Petrological characteristics,geochemical feature and metallogenetic relation of alkaline-rich rocks in northwest of Yunan Province,China |
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| Authors: | ZHANG De-xian DAI Ta-gen School of Geosciences Info-physics Central South University Changsha China Economic Geology Research Unit James Cook University Townsville QLD Australia |
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| Affiliation: | ZHANG De-xian1,2,DAI Ta-gen1 1.School of Geosciences and Info-physics,Central South University,Changsha 410083,China,2.Economic Geology Research Unit,James Cook University,Townsville,4811,QLD,Australia |
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| Abstract: | The alkali-rich rocks,spreading along the suture zone of Jingsha River,refer to the alkali-rich porphyry rocks,which emplace during the Himalaya epoch in northwest of Yunnan Province,and consist of syenit,syenit porphyry,monzonite porphyry and granite porphyry.Petrological chemical analysis results suggest that silica is poor and aluminum is rich,and high potassium large ion lithophile elements(LILE),light rare earth element(LREE) and Sr are obviously detracted in these rocks.High field strength elements(HF... |
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| Keywords: | alkali-rich porphyry rocks Sanjiang metallogenetic belt geochemistry metallogenetic relation |
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