首页|Sequestration of helium and xenon via iron-halide compounds in early Earth

Sequestration of helium and xenon via iron-halide compounds in early Earth

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The terrestrial abundance anomalies of helium and xenon suggest the presence of deep-Earth reservoirs of these elements,which has led to great interest in searching for materials that can host these usually unreactive elements.Here,using an advanced crystal structure search approach in conjunction with first-principles calculations,we show that several Xe/He-bearing iron halides are thermodynamically stable in a broad region of P-T phase space below 60 GPa.Our results present a compelling case for sequestration of He and Xe in the early Earth and may suggest their much wider distribution in the present Earth than previously believed.These findings offer insights into key material-based and physical mechanisms for elucidating major geological phenomena.

Jurong Zhang、Hanyu Liu、Changfeng Chen、Yanming Ma

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Key Laboratory of Material Simulation Methods and Software of Ministry of Education and State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China

School of Physics and Electronics,Shandong Normal University,Jinan 250014,China

International Center of Future Science,Jilin University,Changchun 130012,China

Department of Physics and Astronomy,University of Nevada,Las Vegas,Nevada 89154,USA

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2024

10.1063/5.0164149

极端条件下的物质与辐射(英文)
中国工程物理研究院科技信息中心

极端条件下的物质与辐射(英文)

ISSN：2468-2047
年,卷(期)：2024.9(3)