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《长春地质学院学报》 1995-04
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GEOLOGICAL CHARACTERISTICS AND PETROGENESIS OF THEARCHEAN TONALITIC GNEISSES IN THE SOUTH OF JILIN PROVINCE

Sun Deyou;Ge Wenchun;Wu Fuyuan(changchun Uni.of Eanth Sci.,Changchun 130061)Zhou Yongsheng(Institute of Geology SSB,Beijing 100036)  
The Archean Tonalitic gneisses in Jilin province consist mainly quartzdioritic-tonalitic-granodioritic-trondhjemitic gneisses. The characteristics of geology,petrography and geochemistry indicate that they were formed by same source magmacrystallization differentiation. The main differentiation mineral facies are hornblende andplagioclase. Magma came from partical melting of amphibolites in deep crust.
【Fund】: 国家自然科学基金
【CateGory Index】: P588.345
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