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Geochemistry and Sr-Nd-Pb-Hf isotopes of Early Cretaceous basalts from the Great Xinggan Range, NE China: Implications for their origin and mantle source characteristics

文献类型：期刊论文

作者Zhang, Lian-chang1; Zhou, Xin-hua2; Ying, Ji-feng2; Wang, Fei2; Guo, Feng3; Wan, Bo1; Chen, Zhi-guang1
刊名CHEMICAL GEOLOGY
出版日期2008-10-30
卷号256期号:1-2页码:12-23
ISSN号0009-2541
关键词Element geochemistry Sr-Nd-Pb-Hf isotope Basaltic rocks Early Cretaceous Extensional setting Great Xinggan Range NE China
DOI10.1016/j.chemgeo.2008.07.004
文献子类Article
英文摘要Late Mesozoic volcanism is widespread throughout northeastern China, mainly clustering in the Great Xinggan Range, where the major period of volcanic eruption was during the Early Cretaceous. The spatial distribution of volcanic rocksshows a NNE-extending pattern. The lithology of Mesozoic basaltic rocks in the Great Xinggan Range ranges from trachytic basalts, basalts to basaltic andesites. On the basis of lithological associations and spatial relationships, we divide the basalts into four groups, i.e. Tahe, Genhe, Zalute and Xiwu. The Early Cretaceous volcanism in the Great Xinggan Range is characterized by significant large ion lithophile elements (LILE) and light rare earth elements (LREE) enrichment and high field strength elements (HFSE) depletion, with a slightly enriched to depleted Nd-Hf and weakly enriched Sr isotopic compositions (initial (87)Sr/(86)Sr=0.7046-0.7079, epsilon(Nd)(t)=+3.6 to -6.9 and epsilon(Hf)(t) =+8.9 to -4.6). The Pb isotopic compositions are also variable with (206)Pb/(204)Pb, (207)Pb/(204)Pb and (208)Pb/(204)Pb values of 17.791-18.530, 15.477-15.597 and 37.761-38.497, respectively. The Sr-Nd-Pb-Hf isotopic data indicate that the magmatic sources are heterogeneous, showing an enriched to depleted signature of continental lithospheric mantle. The magmatic sources of the Genhe and Zalute groups are characterized by mixing among PM, EM II and DM, whereas the Tahe and Xiwu groups derive from enriched lithospheric mantle that had experienced metasomatism by fluids or melts from subducted Paleo-Asian and Mongol-Okhotsk ocean slabs and possible influence of Precambrian blocks. The Late Mesozoic volcanic rocks in the Great Xinggan Range resemble those of the Cenozoic calc-alkaline magmatism in the Basin and Range Province of the United States. We therefore suggest that the widespread Mesozoic volcanic rocks in the Great Xinggan Range were generated in an extensional tectonic setting. (C) 2008 Elsevier B.V. All rights reserved.
WOS关键词CALC-ALKALINE VOLCANISM ; MONGOL-OKHOTSK OCEAN ; INNER-MONGOLIA ; NORTHEASTERN CHINA ; CHEMICAL CLASSIFICATION ; TECTONIC IMPLICATIONS ; NORTHERN CHINA ; XINGAN RANGE ; CENTRAL-ASIA ; LU-HF
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000260933800002
资助机构National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; National Natural Science Foundation of China(40334043) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507) ; Major State Basic Research Program of the People's Republic of China(2006CB403507)
源URL[http://ir.iggcas.ac.cn/handle/132A11/69379]  
专题中国科学院地质与地球物理研究所
通讯作者Zhang, Lian-chang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Lian-chang,Zhou, Xin-hua,Ying, Ji-feng,et al. Geochemistry and Sr-Nd-Pb-Hf isotopes of Early Cretaceous basalts from the Great Xinggan Range, NE China: Implications for their origin and mantle source characteristics[J]. CHEMICAL GEOLOGY,2008,256(1-2):12-23.
APA Zhang, Lian-chang.,Zhou, Xin-hua.,Ying, Ji-feng.,Wang, Fei.,Guo, Feng.,...&Chen, Zhi-guang.(2008).Geochemistry and Sr-Nd-Pb-Hf isotopes of Early Cretaceous basalts from the Great Xinggan Range, NE China: Implications for their origin and mantle source characteristics.CHEMICAL GEOLOGY,256(1-2),12-23.
MLA Zhang, Lian-chang,et al."Geochemistry and Sr-Nd-Pb-Hf isotopes of Early Cretaceous basalts from the Great Xinggan Range, NE China: Implications for their origin and mantle source characteristics".CHEMICAL GEOLOGY 256.1-2(2008):12-23.

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