Elasticity of calcite: thermal evolution

被引：34

作者：

Lin, Chung-Cherng ^{[1
]}

机构：

[1] Acad Sinica, Inst Earth Sci, Taipei 115, Taiwan

来源：

PHYSICS AND CHEMISTRY OF MINERALS | 2013年 / 40卷 / 02期

关键词：

Calcite; Elastic properties; Temperature; Compressibility; EQUATION-OF-STATE; SINGLE-CRYSTAL ELASTICITY; HIGH-PRESSURE BEHAVIOR; X-RAY-DIFFRACTION; CARBONATES; CONSTANTS; ARAGONITE; MAGNESITE; REFINEMENTS; DEPENDENCE;

D O I：

10.1007/s00269-012-0555-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The elastic properties of calcite have been determined by Brillouin spectroscopy for temperatures up to 600 degrees C. The results reveal that the variations of the aggregate bulk (K-VRH) and shear (G(VRH)) moduli of calcite with respect to temperature can be approximately expressed as follows: K-VRH(GPa) = 79.57 - 0.0230 T (T in degrees C) G(VRH)(GPa) = 32.23 - 0.0097 T. This indicates a nearly constant Poisson's ratio (0.322) for calcite from 22 to 600 degrees C. A further analysis shows that the compressibility along the c axis (beta(parallel to)) and that perpendicular to the c axis have comparable contributions to the volume compressibility of calcite, although the contribution of beta(parallel to) decreases with an increase in the temperature.

引用

页码：157 / 166

页数：10

共 42 条

[1]

Anderson L, 1965, PHYS ACOUSTIC B, VIIIB

[2] An interatomic potential model for carbonates allowing for polarization effects [J].