Petrogenesis and metamorphic age of Palaeoproterozoic granitic gneisses in Luliang area: Constraints from zircon and monazite U-Pb ages and Hf isotopes.
文献类型：期刊论文
| 作者 | Hu GuoHui2,3; Zhou YanYan4; Zhang ShuanHong2,3; Wang Wei2; Zhao TaiPing1; Wang ShiYan5 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2020 |
| 卷号 | 36期号:12页码:3631-3653 |
| 关键词 | North China Craton Luliang area Palaeoproterozoic Granitic gneisses Zircon and monazite U-Pb ages |
| ISSN号 | 1000-0569 |
| DOI | 10.18654/1000-0569/2020.12.05 |
| 英文摘要 | The Luliang area, occupying an important position in the Precambrian research on the North China Craton (NCC), developed extensive Palaeoproterozoic metamorphic supracrustal rocks and granitic rocks. It is of great significance to study the paleoproterozoic geological evolution of the NCC. This paper presents zircon and monazite U-Pb ages and zircon Hf isotopes of Palaeoproterozoic Baijiatan granitic gneisses in the Luliang area. Two granitic gneiss samples obtain LA-ICP-MS zircon U-Pb ages of 2182 +/- 16Ma and 2185 +/- 24Ma, respectively, representing their emplacement ages. New LA-ICP-MS dating of monazites from two samples yielded U-Pb ages of 1898 +/- 7Ma and 1899 +/- 14Ma, respectively, which are much younger than the concordant Pb-207/Pb-206 ages (2180 similar to 2032Ma) of zircon overgrowth rims. It indicates that monazites thoroughly suffered from the late metamorphism and their U-Pb ages showed the granitic gneiss underwent similar to 1900Ma metamorphism, which is synchronous with the metamorphic age of the Central Zone of the NCC. Zircon depleted mantle model ages are 2473 similar to 2598Ma and two-stage model ages are 2646 similar to 2839Ma, which are distinctively older than the zircon U-Pb ages. Zircon epsilon(Hf)(t) values are -1. 2 similar to + 1. 8 and -1. 3 similar to + 1. 4, respectively, suggesting the granitic gneiss were originated from partial melting of the late Archean crustal materials, without any mantle-derived materials input. Combined with the available zircon Hf isotopic data from middle Palaeoproterozoic (2. 2 similar to 2. 1Ga) magmatic rocks, the Late Archean crust of the NCC suffered from extensive remelting effect during 2. 2 similar to 2. 1Ga. The 2. 2 similar to 2. 1Ga magmatic activity widely distributed in the Luliang, Zhongtiao, Wutai and Jiao-Liao-Ji areas and elsewhere in the NCC, which may develop in an intracontinental rift setting. |
| WOS关键词 | NORTH CHINA CRATON ; LIAO-JI BELT ; WHOLE-ROCK GEOCHEMISTRY ; LA-ICP-MS ; PALEOPROTEROZOIC CRUSTAL EVOLUTION ; PRESSURE PELITIC GRANULITES ; HIGH-GRADE METAMORPHISM ; MAJOR TECTONIC UNITS ; IN-SITU ANALYSIS ; EASTERN BLOCK |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000605101000005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100002]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Hu GuoHui |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China 2.Chinese Acad Geol Sci, Inst Geomec, Beijing 100081, Peoples R China 3.Minist Nat Resources, Key Lab Paleomagnetism & Tecton Reconstruct, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 5.Henan Inst Geol Survey, Zhengzhou 450001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu GuoHui,Zhou YanYan,Zhang ShuanHong,et al. Petrogenesis and metamorphic age of Palaeoproterozoic granitic gneisses in Luliang area: Constraints from zircon and monazite U-Pb ages and Hf isotopes.[J]. ACTA PETROLOGICA SINICA,2020,36(12):3631-3653. |
| APA | Hu GuoHui,Zhou YanYan,Zhang ShuanHong,Wang Wei,Zhao TaiPing,&Wang ShiYan.(2020).Petrogenesis and metamorphic age of Palaeoproterozoic granitic gneisses in Luliang area: Constraints from zircon and monazite U-Pb ages and Hf isotopes..ACTA PETROLOGICA SINICA,36(12),3631-3653. |
| MLA | Hu GuoHui,et al."Petrogenesis and metamorphic age of Palaeoproterozoic granitic gneisses in Luliang area: Constraints from zircon and monazite U-Pb ages and Hf isotopes.".ACTA PETROLOGICA SINICA 36.12(2020):3631-3653. |
入库方式： OAI收割
来源：地质与地球物理研究所
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