Generation of Archaean TTG Gneisses Through Amphibole-Dominated Fractionation
文献类型：期刊论文
| 作者 | Liou, Peng1; Guo, Jinghui1,2 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 124期号:4页码:3605-3619 |
| 关键词 | Archean TTG North China Craton fractional crystallization subduction zone amphibole |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2018JB017024 |
| 英文摘要 | The early continental crust is characterized by the tonalite-trondhjemite-granodiorite gneisses (TTG) of Archaean terrains. There is a consensus that TTGs were formed by partial melting of hydrated mafic rocks. High-pressure melts tend to be more trondhjemitic with higher Sr/Y ratios due to the presence of garnet and absence of plagioclase, whereas low-pressure melts are more tonalitic with relatively lower Sr/Y ratios. Here we present a geochemical study of diorites, TTGs, and hornblendites from Eastern Hebei, North China Craton. Geochemical analyses show that dioritic parental magmas may evolve to tonalites and trondhjemites through a maximum of 27% fractional crystallization of amphibole and apatite. We also identified the cumulate apatite-bearing hornblendite, a predicted solid fractionate and chemical complement to the TTGs. Mixing of the trondhjemite and the hornblendite can generate similar chemical compositions to the diorites in this region. The mixing trends are consistent with those predicted for fractional crystallization. Based on these analyses, we conclude that these trondhjemites and tonalites can be formed by fractional crystallization of amphiboles and accessory minerals from the calc-alkaline diorites. Partial melting is not a unique solution to the problem of how to form the Archean TTG gneisses and how to make an Archean continent. Thick crust or lithosphere (in the garnet stability field) is also not a unique requirement. Amphibole fractionation may also cause an abrupt increase of Eu/Eu* of Archean granitoids at 3.2-3.0Ga, which may be linked to a transition period in tectonic style at 3Ga in Earth's evolution. |
| WOS关键词 | NORTH CHINA CRATON ; EASTERN HEBEI PROVINCE ; EARLY CONTINENTAL-CRUST ; IN-SITU ANALYSIS ; LU-HF ISOTOPES ; U-PB ISOTOPE ; TRACE-ELEMENT ; SM-ND ; NEOARCHEAN SUBDUCTION ; ARC MAGMAS |
| 资助项目 | Key Research Project of Frontier Science of the Chinese Academy of Sciences[QYZDY-SSW-DQC017] ; National Natural Science Foundation of China[41890834] ; National Natural Science Foundation of China[41890832] ; China Postdoctoral Science Foundation[2018M640180] ; National Natural Science Foundation of China for Young Scientists[41802202] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000468912000021 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists ; National Natural Science Foundation of China for Young Scientists |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/92110]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Liou, Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liou, Peng,Guo, Jinghui. Generation of Archaean TTG Gneisses Through Amphibole-Dominated Fractionation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(4):3605-3619. |
| APA | Liou, Peng,&Guo, Jinghui.(2019).Generation of Archaean TTG Gneisses Through Amphibole-Dominated Fractionation.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(4),3605-3619. |
| MLA | Liou, Peng,et al."Generation of Archaean TTG Gneisses Through Amphibole-Dominated Fractionation".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.4(2019):3605-3619. |
入库方式： OAI收割
来源：地质与地球物理研究所
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