Mantle metasomatism for metaperidotite from Shuanggou ophiolite of Yunnan Province by proton mioroprobe

Chen You-Hong，

Zhu Jie-Qing，

Wu Xian-Kang，

Gu Ying-Mei，

Li Xiao-Lin，

Zhang Qi，

Xu Ping，

Li Xiu-Yun

Nuclear Science and Techniques

Vol.7, No.2

pp.99-102

Published in print 01 May 1996

20800

This study shows that olivine, serpentine and orthopyroxene are enriched with compatible element Ni; clinopyroxene with Ni and Y; spinel strongly with Ni, Zn, Ga, Ge, As and Zr; chlorite with Ni, Zn, Sr and Zr. However, grossularite is poor in all of these trace elements, except Sr. The trace element composition and distribution in the minerals are heterogeneous. The distributions of trace elements in the minerals further demonstrate that they result from mantle metasomatism under open system.

OphioliteMantle metasomatismProton microprobeMicro-PIXETrace element composition and distribution

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