主要研究方向：

1. 理论地球化学

2. 计算矿物物理

简历：

Joshua muir，男，1985年出生，博士，四级研究员，博士生导师。主要从事量子理论地球化学，专注于矿物研究，其研究工作中得理论和方法涵盖了矿物的结构、组成、性能、成因以及它们之间的相互关系等问题，被视为探索地球深部的有力理论工具，为相关学科提供了重要的基础理论支持。着重于通过精确模拟矿物体系的成分、压力、温度、氧逸度等关键地质参数，实现大体系低缺陷浓度的关键金属元素矿物体系理论模拟。通过在原子尺度下计算关键金属元素在矿物体系中的分配、分馏、扩散、聚集、耦合和分离等内生动力的细节，致力于解决关键金属元素稀缺、伴生、微观导致的隐藏、难辨识和难探测的基础科学问题。这些研究不仅为深入探索找矿过程向深部发展的难题提供了理论支持，也为高效清洁利用矿产资源提供了支持。发表（第一/通讯作者）SCI论文20多篇，其中在地球科学大类顶刊、NI期刊Earth and Planetary Science Letters发表论文2篇，国际权威地学杂志期刊Journal of Geophysical Research发表论文1篇，在Nature杂志作为共同作者发表论文1篇。

获奖及荣誉：

国家海外引进人才青年项目

代表论著：

Joshua M. R. Muir，Michael Jollands，Feiwu Zhang. The oxidation states of iron in dry and wet olivine: A thermodynamic model. Journal of Geophysical Research: Solid Earth, 2023, 50, e2023JB026840.

Feiwu Zhang, Tingting Xiao, and Muir J.M.R. Solid solution of CaSiO3 and MgSiO3 perovskites in the lower mantle: The role of ferrous iron. American Mineralogist, 2023, 108(3): 439-446,

Hua Yang, Muir J.M.R., and Feiwu Zhang. Volumes and spin states of FeHx: Implication for the density and temperature of the Earth's core, American Mineralogist, 2023, 108(4): 10.2138/am-2022-8237

Hua Yang, Peixue Dou, Tingting Xiao, Yunguo Li, Joshua M.R. Muir, Feiwu Zhang, The geophysical properties of FeHx phases under inner core conditions. Geophysical Research Letters, 2023, 50, e2023GL104493.

Hua Yang; Muir J.M.R; Feiwu Zhang. Iron hydride in the Earth's inner core and its geophysical implications. Geochemistry, Geophysics, Geosystems, 2022, 23, GC010620

Jollands, M; Muir J.M.R.; Padron-Narvta, J; Demouchy S. Modelling hydrogen mobility in forsterite as diffusion coupled to inter-site reaction, Contrib. Min. Pet., 2022, 177, 98

Drewitt, J; Walter, M; Brodholt J; Muir J.M.R.; Lord O. Hydrous silicate melts and the deep mantle H2O cycle, Earth Planet Sci Letters, 2022, 581, 117408

Muir, J. M. R.; Chen, Y., Xi Liu, Zhang, Feiwu. Extremely stable, highly conductive boron-hydrogen complexes in forsterite and olivine, Journal of Geophysical Research -Solid Earth, 2022，127, 2022JB024299

Muir, J. M. R., Zhang, Feiwu, & Walker, A. Fast anisotropic Mg and H diffusion in wet forsterite. Physics and Chemistry of Minerals, 2022, 49, 31.

Muir, J. M. R., Jollands, M., Zhang, Feiwu; Walker, A. Controls on the distribution of hydrous defects in forsterite from a thermodynamic model, Physics and Chemistry of Minerals, 2022, 49, 7

Muir, J. M. R.; Zhang, Feiwu; The Effect of Ti on Ca-pv and Mg-pv phase stability, Physics of the Earth and Planetary Interiors, 2022, 322, 106825

Muir, J.M.R.; Zhang, Feiwu; Walker, A. The mechanism of Mg diffusion in forsterite and the controls on its anisotropy, Physics of the Earth and Planetary Interiors, 2021, 321, 106805

Muir, J.M.R.; Thomson, A.R.; Zhang, Feiwu. The miscibility of calcium silicate perovskite and bridgmanite: A single perovskite solid solution in hot, iron-rich regions, Earth Planet Sci Letters, 2021, 566, 116973

Muir, J.M.R.; Zhang, Feiwu.; Brodholt, J. The effect of water on the post-spinel transition and evidence for extreme water contents at the bottom of the transition zone, Earth Planet Sci Letters, 2021, 565, 116909.

Jiang, JJ.; Muir, J.M.R.; Zhang, Feiwu. Vibrational and Thermodynamic Properties of Hydrous Iron-Bearing Lowermost Mantle Minerals, Minerals, 2021, 11, 885

Muir, J.M.R.; Jollands, M.; Zhang, Feiwu.; Walker, A. Explaining the dependence of M-site diffusion in forsterite on silica activity: a density functional theory approach, Physics and Chemistry of Minerals, 2020, 47, 55.

Muir, J.M.R.; Brodholt, J. Ferric Iron in bridgmanite and implications for ULVZs, Physics of the Earth and Planetary Interiors, 2020, 360, 106505.

Thomson, A. R.; Crichton, WA.; Brodholt, J.; Wood, I.; Siersch, NC.; Muir, J.M.R.; Dobson, D.; Hunt, S. Seismic velocities of CaSiO3 perovskite can explain LLSVPs in Earth’s lower mantle, Nature, 2019, 572, 643

Muir, J.M.R.; Brodholt, J. Water Distribution in the lower mantle: Implications for hydrolytic weakening, Earth Planet Sci Letters, 2018, 484, 363-369.

Muir, J.M.R.; Brodholt, J. Ferrous Iron Partitioning in the Lower Mantle, Physics of the Earth and Planetary Interiors, 2016, 257, 12-17.

Muir, J.M.R.; Brodholt, J. Elastic properties of ferropericlase at lower mantle conditions and its relevance to ULVZs, Earth Planet Sci Letters, 2015, 417, 40-48

Muir, J.M.R.; Brodholt, J. Elastic properties of ferrous bearing MgSiO3 and their relevance for ULVZs, Geophysical Journal International, 2015, 201, 496-504