Thermodynamic calculations of Fe-Mg interdiffusion in (Mg,Fe)(2)SiO4 polymorphs and perovskite

	Thermodynamic calculations of Fe-Mg interdiffusion in (Mg,Fe)(2)SiO4 polymorphs and perovskite
	Baohua Zhang; Shuangming Shan
	2015
发表期刊	Journal of Applied Physics
卷号	117 期号:5
摘要	this study, we show that the temperature and pressure dependence of Fe-Mg interdiffusion in (Fe,Mg)(2)SiO4 polymorphs (olivine, wadsleyite, and ringwoodite) and perovskite can be successfully reproduced in terms of bulk elastic and expansivity data through a thermodynamic model (so-called cB Omega model) that interconnects point defect parameters with bulk properties. Under dry and wet conditions, our calculated Fe-Mg interdiffusion coefficients D-calc(Fe-Mg) (particularly for anisotropic diffusivity in olivine), activation enthalpy h(act), and activation volume nu(act) over a wide range of geologically relevant temperatures (1000-2400K) and pressures (0-100 GPa) are consistent with the experimental ones when the uncertainties are considered.
学科领域	地球深部物质与流体作用地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5971
专题	地球内部物质高温高压实验室_地球内部物质高温高压实验室_期刊论文
推荐引用方式 GB/T 7714	Baohua Zhang,Shuangming Shan. Thermodynamic calculations of Fe-Mg interdiffusion in (Mg,Fe)(2)SiO4 polymorphs and perovskite[J]. Journal of Applied Physics,2015,117(5).
APA	Baohua Zhang,&Shuangming Shan.(2015).Thermodynamic calculations of Fe-Mg interdiffusion in (Mg,Fe)(2)SiO4 polymorphs and perovskite.Journal of Applied Physics,117(5).
MLA	Baohua Zhang,et al."Thermodynamic calculations of Fe-Mg interdiffusion in (Mg,Fe)(2)SiO4 polymorphs and perovskite".Journal of Applied Physics 117.5(2015).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Thermodynamic calcul（1639KB）			开放获取	使用许可	浏览请求全文