Garnet Growth in the Early Stage of Trachybasalt-Eclogite Transformation
ZHOU Wen-Ge1 , XIE Hong-Sen1 , ZHAO Zhi-Dan2 , GUO Jie1
1 Laboratory of Geodynamic under High Temperature and Pressure, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002
2 Department of Geology, China University of Geosciences, Beijing 100083
Garnet Growth in the Early Stage of Trachybasalt-Eclogite Transformation
ZHOU Wen-Ge1 ;XIE Hong-Sen1 ;ZHAO Zhi-Dan2 ;GUO Jie1
1 Laboratory of Geodynamic under High Temperature and Pressure, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002
2 Department of Geology, China University of Geosciences, Beijing 100083
关键词 ：
61.50.Ks ,
81.30.Hd
Abstract ： Garnet growth in the early stage of trachybasalt-eclogite transformation was observed at 2.0GPa and temperature of 860°C, 940°C and 1020°C for annealing times of 0.66-13.6h. The grain size was determined optically to be increased with increasing annealing time. The growth rate decreased with increasing grain size. The garnet growth law was: G2.46 = 5.65 x 10-15 t exp[-27.40 x 103 /RT], where G represents the average grain size after annealing time t, R is gas constant and T is absolute temperature.
Key words ：
61.50.Ks
81.30.Hd
出版日期: 2001-11-01
:
61.50.Ks
(Crystallographic aspects of phase transformations; pressure effects)
81.30.Hd
(Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder)
引用本文:
ZHOU Wen-Ge;XIE Hong-Sen;ZHAO Zhi-Dan;GUO Jie. Garnet Growth in the Early Stage of Trachybasalt-Eclogite Transformation[J]. 中国物理快报, 2001, 18(11): 1500-1503.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I11/1500
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2001, Vol. 18 
