3, Eremin N.N.1
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Affiliations:
- Department of Geology, Moscow State University
- Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences
- Korzhinskii Institute of Experimental Mineralogy, Russian Academy of Sciences
- Issue: Vol 488, No 2 (2019)
- Pages: 1203-1206
- Section: Geochemistry
- URL: https://bakhtiniada.ru/1028-334X/article/view/195515
- DOI: https://doi.org/10.1134/S1028334X19100167
- ID: 195515
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Abstract
Based on the data of atomic modeling, the different schemes of isomorphic incorporation of Cr3+ ions into the crystal structures of CaSiO3 and MgSiO3 were tested in the pressure range of 18–25 GPa and at temperatures of 1873–2223 K. Under these PT parameters, the content of Cr3+ in these structures was estimated quantitatively. The semi-empirical simulation data are in good agreement with the results of experiments.
About the authors
E. I. Marchenko
Department of Geology, Moscow State University
Author for correspondence.
Email: marchenko-ekaterina@bk.ru
Russian Federation, Moscow, 119234
A. V. Bobrov
Department of Geology, Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences; Korzhinskii Institute of Experimental Mineralogy,Russian Academy of Sciences
Email: marchenko-ekaterina@bk.ru
Russian Federation, Moscow, 119234; Moscow,
119991; Chernogolovka, Moscow oblast, 142432
N. N. Eremin
Department of Geology, Moscow State University
Email: marchenko-ekaterina@bk.ru
Russian Federation, Moscow, 119234
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