| 对滇西昌宁—孟连带大地构造背景的认识 |
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| 引用本文： | 王新利,林丽,朱利东,庞艳春,付修根,马叶情.对滇西昌宁—孟连带大地构造背景的认识[J].地质找矿论丛,2007,22(2):134-138. |
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| 作者姓名： | 王新利 林丽 朱利东 庞艳春 付修根 马叶情 |
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| 作者单位： | 成都理工大学沉积地质研究院,成都,610059 |
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| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划，四川省青年科技基金 |
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| 摘 要： | 昌宁-孟连带是我国西南"三江"地区重要的多金属成矿带.该带火山岩化学成分、稀土元素地球化学特征以及硅质岩的沉积地球化学特征均可与大陆边缘裂谷环境相类比.尽管区内玄武岩的微量元素地球化学特征与洋岛玄武岩相似,这是因为洋岛玄武岩与大陆裂谷玄武岩的地球化学特征本身就很相似.综合分析表明该带在晚古生代是在保山-掸邦地块东部发展起来的大陆边缘裂谷环境.
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| 关 键 词： | 昌宁-孟连带 地质背景 硅质岩 |
| 文章编号： | 1001-1412（2007）02-0134-05 |
| 收稿时间： | 2006/3/7 0:00:00 |
| 修稿时间： | 2006-03-07 |
BACKGROUND OF CHANGNING-MENGLIAN GEOTECTONIC BELT,WESTERN YUNNAN,CHINA |
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| WANG Xinli,LIN Li,ZHU Lidong,PANG Yanchun,FU Xiugen and MA Yeqing.BACKGROUND OF CHANGNING-MENGLIAN GEOTECTONIC BELT,WESTERN YUNNAN,CHINA[J].Contributions to Geology and Mineral Resources Research,2007,22(2):134-138. |
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| Authors: | WANG Xinli LIN Li ZHU Lidong PANG Yanchun FU Xiugen and MA Yeqing |
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| Institution: | College of sedimentary gelolgy , Chengdu University of Technology, Chengdu 610059,China |
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| Abstract: | Changning-Menglian belt is an important polymetallic ore belt in Three-River area of southwestern China.Geologic structure in this belt is very complex so different recognitions are involved with its geotectonic background.By analyzing the geochemical and depositional characters of volcanic rock and silicalite in the belt and comparing it with the typical geotectonic environment,the author considers that the belt belongs to continental margin rift environment developed on the basis of Baoshan-Shanbang block. |
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| Keywords: | Changning-Menglian belt geological background silicalite |
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