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Determination of the Density of the Earth’s Core Based on the Equations of State of Iron and Titanium at High Pressures and Temperatures

  • THERMOPHYSICAL PROPERTIES OF MATERIALS
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Abstract

Using previously developed equations of state for iron and titanium, the density of the Earth’s core was calculated at a mass content of titanium in a mixture with iron of ~20%. This concentration is taken from data for high-titanium (HT) basalts, the formation of which in large igneous provinces is hypothetically associated with the ascent of thermal plumes in the mantle from the core to the surface. The calculated density on pressure dependences in the outer liquid and inner solid cores satisfactorily agree with the data of the preliminary reference Earth model (PREM).

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ACKNOWLEDGMENTS

The author thanks A.M. Podurets and the reviewer for helpful comments.

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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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  1. Russian Federal Nuclear Center–All-Russian Research Institute of Experimental Physics, Sarov, Russia

    A. B. Medvedev

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  1. A. B. Medvedev
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Correspondence to A. B. Medvedev.

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Medvedev, A.B. Determination of the Density of the Earth’s Core Based on the Equations of State of Iron and Titanium at High Pressures and Temperatures. High Temp 61, 785–789 (2023). https://doi.org/10.1134/S0018151X23060044

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  • DOI: https://doi.org/10.1134/S0018151X23060044

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