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《Chinese Journal of Geophysics》 1995-S2
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CHEMICAL CHARACTERISTICS AND TECTONIC ENVIRONMENTS OF GRANITOIDS IN THE CORRIDOR FROM GOLMUD TO EJIN QI

SUN GUI-YING;ZHANG DE-QUAN XU HONG-LIN (Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037 )  
In this paper the suites, chemical characteristics and tectonic environments of granitoid rocks in different terranes of the corridor have been analysed and compared with chemical compositions of total rocks. The acidity and aluminium saturation of the granitoid rocks show an increasing tendency from the Beishan area to the Qilian shan area. Most of the granitoids in the Beishan area belong to IAG+CAG and CAG types, while in the Qilian shan area the POG is dominant.In all the terraces a few anorogenic granitoids appear,but no CCG are discriminated.
【Fund】: 国家自然科学基金,地质矿产部重点资助
【CateGory Index】: P588.1
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