Compressibility of Epidote up to 20 GPa at 298 K

Chin. Phys. Lett.

2003, Vol. 20

Issue (7): 1172-1174 DOI:

Original Articles

Compressibility of Epidote up to 20 GPa at 298 K

QIN Shan¹;WU Xiang^1,2;LIU Jun¹;LIU Jing²;WU Zi-Yu²;LI Xiao-Dong²;LU An-Huai¹

¹Department of Geology, Peking University, Beijing 100871 ²Laboratory of Synchrotron Radiation, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039

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QIN Shan, WU Xiang, LIU Jun et al 2003 Chin. Phys. Lett. 20 1172-1174

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Abstract We carry out the in-situ high pressure energy dispersive x-ray diffraction measurements on natural epitote by using diamond anvil cell. The pressure dependence of the lattice parameters of natural epidote is reported up to 20 GPa at room temperature. The experimental results show that the compressibility of epidote along the crystal axes is similar with increasing pressure, and the room-temperature isothermal bulk modulus K₂₉₈ is 207±15 GPa, which is fitted by the Murnaghan equation of state in the case of the pressure derivative K'= 4.

Keywords: 91.60.Gf 91.60.Fe 61.10.-i

Published: 01 July 2003

PACS:	91.60.Gf	(High-pressure behavior)
	91.60.Fe	(Equations of state)
	61.10.-i

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I7/01172

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	QIN Shan
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