| 西藏亚勒-雄勒断裂带侵入岩体地球化学特征及构造成因 |
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| 引用本文： | 宋全友,秦勇,陈金刚.西藏亚勒-雄勒断裂带侵入岩体地球化学特征及构造成因[J].中国石油大学学报(自然科学版),2002,26(4). |
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| 作者姓名： | 宋全友 秦勇 陈金刚 |
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| 作者单位： | 中国矿业大学资源学院,江苏徐州,221008 |
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| 基金项目： | 原石油天然气总公司青藏项目 (CQ97YD 0 2 ) |
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| 摘 要： | 亚勒—雄勒断裂带是冈底斯板块与羌塘板块的分界断裂带 ,是班公湖—怒江断裂带中段的组成部分。对断裂带侵入岩岩体的岩石类型、岩石化学特征、岩石地球化学特征的研究表明 ,侵入岩石主要为闪长岩、石英闪长岩、角闪石闪长岩和花岗岩 ,属钙碱性岩石系列 ,具“Ⅰ”型花岗岩特征。其形成是由于在冈底斯板块与羌塘板块碰撞过程中 ,地壳物质发生熔融而沿断裂带侵入所致 ,为燕山晚期产物
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| 关 键 词： | 西藏地区 亚勒—雄勒断裂带 侵入岩体 岩石类型 地球化学特征 构造成因 |
Petrogeochemical characteristics and tectonic origin of the instrusive body of Yale-Xiongle fracture belt in Tibet area |
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| SONG Quan you,QIN Yong and CHEN Jin gang. College of Resource Science in the China University of Mining and Technology,Xuzhou.Petrogeochemical characteristics and tectonic origin of the instrusive body of Yale-Xiongle fracture belt in Tibet area[J].Journal of China University of Petroleum,2002,26(4). |
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| Authors: | SONG Quan you QIN Yong and CHEN Jin gang College of Resource Science in the China University of Mining and Technology Xuzhou |
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| Institution: | SONG Quan you,QIN Yong and CHEN Jin gang. College of Resource Science in the China University of Mining and Technology,Xuzhou 221008 |
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| Abstract: | Yale Xiongle fracture belt is the dividing boundary of Gangdisi plate and Qiangtang plate. It is the middle part of the Bangonghu Nujiang fracture belt. The study on the rock types, petrochemical characteristics and petrogeochemical characteristics of the instrusive rocks shows that the instrusive rocks are dominated by diorite, quartz diorite, amphibole diorite and granite,which belong to calc alkaline rock series and possess the characteristics of "I" granite. The rocks are the products of the Late Yanshanian Period, and formed by the lower crusted matter melting and instruding along the fracture belt caused by Gangdisi and Qiangtang plates. |
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| Keywords: | Tibet area Yale Xiongle fracture belt instrusive body rock type geochemical characters tectonic origin |
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