中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Influence of composition-dependent thermal conductivity on the long-term evolution of primordial reservoirs in Earth's lower mantle

文献类型:期刊论文

作者Li,Yang2; Deschamps,Frédéric1; Shi,Zhidong2; Guerrero,Joshua M.1; Hsieh,Wen-Pin1; Zhao,Liang2; Tackley,Paul J.3
刊名Earth, Planets and Space
出版日期2022-03-23
卷号74期号:1
关键词Mantle dynamics Thermal conductivity Lower mantle Primordial reservoirs Thermo-chemical mantle convection
DOI10.1186/s40623-022-01608-3
英文摘要AbstractThe influence of composition-dependent thermal conductivity and heterogeneous internal heating of primordial dense material on the long-term evolution of primordial reservoirs in the lower mantle of the Earth is investigated utilizing thermochemical mantle convection simulations in a 2-D spherical annulus geometry. Our results show that a reduction in the thermal conductivity of primordial dense material due to iron enrichment does not substantially alter mantle dynamics nor the long-term stability of the reservoirs of this dense material. If the primordial dense material is also enriched in heat-producing elements, the average altitude of these reservoirs slightly increases as the thermal conductivity is reduced, therefore, covering smaller core–mantle boundary areas. Our study indicates that the composition-dependent thermal conductivity of primordial material plays a second order role in the long-term evolution of Earth's mantle.Graphical Abstract
语种英语
WOS记录号BMC:10.1186/S40623-022-01608-3
出版者Springer Berlin Heidelberg
源URL[http://ir.iggcas.ac.cn/handle/132A11/102763]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li,Yang; Deschamps,Frédéric
作者单位1.Academia Sinica; Institute of Earth Sciences
2.Chinese Academy of Sciences; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Institutions of Earth Science
3.ETH Zürich; Institute of Geophysics, Department of Earth Sciences
推荐引用方式
GB/T 7714
Li,Yang,Deschamps,Frédéric,Shi,Zhidong,et al. Influence of composition-dependent thermal conductivity on the long-term evolution of primordial reservoirs in Earth's lower mantle[J]. Earth, Planets and Space,2022,74(1).
APA Li,Yang.,Deschamps,Frédéric.,Shi,Zhidong.,Guerrero,Joshua M..,Hsieh,Wen-Pin.,...&Tackley,Paul J..(2022).Influence of composition-dependent thermal conductivity on the long-term evolution of primordial reservoirs in Earth's lower mantle.Earth, Planets and Space,74(1).
MLA Li,Yang,et al."Influence of composition-dependent thermal conductivity on the long-term evolution of primordial reservoirs in Earth's lower mantle".Earth, Planets and Space 74.1(2022).

入库方式: OAI收割

来源:地质与地球物理研究所

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