| 扬子陆块东南缘黑色岩系铀多金属成矿体系和成矿机制 |
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| 引用本文： | 漆富成,张字龙,何中波,李治兴,王文全,苏香丽,张超.扬子陆块东南缘黑色岩系铀多金属成矿体系和成矿机制[J].铀矿地质,2011,27(3):129-135,145. |
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| 作者姓名： | 漆富成 张字龙 何中波 李治兴 王文全 苏香丽 张超 |
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| 作者单位： | 核工业北京地质研究院,北京,100029 |
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| 摘 要： | 扬子陆块东南缘发生过大规模的铀多金属成矿作用是不争的事实。该区硅质岩和磷块岩样品Fe/Ti、（Fe＋Mn）/Ti、Al/（Al＋Fe＋Mn）等含量比值和微量元素Ni-Co-Zn三角图解表明,硅质岩、硅质磷块岩主要为热水沉积作用的产物。磷块岩在La/Yb-REE图解中,投影点处于玄武岩区,显示其成矿物质来源与深部地质作用有关。稀土元素配分模式落在已知的典型热水沉积物上、下限之间,而在正常沉积物之外。笔者认为,该区发生的大规模铀多金属成矿作用受控于陆缘裂陷成矿环境,陆缘裂陷热水沉积作用或喷气-沉积作用是扬子陆块东南缘发生大规模铀成矿作用的重要机制。
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| 关 键 词： | 陆缘裂陷 黑色岩系 成矿体系 成矿机制 铀多金属 大规模成矿作用 |
Uranium-polymetallic ore-forming system and mechanism of the black rock series in the southeast continental margin of Yangtze plate |
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| QI Fu-cheng,ZHANG Zi-long,HE Zhong-bo,LI Zhi-xing,WANG Wen-quan,SU Xiang-li,ZHANG Chao.Uranium-polymetallic ore-forming system and mechanism of the black rock series in the southeast continental margin of Yangtze plate[J].Uranium Geology,2011,27(3):129-135,145. |
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| Authors: | QI Fu-cheng ZHANG Zi-long HE Zhong-bo LI Zhi-xing WANG Wen-quan SU Xiang-li ZHANG Chao |
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| Institution: | QI Fu-cheng,ZHANG Zi-long,HE Zhong-bo,LI Zhi-xing,WANG Wen-quan,SU Xiang-li,ZHANG Chao(Beijing Research Institute of Uranium Geology,CNNC,Beijing 100029,China) |
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| Abstract: | It is the indisputable fact that the large scale uranium-polymetallic mineralization had happen in the southeast continental margin of Yangtze plate.The rations of Fe/Ti,(Fe+Mn)/Ti,Al/(Al+Fe+Mn),and Ni-Co-Zn diagrams show that the siliceous rocks and phosphorites are the products of hydrothermal sedimentation in these area.In La/Yb-REE diagrams the data of phosphorites are clustered in the area of basales.Obviously,the source of phophorite's ore-forming materials is closely related with the geological proce... |
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| Keywords: | continental margin rifting black rock series ore-forming system ore-forming mechanism large scale uranium-polymetal mineralization |
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