Interaction between subducted continental crust and the mantle——Ⅰ. Major and trace element geochemistry of the syncollisional mafic-ultramafic intrusions in the Dabie Mountains

被引：4

作者：

李曙光

聂永红

刘德良

郑双根

机构：

来源：

ScienceinChina(SeriesD:EarthSciences) | 1998年 / 05期

关键词：

Dabie Mountains; mafic\|ultramafic rocks; trace elements geochemistry; crust/mantle interaction;

D O I：

暂无

中图分类号：

P594 [自然作用地球化学];

学科分类号：

070902 ;

摘要：

The syncollisional mafic\|ultramafic intrusions in the North Dabie terrane are characterized by enriched LREE, Rb, Ba, and depletion of high field strength elements, such as Nb, Zr, Ti. The high Ti/Zr and Ti/Y ratios of their parent magma suggest that crust contamination of magma is not important to the above trace elements characters. They mainly reflect the features of their mantle source which has been modified by metasomatism in subduction environment.

引用

页码：545 / 552

页数：8

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