The thermal equation of state of (Fe0.86Mg0.07Mn0.07)3Al2Si3O12 almandine

被引：16

作者：

Fan, Dawei W. ^{[1
,3
]}

Zhou, Wenge G. ^{[1
]}

Liu, Congqiang Q. ^{[1
]}

Liu, Yonggang G. ^{[1
]}

Wan, Fang ^{[1
,3
]}

Xing, Yinsuo S. ^{[1
,3
]}

Liu, Jing ^{[2
]}

Bai, Ligang G. ^{[2
,3
]}

Xie, Hongsen S. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Geochem, Lab Study Earths Interior & Geofluids, Guiyang 550002, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

MINERALOGICAL MAGAZINE | 2009年 / 73卷 / 01期

基金：

中国国家自然科学基金;

关键词：

equation of state; almandine; heating diamond anvil cell; synchrotron radiation; HYDROSTATIC COMPRESSION; HIGH-PRESSURE; ISOTHERMAL COMPRESSION; TEMPERATURE EQUATION; POWDER DIFFRACTION; ELASTIC PROPERTIES; SYNTHETIC PYROPE; SOLID-SOLUTION; BULK MODULUS; GARNETS;

D O I：

10.1180/minmag.2009.073.1.95

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

In situ X-ray diffraction measurements on almandine. (Fe0.86Mg0.07Mn0.07)(3)Al2Si3O12 were performed, using a heating diamond-anvil cell instrument with synchrotron radiation at Beljing Synchrotron Radiation Facility up to 27.7 Gpa and 533 K. The pressure-volume-temperature data were fitted to a third-order Birch-Munlaghan equation of state. The isothermal bulk Modulus of K-0 = 177 +/- 2 GPa, a temperature derivative of the bulk modulus of (partial derivative K partial derivative T)(p)= -0.032 +/- 0.016 GpaK(-1) and a thermal expansion coefficient (alpha(0)) of (3.1 +/- 0.7)x 10(-5) K-1 were obtained. This is the first time that the temperature derivative of the bulk modulus of almandine has been determined at high pressure and high temperature. Combining these results With previous results, the compositional dependence of the bulk modulus, thermal expansion, and temperature derivative of the bulk modulus are discussed.

引用

页码：95 / 102

页数：8

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