Petrogenesis of the Mesozoic intrusive complexes from the southern Taihang Orogen, North China Craton: elemental and Sr-Nd-Pb isotopic constraints
文献类型：期刊论文
| 作者 | Chen, B; Jahn, BM; Arakawa, Y; Zhai, MG |
| 刊名 | CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
 |
| 出版日期 | 2004-12-01 |
| 卷号 | 148期号:4页码:489-501 |
| ISSN号 | 0010-7999 |
| DOI | 10.1007/s00410-004-0620-0 |
| 文献子类 | Article |
| 英文摘要 | A geochemical and isotopic study was carried out for three Mesozoic intrusive suites ( the Xishu, Wu'an and Hongshan suites) from the North China Craton (NCC) to understand their genesis and geodynamic implications. The Xishu and Wu'an suites are gabbroic to monzonitic in composition. They share many common geochemical features like high Mg# and minor to positive Eu anomalies in REE patterns. Initial Nd - Sr isotopic compositions for Xishu suite are epsilon(Nd)(135 Ma)= - 12.3 to - 16.9 and mostly I-Sr = 0.7056 - 0.7071; whereas those for Wu'an suite are slightly different. Pb isotopic ratios for Xishu suite are (Pb-206/Pb-204)(i) = 16.92 - 17.3, (Pb-207/Pb-204)(i) = 15.32 - 15.42, (Pb-208/Pb-204)(i) = 37.16 - 37.63, which are slightly higher than for Wu'an suite. The Xishu - Wu'an complexes are considered to originate from partial melting of an EM1-type mantle source, followed by significant contamination of lower crustal components. The Hongshan suite ( mainly syenite and granite) shows distinctly higher epsilon(Nd)(135 Ma) values ( - 8 to - 11) and slightly higher Pb isotopic ratios than the Xishu - Wu'an suites. It was formed via fractionation of a separate parental magma that also originated from the EM1-type mantle source, with incorporation of a small amount of lower crustal components. Partial melting of the mantle sources took place in a back-arc extensional regime that is related to the subduction of the paleo-Pacific slab beneath the NCC. |
| WOS关键词 | GEOCHEMICAL CHARACTERISTICS ; TRACE-ELEMENTS ; CONTINENTAL GROWTH ; IGNEOUS ROCKS ; MANTLE ; GRANITOIDS ; BENEATH ; CRUST ; GEODYNAMICS ; DESTRUCTION |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000225608400006 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64427]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, B |
| 作者单位 | 1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 2.Natl Taiwan Univ, Dept Geosci, Taipei 106, Taiwan 3.Univ Tsukuba, Inst Geosci, Tsukuba, Ibaraki 3058572, Japan 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, B,Jahn, BM,Arakawa, Y,et al. Petrogenesis of the Mesozoic intrusive complexes from the southern Taihang Orogen, North China Craton: elemental and Sr-Nd-Pb isotopic constraints[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2004,148(4):489-501. |
| APA | Chen, B,Jahn, BM,Arakawa, Y,&Zhai, MG.(2004).Petrogenesis of the Mesozoic intrusive complexes from the southern Taihang Orogen, North China Craton: elemental and Sr-Nd-Pb isotopic constraints.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,148(4),489-501. |
| MLA | Chen, B,et al."Petrogenesis of the Mesozoic intrusive complexes from the southern Taihang Orogen, North China Craton: elemental and Sr-Nd-Pb isotopic constraints".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 148.4(2004):489-501. |
入库方式： OAI收割
来源：地质与地球物理研究所
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