Geochemical and Sr-Nd-Hf-O-C isotopic constraints on the origin of the Neoproterozoic Qieganbulake ultramafic-carbonatite complex from the Tarim Block, Northwest China
文献类型：期刊论文
| 作者 | Ye, Hai-Min1,2; Li, Xian-Hua1; Lan, Zhong-Wu1 |
| 刊名 | LITHOS
 |
| 出版日期 | 2013-12-01 |
| 卷号 | 182页码:150-164 |
| 关键词 | Qieganbulake ultramafic-carbonatite complex Tarim NW China Sr-Nd-Hf-O-C isotopes Liquid immiscibility Rodinian mantle plume |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2013.10.002 |
| 文献子类 | Article |
| 英文摘要 | The Qjeganbulake ultramafic-carbonatite complex located within the northeastern margin of the Tarim Block of Northwest China hosts the world's second largest vermiculite deposit. Field observations, radiometric dating results and Sr-Nd-Hf isotopes reveal that the parental magmas of the carbonatite and ultramafic rocks are cogenetic and formed synchronously at similar to 810 Ma. They are characterized by unusually enriched Sr-Nd-Hf isotopic compositions (I-sr = 0.70570-0.70762, epsilon(Nd)(t) = -7.7 to - 12.5, and epsilon(Hf)(t) = 6.7 to - 12.9), indicating that the parent magmas were derived mainly from a subcontinental mantle source that had been metasomatised by subduction processes. Higher delta C-13 (- 3.65 to - 4.11%.) values compared to primary magmatic carbonate (- 8 to - 4%.) argue for incorporation of recycled inorganic carbon derived from subducted oceanic crusts. The carbonatites and clinopyroxenties define two distinct differentiation trends, which suggest that liquid immiscibility rather than crystal fractionation controlled the petrogenetic process. Pyroxenities have clearly higher apatite I-Sr and delta O-18 values than coexisting carbonatites, indicating involvement of crustal components during their emplacement. The Qieganbulake complex is closely associated in time and space with the mid-Neoproterozoic Rodinia breakup event triggered by mantle plume activities in the Tarim Block. Therefore, the mantle plume likely induced partial malting of, and likely mixed with, the metasomatized subcontinental lithospheric mantle, to form the Qieganbulake ultramafic-carbonatite complex. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS关键词 | EAST-AFRICAN CARBONATITES ; PB ZIRCON GEOCHRONOLOGY ; BASIN NW CHINA ; U-PB ; KOLA-PENINSULA ; LU-HF ; MANTLE PLUME ; SOUTH-AFRICA ; GEODYNAMIC IMPLICATIONS ; GENETIC-RELATIONSHIPS |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000329954100011 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; National Natural Science Foundation of China(40703009) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) ; Chinese Ministry of Science and Technology(2013CB835005) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86996]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, Xian-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.China Geol Survey, Nanjing Inst Geol & Mineral Resources, Nanjing 210016, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Hai-Min,Li, Xian-Hua,Lan, Zhong-Wu. Geochemical and Sr-Nd-Hf-O-C isotopic constraints on the origin of the Neoproterozoic Qieganbulake ultramafic-carbonatite complex from the Tarim Block, Northwest China[J]. LITHOS,2013,182:150-164. |
| APA | Ye, Hai-Min,Li, Xian-Hua,&Lan, Zhong-Wu.(2013).Geochemical and Sr-Nd-Hf-O-C isotopic constraints on the origin of the Neoproterozoic Qieganbulake ultramafic-carbonatite complex from the Tarim Block, Northwest China.LITHOS,182,150-164. |
| MLA | Ye, Hai-Min,et al."Geochemical and Sr-Nd-Hf-O-C isotopic constraints on the origin of the Neoproterozoic Qieganbulake ultramafic-carbonatite complex from the Tarim Block, Northwest China".LITHOS 182(2013):150-164. |
入库方式： OAI收割
来源：地质与地球物理研究所
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