Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula, China: evidence for vein-plus-peridotite melting in the lithospheric mantle
文献类型：期刊论文
| 作者 | Yang, JH; Chung, SL; Zhai, MG; Zhou, XH |
| 刊名 | LITHOS
 |
| 出版日期 | 2004-04-01 |
| 卷号 | 73期号:3-4页码:145-160 |
| 关键词 | Mafic Dike Vein-plus-peridotite Geochemistry Lithospheric Mantled Jiaodong Peninsula China |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2003.12.003 |
| 文献子类 | Article |
| 英文摘要 | Major and trace elements and Sr-Nd-Pb isotope data are reported for Cretaceous mafic dikes from the Jiaodong Peninsula, eastern China. These dikes range from medium-K and high-K calc-alkaline to shoshonitic or ultrapotassic rocks, which are characterized by high MgO (Mg = 71-53) and Cr (177-1012 ppm) and low TiO2 (0.55-0.90 wt.%), total Fe2O3 (5.12-9.48 wt.%) and CaO (4.99-9.94 wt.%). Overall, they are enriched in the large ion lithophile elements (HFSE, e.g., Rb, Ba, Sr) and light rare earth elements (LREE), depleted in the high field strength elements (HFSE, e.g., Nb, Ti, P), and possess uniform initial Sr-87/Sr-86 (0.7094-0.7114) but relatively wide ranges of Nd[epsilon(Nd) (T)= -100.1- -17.0] and PB (Pb-206/(PB)-P-204 = 16.75-18.03) isotopic ratios, implying a magma origin from enriched but heterogeneous mantle sources. These geochemical and isotopic characteristics can be explained by the vein-plus-peridotite melting model, with amphibole- or phlogopite-bearing pyroxenite veins that reside in refractory lithospheric mantle beneath the North China Block. Such a vein-enriched mantle source formed by multiple metasomatic events, which we infer to have resulted from subduction-related processes that may have occurred in the Late Archean and Mesoproterozoic. The mafic dikes constitute a member of the widespread Mesozoic magmas emplaced in the North China Block as a result of regional lithospheric extension. (C) 2004 Elsevier B.V. All rights reserved. |
| WOS关键词 | SINO-KOREAN CRATON ; EASTERN CHINA ; NORTH CHINA ; CONTINENTAL-CRUST ; CENOZOIC BASALTS ; ULTRAPOTASSIC ROCKS ; GRANULITE XENOLITHS ; METAMORPHIC ROCKS ; VOLCANIC-ROCKS ; TRACE-ELEMENT |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000220710200001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64623]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, JH |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Natl Taiwan Univ, Dept Geosci, Taipei 10764, Taiwan 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Tecton Evolut Lithosphere, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, JH,Chung, SL,Zhai, MG,et al. Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula, China: evidence for vein-plus-peridotite melting in the lithospheric mantle[J]. LITHOS,2004,73(3-4):145-160. |
| APA | Yang, JH,Chung, SL,Zhai, MG,&Zhou, XH.(2004).Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula, China: evidence for vein-plus-peridotite melting in the lithospheric mantle.LITHOS,73(3-4),145-160. |
| MLA | Yang, JH,et al."Geochemical and Sr-Nd-Pb isotopic compositions of mafic dikes from the Jiaodong Peninsula, China: evidence for vein-plus-peridotite melting in the lithospheric mantle".LITHOS 73.3-4(2004):145-160. |
入库方式： OAI收割
来源：地质与地球物理研究所
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