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Thermal equation of state of natural tourmaline at high pressure and temperature
Jingui Xu; Yunqian Kuang; Bo Zhang; Yonggang Liu
2016
发表期刊Physics and Chemistry of Minerals
卷号43期号:5页码:315-326
摘要

Synchrotron-based in situ angle-dispersive X-ray diffraction experiments were conducted on a natural uvite-dominated tourmaline sample by using an external-heating diamond anvil cell at simultaneously high pressures and temperatures up to 18 GPa and 723 K, respectively. The angle-dispersive X-ray diffraction data reveal no indication of a structural phase transition over the P-T range of the current experiment in this study. The pressure-volume-temperature data were fitted by the high-temperature Birch-Murnaghan equation of state. Isothermal bulk modulus of K-0 = 96.6 (9) GPa, pressure derivative of the bulk modulus of K-0' = 12.5 (4), thermal expansion coefficient of alpha(0) = 4.39 (27) x 10(-5) K-1 and temperature derivative of the bulk modulus (partial derivative K/partial derivative T)(P) = -0.009 (6) GPa K-1 were obtained. The axial thermoelastic properties were also obtained with K-a0 = 139 (2) GPa, K-a0' = 11.5 (7) and alpha(a0) = 1.00 (11) x 10(-5) K-1 for the a-axis, and K-c0 = 59 (1) GPa, K-c0' = 11.4 (5) and alpha(c0) = 2.41 (24) x 10(-5) K-1 for the c-axis. Both of axial compression and thermal expansion exhibit large anisotropic behavior. Thermoelastic parameters of tourmaline in this study were also compared with that of the other two ring silicates of beryl and cordierite.

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/352002/6208
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
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GB/T 7714
Jingui Xu,Yunqian Kuang,Bo Zhang,et al. Thermal equation of state of natural tourmaline at high pressure and temperature[J]. Physics and Chemistry of Minerals,2016,43(5):315-326.
APA Jingui Xu,Yunqian Kuang,Bo Zhang,&Yonggang Liu.(2016).Thermal equation of state of natural tourmaline at high pressure and temperature.Physics and Chemistry of Minerals,43(5),315-326.
MLA Jingui Xu,et al."Thermal equation of state of natural tourmaline at high pressure and temperature".Physics and Chemistry of Minerals 43.5(2016):315-326.
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