Multiple crust-mantle interactions for the destruction of the North China Craton: Geochemical and Sr-Nd-Pb-Hf isotopic evidence from the Longbaoshan alkaline complex
文献类型：期刊论文
| 作者 | Lan, Ting-Guang1; Fan, Hong-Rui1; Hu, Fang-Fang1; Tomkins, Andrew G.2; Yang, Kui-Feng1; Liu, Yongsheng3 |
| 刊名 | LITHOS
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 122期号:1-2页码:87-106 |
| 关键词 | Alkaline complex Crust-mantle interaction Longbaoshan Luxi Block North China Craton |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2010.12.001 |
| 文献子类 | Article |
| 英文摘要 | In situ zircon U-Pb ages and Hf isotopic data, major and trace elements, and Sr-Nd-Pb isotopic compositions are reported for the Longbaoshan alkaline intrusive complex in the western Shandong Province (Luxi Block), southeastern North China Craton. The Longbaoshan complex, which consists of quartz syenite, aegirine-augite syenite, hornblende syenite, monzonite, and syenodiorite. was emplaced at 129.4-131.7 Ma. The complex is characterized by high concentrations of SiO(2), K(2)O + Na(2)O, Al(2)O(3), LILEs (e.g., Sr and Ba), and LREEs, and low concentrations of CaO, Fe(2)O(3), MgO, and HFSEs (e.g., Nb, Ta, P and Ti). The Sr, Nd, Pb, and Hf isotopic values of this complex are similar to the nearby mafic rocks, which were derived from EM2-type lithospheric mantle, indicating that the Longbaoshan complex was mainly derived from partial melting of the EM2 source. Combined with geochemical and isotopic features, the high Nb/Ta ratios (average 19.2) of the Longbaoshan complex suggest that the EM2 source was induced by modification of crust-derived melts, which were in equilibrium with rutile-bearing eclogite. This was attributed to the subduction of the Yangtze continental crust. The presence of inherited zircons (2.51-2.64 Ga) with positive epsilon(Hf)(t) values (0.2-6.2) suggest that the ancient crust of the North China Craton was also involved in the formation of the Longbaoshan complex. Magma mixing modelling shows that those 10-35% crustal materials were assimilated in the complex. This complex may have experienced hornblende, apatite/monazite, and titanite crystal fractionation before emplacement in the shallow crust level. Two stages of crust-mantle interaction can be identified through the formation of the Longbaoshan complex, including (1) the lithospheric mantle was metasomatized by the melts/fluids derived from the subducted crust and then transformed into an EM2 counterpart, and (2) magma derived from the EM2 source underplated the ancient crust and assimilated the crust-derived materials. We thus propose that multiple crust-mantle interactions are the essential mechanism for the destruction of the NCC. The first intensive crust-mantle interaction was aroused by crustal subduction and was responsible for the lithospheric mantle destruction, and the second major crust-mantle interaction was induced by mantle-derived magma underplating and was responsible for the crustal activation. (c) 2010 Elsevier B.V. All rights reserved. |
| WOS关键词 | SUBCONTINENTAL LITHOSPHERIC MANTLE ; MAFIC-ULTRAMAFIC INTRUSIONS ; WESTERN SHANDONG PROVINCE ; OCEAN ISLAND BASALTS ; SINO-KOREAN CRATON ; IN-SITU ANALYSIS ; U-PB ; TRACE-ELEMENT ; CONTINENTAL-CRUST ; LU-HF |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000287347100007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Natural Science Foundation of China(40625010 ; Natural Science Foundation of China(40625010 ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; 40702016) ; 40702016) ; Natural Science Foundation of China(40625010 ; Natural Science Foundation of China(40625010 ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; 40702016) ; 40702016) ; Natural Science Foundation of China(40625010 ; Natural Science Foundation of China(40625010 ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; 40702016) ; 40702016) ; Natural Science Foundation of China(40625010 ; Natural Science Foundation of China(40625010 ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; Crisis Mines Continued Resources Exploration Project of China Geological Survey(20089930) ; 40702016) ; 40702016) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74662]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fan, Hong-Rui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Monash Univ, Sch Geosci, Clayton, Vic 3800, Australia 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lan, Ting-Guang,Fan, Hong-Rui,Hu, Fang-Fang,et al. Multiple crust-mantle interactions for the destruction of the North China Craton: Geochemical and Sr-Nd-Pb-Hf isotopic evidence from the Longbaoshan alkaline complex[J]. LITHOS,2011,122(1-2):87-106. |
| APA | Lan, Ting-Guang,Fan, Hong-Rui,Hu, Fang-Fang,Tomkins, Andrew G.,Yang, Kui-Feng,&Liu, Yongsheng.(2011).Multiple crust-mantle interactions for the destruction of the North China Craton: Geochemical and Sr-Nd-Pb-Hf isotopic evidence from the Longbaoshan alkaline complex.LITHOS,122(1-2),87-106. |
| MLA | Lan, Ting-Guang,et al."Multiple crust-mantle interactions for the destruction of the North China Craton: Geochemical and Sr-Nd-Pb-Hf isotopic evidence from the Longbaoshan alkaline complex".LITHOS 122.1-2(2011):87-106. |
入库方式： OAI收割
来源：地质与地球物理研究所
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