HP/UHP metamorphic time of eclogite in the Xitieshan terrane, North Qaidam UHPM belt, NW China
文献类型：期刊论文
| 作者 | Song ShuGuang1; Zhang Cong1; Li XianHua2; Zhang LiFei1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 27期号:4页码:1191-1197 |
| 关键词 | HP-UHP metamorphic belt Eclogite Metamorphic age Continental subduction Xitieshan terrane North Qaidam |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Xitieshan terrane is located in the middle part of the North Qaidam ultrahigh-pressure (UHP) metamorphic belt. It is one of the important terranes in the belt and consists of granitic and pelitic gneisses with lesser lensoid blocks of eclogite and serpentinized peridotite without garnet. Most eclogite blocks were retrograde to varying extent with symplectite and amphibolite overprinting. Although numbered zircon U-Pb geochronological data have been reported in recent years, time for HP-UHP eclogite-facies metamorphism remains debatable, and interpretations for the previous age data contradict against UHP metamorphic ages that have determined from the Yuka eclogite, Luliangshan garnet peridotite and coesite-bearing metapelite in Dulan. Using techniques of CL and SIMS analyses, combining studies on mineral inclusions in zircons, we obtained an eclogite-facies metamorphic age of 433 +/- 3Ma ( weighted mean). This age is consistent with metamorphic ages of Yuka eclogites and should represent HP-UHP metamorphic time for continental subduction. This study plays important role in understanding metamorphic evolution and deep subduction of continental crust in the Xitieshan eclogite-bearing terrane. |
| WOS关键词 | WESTERN CHINA ; TIBETAN PLATEAU ; GARNET PERIDOTITE ; CONTINENTAL COLLISION ; NORTHWESTERN CHINA ; OCEANIC SUBDUCTION ; PRESSURE ; CONSTRAINTS ; CRUST ; GEOCHRONOLOGY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000290080200023 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74576]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Song ShuGuang |
| 作者单位 | 1.Peking Univ, Dept Geol, MOE Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song ShuGuang,Zhang Cong,Li XianHua,et al. HP/UHP metamorphic time of eclogite in the Xitieshan terrane, North Qaidam UHPM belt, NW China[J]. ACTA PETROLOGICA SINICA,2011,27(4):1191-1197. |
| APA | Song ShuGuang,Zhang Cong,Li XianHua,&Zhang LiFei.(2011).HP/UHP metamorphic time of eclogite in the Xitieshan terrane, North Qaidam UHPM belt, NW China.ACTA PETROLOGICA SINICA,27(4),1191-1197. |
| MLA | Song ShuGuang,et al."HP/UHP metamorphic time of eclogite in the Xitieshan terrane, North Qaidam UHPM belt, NW China".ACTA PETROLOGICA SINICA 27.4(2011):1191-1197. |
入库方式： OAI收割
来源：地质与地球物理研究所
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