Geochronology and geochemistry of late Jurassic adakitic intrusions and associated porphyry Mo-Cu deposit in the Tongcun area, east China: Implications for metallogenesis and tectonic setting
文献类型：期刊论文
| 作者 | Tang, Yanwen1; Li, Xiaofeng1,2; Xie, Yuling3; Liu, Liang1; Lan, Tingguang1; Meffre, Sebastien4; Huang, Cheng1 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2017 |
| 卷号 | 80页码:289-308 |
| 关键词 | Qinzhou-hangzhou Metallogenic Belt High-k Calc-alkaline I-type Granite Zircon U-pb Dating Sericite Ar-ar Dating Tongcun Adakitic Intrusions |
| DOI | 10.1016/j.oregeorev.2016.06.032 |
| 文献子类 | Article |
| 英文摘要 | The genesis of adakites and associated Mo-Cu mineralization in non-arc settings in China is poorly constrained. Here, we present geochronology, geochemistry and Sr-Nd-Pb isotopes for the Tongcun intrusive complex, and report Pb isotopes and Ar-40-Ar-39 age for the Tongcun Mo-Cu deposit. The Tongcun intrusive complex is composed mainly by granodiorite and monzogranite (phase 1 and phase 2), with emplacement age of 160 Ma to 148 Ma. The Tongcun complex can be classified as typical high-K calc-alkaline I-type granitoid and also shows adakitic geochemical features. Moreover, the negative Nb, Ta, Ti, and P anomalies and enriched initial Sr-87/Sr-86 ratios of 0.7083-0.7092 of the Tongcun intrusive complex are consistent with those of the subduction-related magmatism. The Ar-40-Ar-39 dating of sericite, which is intergrown with chalcopyrite, indicates that the late Cu mineralization event occurred at similar to 155.5 Ma. The early Mo (Cu) and the late Cu mineralization events in this deposit were temporally, spatially and genetically associated with the emplacement of monzogranite (phase 1). There are no obvious linear correlation between SiO2 and most of the major and trace elements, and all rock samples fall within the fields of unfractional crystallization felsic granites in Zr + Nb + Ce + Y versus FeOT/MgO and (K2O + Na2O)/CaO diagrams, indicating that partial melting rather than fractional crystallization has played an important role for the formation of the Tongcun intrusive complex. Magmatic inherited zircons from the Tongcun granitoids with the age peaked at 780-812 Ma, imply that the Neoproterozoic igneous rocks in the lower crust have been incorporated into the magma source. The uniform epsilon(Nd)(t) (-6.3 to-7.3), initial Sr-87/Sr-86, Pb-207/Pb-204 (15.596-15.621), and Pb-208/Pb-204 (38374-38.650), as well as high K2O contents (336-4.10 wt.%) and relatively high Mg# values (35.40 to 40.30) suggest the Tongcun intrusive complex was derived from partial melting of the thickened lower continental crust triggered by basaltic magma underplating plus additional input from the EM II mantle-derived basaltic melts. The Tongcun area was controlled by a compression setting related to the subduction of the Paleo-Pacific Plate in Mesozoic period. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | I-TYPE GRANITES ; U-PB AGES ; CRUST-MANTLE INTERACTION ; HF ISOTOPIC CONSTRAINTS ; LACHLAN FOLD BELT ; A-TYPE GRANITES ; SOUTH CHINA ; ZHEJIANG PROVINCE ; SE CHINA ; JIANGXI PROVINCE |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000387625800017 |
| 资助机构 | State Key Fundamental Research Project of China(2012CB416705) ; State Key Fundamental Research Project of China(2012CB416705) ; 12th Five-Year Plan project of the National Science & Technology Pillar Program(2011BAB04B02) ; 12th Five-Year Plan project of the National Science & Technology Pillar Program(2011BAB04B02) ; 12th Five-Year Plan Project of State Key Laboratory of Ore-deposit Geochemistry, Chinese Academy of Sciences(SKLODG-ZY125-xx) ; 12th Five-Year Plan Project of State Key Laboratory of Ore-deposit Geochemistry, Chinese Academy of Sciences(SKLODG-ZY125-xx) ; State Key Fundamental Research Project of China(2012CB416705) ; State Key Fundamental Research Project of China(2012CB416705) ; 12th Five-Year Plan project of the National Science & Technology Pillar Program(2011BAB04B02) ; 12th Five-Year Plan project of the National Science & Technology Pillar Program(2011BAB04B02) ; 12th Five-Year Plan Project of State Key Laboratory of Ore-deposit Geochemistry, Chinese Academy of Sciences(SKLODG-ZY125-xx) ; 12th Five-Year Plan Project of State Key Laboratory of Ore-deposit Geochemistry, Chinese Academy of Sciences(SKLODG-ZY125-xx) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53263]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Ore Deposit Geochem, Inst Geochem, Guiyang 550081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 3.Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China 4.Univ Tasmania, CODES ARC Ctr Excellence Ore Deposits, Hobart, Tas 7001, Australia |
| 推荐引用方式 GB/T 7714 | Tang, Yanwen,Li, Xiaofeng,Xie, Yuling,et al. Geochronology and geochemistry of late Jurassic adakitic intrusions and associated porphyry Mo-Cu deposit in the Tongcun area, east China: Implications for metallogenesis and tectonic setting[J]. ORE GEOLOGY REVIEWS,2017,80:289-308. |
| APA | Tang, Yanwen.,Li, Xiaofeng.,Xie, Yuling.,Liu, Liang.,Lan, Tingguang.,...&Huang, Cheng.(2017).Geochronology and geochemistry of late Jurassic adakitic intrusions and associated porphyry Mo-Cu deposit in the Tongcun area, east China: Implications for metallogenesis and tectonic setting.ORE GEOLOGY REVIEWS,80,289-308. |
| MLA | Tang, Yanwen,et al."Geochronology and geochemistry of late Jurassic adakitic intrusions and associated porphyry Mo-Cu deposit in the Tongcun area, east China: Implications for metallogenesis and tectonic setting".ORE GEOLOGY REVIEWS 80(2017):289-308. |
入库方式： OAI收割
来源：地质与地球物理研究所
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