Thermodynamics of cation ordering in karrooite (MgTi2O5)

被引：0
|
作者：
Ghiorso, MS
Yang, HX
Hazen, RM
机构：
[1] Univ Washington, Dept Geol Sci, Seattle, WA 98195 USA
[2] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA
[3] Carnegie Inst Washington, Ctr High Pressure Res, Washington, DC 20015 USA
来源：
AMERICAN MINERALOGIST | 1999年 / 84卷 / 09期
关键词：
D O I：
暂无
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A thermodynamic model of non-convergent cation-ordering in karrooite (MgTi2O5) has been calibrated from the single-crystal X-ray structure refinements of Yang and Hazen (1998) and from estimates of the dependence of the bulk modulus on ordering state (Hazen and Yang 1997). Derived values of the Gibbs free energy, enthalpy, entropy, and heat capacity of disordering of karrooite are reported as a function of temperature at 1 bar and at elevated pressures.
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页码：1370 / 1374
页数：5
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