Knowledge Management System Of Institute of Oceanology, Chinese Academy of Sciences
| Geochemical constraints on genesis of Paleoproterozoic A-type granite in the south margin of North China Craton | |
Xue, Shuo1,2,7; Xu, Yang2,7; Ling, Ming-Xing1,6; Kang, Qing-Qing3; Jiang, Xiao-Yan2; Sun, Sai-Jun2; Wu, Kai2,7; Zhang, Zhe-Kun2,7; Luo, Ze-Bin1,7; Liu, Yu-Long2; Sun, Weidong4,5,6
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| 2018-04-01 | |
| 发表期刊 | LITHOS
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| ISSN | 0024-4937 |
| 卷号 | 304页码:489-500 |
| 通讯作者 | Ling, Ming-Xing([email protected]) |
| 摘要 | Paleoproterozoic A-type granites are widely outcropped in the North China Craton (NCC), particularly in the Trans-North China Orogen. However, their genesis and tectonic significance remain obscure. Here we report systematic studies on geochronology and geochemical characteristics of A-type granite in Huayangchuan, south margin of the NCC. The samples are enriched in total alkali (K2O + Na2O > 8.97 wt%), and depleted in MgO (0.84-0.93 wt%), CaO (1.28-1.90 wt%) and P2O5 (0.18-0.20 wt%), with high FeOT/MgO (5.69-6.67). They are characterized by high Zr + Y + Nb + Ce values (1293-1392 ppm) and 10,000 x Ga/Al ratios (3.14-3.35), which are typical characteristics of A-type granite. The Huayangchuan A-type granite can be further classified as A1 -type subgroup based on particular geochemical features, e.g., low Y/Nb (0.87-1.00) and Yb/Ta (0.881.10). High precision zircon U-Pb dating of the A-type granite by secondary ion mass spectrometry (SIMS) yields Paleoproterozoic Pb-207/Pb-206 ages of 1829.5 +/- 2.5 Ma. The low zircon epsilon(Hf)(t) values (-6.97 to -10.45), along with zircon Hf model age of 2.7-2.9 Ga, indicate that the Huayangchuan A-type granite was derived from partial melting of the ancient continental crust with contribution of enriched mantle components. The low zircon delta O-18 composition (4.00 to 6.78 parts per thousand) indicates that the zircons were crystallized from low delta O-18 magmas, which derived from the crust metasomatized by low delta O-1(8) mantle fluids or melts. The E-W trend A(1)-type granitic plutons in the NCC are generally outcropped in a rift tectonic regime, which is consistent with the development of the mantle plume in the Xiong'er district. The large volume of basaltic magmas, generated by mantle plume head, underplated the lower continental crust and formed the Huayangchuan A-type granite. (C) 2018 Elsevier B.V. All rights reserved. |
| 关键词 | North China Craton (NCC) Paleoproterozoic A-type granite Rift Mantle plume |
| DOI | 10.1016/j.lithos.2018.02.022 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R&D Program of China[2017YFC0602301]###1390; National Key R&D Program of China[2017YFC0602302]###1389; joint research project by GIGCAS###1605; Sino Shaanxi Nuclear Industry Group###1606; Guangdong Natural Science Funds[2014A030306032]###1350; Guangdong Natural Science Funds[2015TQ01Z611]###1351; Youth Innovation Promotion Association CAS[2016315]###1353; National Key R&D Program of China[2017YFC0602301]; National Key R&D Program of China[2017YFC0602302]; joint research project by GIGCAS; Sino Shaanxi Nuclear Industry Group; Guangdong Natural Science Funds[2014A030306032]; Guangdong Natural Science Funds[2015TQ01Z611]; Youth Innovation Promotion Association CAS[2016315] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| WOS类目 | Geochemistry & Geophysics ; Mineralogy |
| WOS记录号 | WOS:000430029800029 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/158454 |
| 专题 | 深海极端环境与生命过程研究中心 |
| 通讯作者 | Ling, Ming-Xing |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China 3.Sino Shaanxi Nucl Ind Grp, Team 224, Xian 710100, Shaanxi, Peoples R China 4.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 6.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue, Shuo,Xu, Yang,Ling, Ming-Xing,et al. Geochemical constraints on genesis of Paleoproterozoic A-type granite in the south margin of North China Craton[J]. LITHOS,2018,304:489-500. |
| APA | Xue, Shuo.,Xu, Yang.,Ling, Ming-Xing.,Kang, Qing-Qing.,Jiang, Xiao-Yan.,...&Sun, Weidong.(2018).Geochemical constraints on genesis of Paleoproterozoic A-type granite in the south margin of North China Craton.LITHOS,304,489-500. |
| MLA | Xue, Shuo,et al."Geochemical constraints on genesis of Paleoproterozoic A-type granite in the south margin of North China Craton".LITHOS 304(2018):489-500. |
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