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VOLCANIC ROCKS AND GEOCHEMICAL CHARACTERISTICS OF THE BATAMAYINEISHAN FORMATION IN JINSHANGOU,XINJIANG
Author(s): 
Pages: 20-25
Year: Issue:  3
Journal: JOURNAL OF XI'AN ENGINEERING UNIVERSITY

Keyword:  新疆火山岩稀土元素Au-Ag矿化;
Abstract: 早石炭世巴塔玛依内山组为一套陆相火山岩,下部以基性熔岩为主,上部以中酸性、酸性火山碎屑岩为主.岩石地球化学研究表明,区内火山岩呈高铝玄武岩-安山岩-英安岩-流纹岩钙碱性系列的演化趋势.从基性岩到酸性岩稀土模式相似,但铕负异常愈加明显.火山活动与金银矿成矿关系密切,玄武岩类、火山碎屑岩类Au、Ag、 As含量较高,可能是成矿物源.
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