| Metamorphic evolution and SIMS zircon U-Pb geochronology of mafic granulite and amphibolite enclaves of the Pingyang trondhjemitic pluton, Fuping terrane, North China | |
Meng, Jie1 ; Peng, Tao1; Liu, Jia-Hui1; Zhang, Hui C. G.1; Wang, Guo-Dong1,2; Lu, Jun-Sheng3; Chen, Hong-Xu1; Wang, Hao Y. C.1; Zhang, Qian W. L.1; Wu, Chun-Ming1
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| 2017-12-01 | |
| 发表期刊 | PRECAMBRIAN RESEARCH
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| 卷号 | 303页码:75-90 |
| 文章类型 | Article |
| 摘要 | The discrete mafic granulite and amphibolite enclaves within the Pingyang trondhjemitic pluton, Fuping metamorphic terrane, middle Trans-North China Orogen, ubiquitously record three stages of metamorphic assemblages. For the mafic granulite enclaves, the prograde metamorphic assemblage (M1) is represented by mineral inclusions (clinopyroxene + hornblende + plagioclase + quartz +/- apatite) preserved in the garnet porphyroblast, the metamorphic peak (M2) assemblage consists of garnet and matrix minerals of clinopyroxene + orthopyroxene + hornblende + plagioclase + quartz + magnetite +/- ilmenite +/- zircon, and the retrograde (M3) stage is represented by symplectite assemblage of orthopyroxene + plagioclase +/- clinopyroxene +/- hornblende +/- quartz rimming the garnet porphyroblast. The metamorphic P-T paths of the mafic granulite enclaves are defined to pass from 560-750 degrees C/6-9 kbar (M1) through 740-880 degrees C/11-14 kbar (M2) to 720-800 degrees C/6-8 (M3), indicative of a collisional orogenic process. The metamorphic P-T path of the amphibolite enclave experienced from 670-730 degrees C/9.3-11.8 kbar to 710-730 degrees C/3.9-5.5 kbar, further certify such metamorphic feature of an orogenic belt. SIMS U-Pb dating of zircons of the trondhjemitic gneiss yields the magmatic crystallization age of similar to 2.52 Ga, and both the trondhjemitic gneiss and the mafic granulite enclaves yield the metamorphic age of similar to 1.89-1.86Ga. Therefore, it can be concluded that the Fuping terrane was involved in the late Palaeoproterozoic subduction-collision-uplifting tectonic process caused by amalgamation of the Eastern and Western Blocks of the North China Craton along the Trans-North China Orogen. (c) 2017 Elsevier B.V. All rights reserved. |
| 关键词 | Enclave P-t Path Pingyang Trondhjemitic Pluton Sims U-pb Dating Trans-north China Orogen Zircon |
| DOI | 10.1016/j.precamres.2017.02.014 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000423004300005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/154330 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth Sci, POB 4588, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Jie,Peng, Tao,Liu, Jia-Hui,et al. Metamorphic evolution and SIMS zircon U-Pb geochronology of mafic granulite and amphibolite enclaves of the Pingyang trondhjemitic pluton, Fuping terrane, North China[J]. PRECAMBRIAN RESEARCH,2017,303:75-90. |
| APA | Meng, Jie.,Peng, Tao.,Liu, Jia-Hui.,Zhang, Hui C. G..,Wang, Guo-Dong.,...&Wu, Chun-Ming.(2017).Metamorphic evolution and SIMS zircon U-Pb geochronology of mafic granulite and amphibolite enclaves of the Pingyang trondhjemitic pluton, Fuping terrane, North China.PRECAMBRIAN RESEARCH,303,75-90. |
| MLA | Meng, Jie,et al."Metamorphic evolution and SIMS zircon U-Pb geochronology of mafic granulite and amphibolite enclaves of the Pingyang trondhjemitic pluton, Fuping terrane, North China".PRECAMBRIAN RESEARCH 303(2017):75-90. |
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| Metamorphic evolutio（7599KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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