Magma Origin and Evolution of Tengchong Cenozoic Volcanic Rocks from West Yunnan, China: Evidence from Whole Rock Geochemistry and Nd-Sr-Pb Isotopes
文献类型：期刊论文
| 作者 | Li Dapeng1; Luo Zhaohua1; Liu Jiaqi2; Chen Yuelong1; Jin Ye3 |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 86期号:4页码:867-878 |
| 关键词 | Cenozoic volcanism Nd-Sr-Pb isotopes geochemistry Tengchong |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/j.1755-6724.2012.00712.x |
| 文献子类 | Article |
| 英文摘要 | Tengchong Cenozoic volcanics that have record key information on the tectonic evolution and mantle features of the southeast margin of the Tibetan Plateau are of great importance because of its unique eruption history spanning the entire Quaternary period. Magma origin and evolution of Tengchong Cenozoic volcanic rocks were studied on the basis of Nd-Sr-Pb isotope and major and trace element data from different eruptions in the Ma'anshan area. Different samples within one eruption show relative identical lithologies, chemical and isotopic compositions. However, the geochemical features for the five eruptions are distinct from each other. These volcanic rocks show low Mg# values (<45), moderate to high fractionation of LREEs and HREEs, and enrichment of Pb and Ba and depletion of Nb. Tengchong Cenozoic volcanic rocks were derived from an enriched mantle based on Nd-Sr-Pb isotopic studies. And lines of evidence show that crustal contamination should be involved before the eruption of different periods of Tengchong Cenozoic volcanic rocks. Older subducted components may be responsible for adakite recycling at various stages of evolution, which results in the origin of the enriched mantle source magma accounting for the isotopic features of Tengchong Cenozoic volcanic rocks. Segregated primitive magma pulsating injected into magma chamber, fractional crystallized and contaminated with crust component. Finally, magmas with distinct chemical and isotopic compositions for each eruption formed. The extension of the northeast segment of the Yingjiang tectonic belt triggered the pulsating eruption of the Cenozoic volcanics in the Tengchong area. |
| WOS关键词 | PROVINCE ; PETROGENESIS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000307378800007 |
| 出版者 | WILEY-BLACKWELL |
| 资助机构 | Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Ministry of Education of China(20110022120003) ; Ministry of Education of China(20110022120003) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Ministry of Education of China(20110022120003) ; Ministry of Education of China(20110022120003) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Ministry of Education of China(20110022120003) ; Ministry of Education of China(20110022120003) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Chinese Ministry of Science and Technology(Sinoprobe-05-03) ; Ministry of Education of China(20110022120003) ; Ministry of Education of China(20110022120003) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) ; State Key Laboratory of Geological Processes and Mineral Resources(GPMR2011) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84196]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li Dapeng |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci & Resources, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.China Univ Geosci, Sch Ocean Sci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Dapeng,Luo Zhaohua,Liu Jiaqi,et al. Magma Origin and Evolution of Tengchong Cenozoic Volcanic Rocks from West Yunnan, China: Evidence from Whole Rock Geochemistry and Nd-Sr-Pb Isotopes[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2012,86(4):867-878. |
| APA | Li Dapeng,Luo Zhaohua,Liu Jiaqi,Chen Yuelong,&Jin Ye.(2012).Magma Origin and Evolution of Tengchong Cenozoic Volcanic Rocks from West Yunnan, China: Evidence from Whole Rock Geochemistry and Nd-Sr-Pb Isotopes.ACTA GEOLOGICA SINICA-ENGLISH EDITION,86(4),867-878. |
| MLA | Li Dapeng,et al."Magma Origin and Evolution of Tengchong Cenozoic Volcanic Rocks from West Yunnan, China: Evidence from Whole Rock Geochemistry and Nd-Sr-Pb Isotopes".ACTA GEOLOGICA SINICA-ENGLISH EDITION 86.4(2012):867-878. |
入库方式： OAI收割
来源：地质与地球物理研究所
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