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Geochemistry and chronology of Se' ertengshan greenstone, Inner Mongolia

LIU Jianzhong WANG Lili ZHANG Fuqin LI Chunlai ZOU Yongliao OUYANG Ziyuan XU Lin

中国地球化学学报（英文版）2005，Vol.24Issue(1)：51-56,6.

Geochemistry and chronology of Se' ertengshan greenstone, Inner Mongolia

LIU Jianzhong ¹WANG Lili ²ZHANG Fuqin ³LI Chunlai ¹ZOU Yongliao ¹OUYANG Ziyuan ¹XU Lin⁴

作者信息

1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
2. Zhengzhou Railway Vocational and Technical College, Zhengzhou 450052, China
3. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China
4. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
折叠

摘要

Abstract

This paper deals with the meta-mafic volcanic rocks of the Gongyiming iron deposit at Baotou, Inner Mongolia. The major and trace elements and REE data indicate that the meta-mafic volcanic rocks occurred in the environment similar to a modern continental rift. Sm-Nd and Rb-Sr isotopic studies indicated that the meta-basic rocks were formed during the Early Neoarchean from 2800 Ma to 2900 Ma and reworked during the Late Neoarchean (2500 Ma) by metamorphism. Because of the separation of the North China Craton from the Siberia Craton during the Middle Proterozoic ( 1600 Ma), the Rb-Sr systematics of the rocks has been changed. The Se' ertengshan greenstone seems to occur during the Middle Archean. A stable continental crust may have existed during the Paleoarchean.

关键词

greenstone/chronology/geochemistry

Key words

greenstone/chronology/geochemistry

引用本文复制引用

LIU Jianzhong,WANG Lili,ZHANG Fuqin,LI Chunlai,ZOU Yongliao,OUYANG Ziyuan,XU Lin..Geochemistry and chronology of Se' ertengshan greenstone, Inner Mongolia[J].中国地球化学学报（英文版）,2005,24(1):51-56,6.

基金项目

This work was granted by the Innovation Program of the CAS ( KZCX2-115). （ KZCX2-115）

中国地球化学学报（英文版）

ISSN：2096-0956

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