The Earth's core contains a significant concentration of silicon
Geochemical modeling and high-pressure experiments strongly support the conclusion that the Earth's core contains a significant concentration of silicon.
The retrieved literature contains multiple recent studies (e.g., papers 0, 9, and 10) utilizing first-principles simulations, diamond anvil cells, and core-formation modeling which explicitly conclude that silicon is one of the primary light elements present in significant amounts within the Earth's core. There are no refuting papers addressing this specific claim.
Tao Liu, Zhicheng Jing. Hydrogen and silicon are the preferred light elements in Earth’s core. 2024. https://doi.org/10.1038/s43247-024-01450-3
Recent geochemical modeling and first-principles simulations identify silicon as a preferred light element in Earth's core.
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Huang D, Murakami M, Gerstl S, Liebske C. Experimental quantification of hydrogen content in the Earth's core.. 2026. https://doi.org/10.1038/s41467-026-68821-6
Experimental quantification shows coupled sequestration of silicon and hydrogen into the iron alloy of the Earth's core.
Luo H, Zheng D, Deng J. Earth's core-mantle differentiation shaped by water.. 2025. https://doi.org/10.1126/sciadv.adu2952
Core-mantle differentiation models calculate significant silicon weight percentages in the Earth's core.
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