Petrogenesis of an alkali Syenite-Granite-Rhyolite suite in the Yanshan Fold and Thrust Belt, Eastern North China Craton: Geochronological, geochemical and Nd-Sr-Hf isotopic evidence for lithospheric thinning
文献类型：期刊论文
| 作者 | Yang, Jin-Hui1; Wu, Fu-Yuan1; Wilde, Simon A.2; Chen, Fukun1; Liu, Xiao-Ming3; Xie, Lie-Wen1 |
| 刊名 | JOURNAL OF PETROLOGY
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 49期号:2页码:315-351 |
| 关键词 | alkaline rocks zircon U-Pb dating petrogenesis crustal extension Yanshan Fold and Thrust Belt North China Craton |
| ISSN号 | 0022-3530 |
| DOI | 10.1093/petrology/egm083 |
| 文献子类 | Article |
| 英文摘要 | The Yanshan Fold and Thrust Belt in eastern China has been intruded by a series of alkalic igneous rocks, ranging in composition from granite and rhyolite to syenite and trachyte. Laser ablation inductively coupled plasma mass spectrometry U-Pb analyses of zircon from three alkaline suites yield Early Cretaceous ages of 130-117Ma. Three groups of rocks have been identified based on their mineralogical, geochemical and Sr-Nd-Hf isotope characteristics. The alkali granites and rhyolites are ferroan and have low Al2O3, MgO, CaO, Sr, Ba and Eu concentrations and high SiO2, total Fe2O3, K2O, Nb, Ga, Ta, Th and heavy rare earth element abundances and Ga/Al ratios. Geochemical data and Sr-, Nd- and zircon Hf-isotopic compositions [(Sr-87/Sr-86)(i) 0.7050-0.7164, epsilon(Nd)(t) = -8.4 to -13.6 and epsilon(Hf)(t) = -5.7 to -16.8] indicate that they were probably generated by shallow dehydration melting of biotite- or hornblende-bearing granitoid crustal source rocks and then mixed with contemporaneous magma from a mantle and/or lower crustal source. Ferroan syenites have distinct geochemical features from those of the alkaline granites and rhyolites, suggesting that they were produced by clinopyroxene and plagioclase fractionation of melt derived from an enriched mantle source, mixed with lower and upper crustal-derived magmas. The magnesian syenites and trachytes have Sr-, Nd- and zircon Hf-isotopic compositions that are distinct from those of the ferroan syenites. They were mainly derived from partial melting of lower crustal materials, mixed with enriched mantle-derived alkali basaltic magma. The emplacement of an alkali syenite-granite-rhyolite suite, coeval with the formation of metamorphic core complexes and pull-apart basins in eastern China, indicates they formed in an extensional setting, possibly as a result of lithospheric thinning. |
| WOS关键词 | A-TYPE GRANITES ; CRUST-MANTLE INTERACTION ; SINO-KOREAN CRATON ; LATE-MESOZOIC EXTENSION ; U-PB AGES ; CONTINENTAL-CRUST ; TECTONIC EVOLUTION ; LIAODONG PENINSULA ; CENTRAL-ASIA ; LU-HF |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000252903400006 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68880]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, Jin-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Curtin Univ Technol, Dept Appl Geol, Perth, WA 6845, Australia 3.NW Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 750069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jin-Hui,Wu, Fu-Yuan,Wilde, Simon A.,et al. Petrogenesis of an alkali Syenite-Granite-Rhyolite suite in the Yanshan Fold and Thrust Belt, Eastern North China Craton: Geochronological, geochemical and Nd-Sr-Hf isotopic evidence for lithospheric thinning[J]. JOURNAL OF PETROLOGY,2008,49(2):315-351. |
| APA | Yang, Jin-Hui,Wu, Fu-Yuan,Wilde, Simon A.,Chen, Fukun,Liu, Xiao-Ming,&Xie, Lie-Wen.(2008).Petrogenesis of an alkali Syenite-Granite-Rhyolite suite in the Yanshan Fold and Thrust Belt, Eastern North China Craton: Geochronological, geochemical and Nd-Sr-Hf isotopic evidence for lithospheric thinning.JOURNAL OF PETROLOGY,49(2),315-351. |
| MLA | Yang, Jin-Hui,et al."Petrogenesis of an alkali Syenite-Granite-Rhyolite suite in the Yanshan Fold and Thrust Belt, Eastern North China Craton: Geochronological, geochemical and Nd-Sr-Hf isotopic evidence for lithospheric thinning".JOURNAL OF PETROLOGY 49.2(2008):315-351. |
入库方式： OAI收割
来源：地质与地球物理研究所
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