| 内蒙古武川西乌兰不浪高级区岩石及其形成环境 |
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| 引用本文： | 张玉清,许立权,贾和义,刘颖璠,王弢.内蒙古武川西乌兰不浪高级区岩石及其形成环境[J].地质调查与研究,2005,28(2):71-78. |
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| 作者姓名： | 张玉清 许立权 贾和义 刘颖璠 王弢 |
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| 作者单位： | 内蒙古自治区地质调查院,呼和浩特,010020 |
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| 基金项目： | 中国地质调查局区域地质调查项目(20001300008051) |
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| 摘 要： | 西乌兰不浪高级变质的兴和岩群是1：5万、1：25万区域地质调查时从海西期岩体和五台群中重新厘定出来的地质体。通过野外宏观地质特征、岩石化学、地球化学等综合分析，认为西乌兰不浪地区高级区岩石不只是由表壳岩组成，还有大量的TTG岩系、紫苏花岗岩、脉岩和岩墙，它们是不同构造环境、不同时代的构造拼合体。其中表壳岩称为兴和岩群，为一套火山-沉积岩系，形成于活动大陆边缘。
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| 关 键 词： | 表壳岩 TTG 紫苏花岗岩 高角闪岩-麻粒岩相 内蒙古西乌兰不浪 |
| 文章编号： | 1672-4135(2005)02-0071-08 |
| 修稿时间： | 2005年2月5日 |
Metamorphic Petrology and Tectonic Setting of the Xi-Ulanbulang High-Grade Terrain, Wuchuan County, Inner Mongolia |
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| ZHANG Yu-qing,XU Li-quan,JIA He-yi,LIU Ying-fan,WANG Tao.Metamorphic Petrology and Tectonic Setting of the Xi-Ulanbulang High-Grade Terrain, Wuchuan County, Inner Mongolia[J].Geological Survey and Research,2005,28(2):71-78. |
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| Authors: | ZHANG Yu-qing XU Li-quan JIA He-yi LIU Ying-fan WANG Tao |
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| Abstract: | The Xi-Ulanbulang high-grade terrain is located in the northwest of Wuchuan County, Inner Mongolia, in which the Xinghe Rock-group is distinguished out from the original Variscian magmatic rocks and the Archean Wutai Group. Through the integration of field investigation, petrochemical and geochemical analysis,it is thought that the Xi-Ulanbulang high-grade terrain consists of not only supracrustal rocks, but also lots of TTG, charnockite and dyke rocks, which implicates to be a tectonic assemblage of various rocks with different setting and time. Among the assemblage, the supracrustal rocks named the Xinghe Rock-group is composed of volcano-sedimentary rocks that formed in mobile continental margin. These rocks underwent intensive thermal-tectonic event, metamorphosed into high-amphibolite to granulite facies. |
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| Keywords: | supracrustal rocks TTG charnockite high-amphibolite to granulite facies Xi-Ulanbulang Wuchuan County Inner Mongolia |
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