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准噶尔板块东北缘富铌玄武岩的发现及其地质意义

DISCOVERY OF Nb-RICH BASALT AT THE NORTHEAST MARGIN OF JUNGGAR PLATE AND THE GEOLOGICAL SIGIFICANCE

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【作者】张海祥；牛贺才；于学元；单强； Hiroaki Sato； Junichi Ito；

【Author】 ZHANG Haiyang1, NIU Hecai1, YU Xueyuan1, SHAN Qiang1, Hiroaki Sato2, Junichi Ito2(1.Guangzhou Geochemical Institute of the Chinese Academy of Sciences, Guangzhou 510640, China;2.Department of Earth and Planetary Sciences, Faculty of Science, Kobe University, Kobe 6578501, Japan)

【机构】中国科学院广州地球化学研究所；日本神户大学理学部地球惑星科学教室；日本神户大学理学部地球惑星科学教室广东广州510640；广东广州510640；神户657-8501；神户657-8501；

【Abstract】 Nbrich basalt is discovered for the first time in uoranggekuduke formation of Lower carboniferous series, Fuyun county in the Northeast margin of Junnggar plate. It is derived from depth of 70~100 km and formed by partial melted peridodite of the mantle wedge which was replaced by adakite melting material, and is the product of the subduction of the palacoAsia ocean plate. The discovery implies a south subduction of the palaeoAsia oceanic crust toward Junggar plate during Early Carboniferous Epoch.更多还原

【关键词】准噶尔板块；晶屑凝灰岩；岩石组合；火山集块岩；洋壳；古亚洲洋；高场强元素；下泥盆统；俯冲作用；橄榄岩；

【基金】国家自然科学基金(编号:400073006);973项目(编号:2001CB409805)联合资助。

【文献出处】地质找矿论丛 ,Contributions To Geology and Mineral Resources Research , 编辑部邮箱 ,2003年01期

【分类号】P588.1
【被引频次】23
【下载频次】228

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