中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Emplacement age of the Raohe Complex in eastern Heilongjiang Province and the tectonic evolution of the eastern part of Northeastern China.

文献类型:期刊论文

作者Cheng, RY; Wu, FY; Ge, WC; Sun, DY; Liu, XM; Yang, JH
刊名ACTA PETROLOGICA SINICA
出版日期2006-02-01
卷号22期号:2页码:353-376
关键词Raohe S-type granite zircon U-Pb dating Lu-Hf isotope
ISSN号1000-0569
文献子类Article
英文摘要Raohe Complex, located in the eastern Heilongjiang Province and composed of deep oceanic sediments and mafic igneous rocks, was considered as slice of oceanic crust and intruded by Hamahe and Taipingcun granites. Zircon U-Pb dating indicated that both of plutons were emplaced in Early Cretaceous, with the Hamahe pluton formed at three individual stages (131Ma, 124Ma and 115Ma, respectively) and the Taipingcun pluton at 111 similar to 114Ma. However, the gabbro in Raohe Complex was formed at 166 +/- 1Ma, and the latest radiolarian in the deep oceanic sediments is about 160 similar to 150Ma. Therefore, it is concluded that the emplacement of the Raohe Complex took place at 150 similar to 131Ma of Late Jurassic-Early Cretaceous, indicating that there existed the Pacific plate subduction and striking-slip in this area before and during Late Jurassic-Early Cretaceous. Petrological studies indicate that both plutons contained magmatic cordierites and show peraluninous characteristics, suggesting their S-type affinity derived from partial melting of the sedimentary rocks. Hf isotopic analyses show that the zircons from plutons have,e high Hf-116/Hf-177 ratios and positive epsilon(Hf)(t) values, and the Hf isotope model age with the felsic crust rocks is 500 similar to 780Ma, which indicates that their protolith Should be the juvenile crust formed in Neo Proterozoic-Phanerozoic. Therefore, it is Suggested that there existed significant crust uplift and weathering before Late Jurassic-Early Cretaceous in the area.
WOS关键词FAR-EAST ; CRUSTAL GROWTH ; LU-HF ; U-PB ; GRANITES ; JAPAN ; ACCRETION ; TERRANE ; GEOCHEMISTRY ; CONSTRAINTS
WOS研究方向Geology
语种英语
WOS记录号WOS:000236152700009
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/66868]  
专题中国科学院地质与地球物理研究所
通讯作者Cheng, RY
作者单位1.Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.NW Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China
推荐引用方式
GB/T 7714
Cheng, RY,Wu, FY,Ge, WC,et al. Emplacement age of the Raohe Complex in eastern Heilongjiang Province and the tectonic evolution of the eastern part of Northeastern China.[J]. ACTA PETROLOGICA SINICA,2006,22(2):353-376.
APA Cheng, RY,Wu, FY,Ge, WC,Sun, DY,Liu, XM,&Yang, JH.(2006).Emplacement age of the Raohe Complex in eastern Heilongjiang Province and the tectonic evolution of the eastern part of Northeastern China..ACTA PETROLOGICA SINICA,22(2),353-376.
MLA Cheng, RY,et al."Emplacement age of the Raohe Complex in eastern Heilongjiang Province and the tectonic evolution of the eastern part of Northeastern China.".ACTA PETROLOGICA SINICA 22.2(2006):353-376.

入库方式: OAI收割

来源:地质与地球物理研究所

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