摘要
Based on their REE features, stratoid or lenticular amphibolites in the Dabie Complex are divided into two types: one is characterized by flat REE distribution patterns and the other by LREE-enrichment. Results of the REE quantitative modelling suggest that the amphibolites were formed from 20% partial melting of garnet lherzolite and 35-56% fractional crystallization of olivine (type THI ) or 14-20% fractional crystallization of olivine and clinopyroxene (type TH2).
Based on their REE features, stratoid or lenticular amphibolites in the Dabie Complex are divided into two types: one is characterized by flat REE distribution patterns and the other by LREE-enrichment. Results of the REE quantitative modelling suggest that the amphibolites were formed from 20% partial melting of garnet lherzolite and 35-56% fractional crystallization of olivine (type THI ) or 14-20% fractional crystallization of olivine and clinopyroxene (type TH2).
关键词
闪岩
稀土元素
结晶化
大别山
岩石成因
amphibolide, REE quantitative modelling
partial melting, fractional crystallization
Dabie Complex
