Subduction-Induced Upwelling of a Hydrous Transition Zone: Implications for the Cenozoic Magmatism in Northeast China
文献类型：期刊论文
| 作者 | Chen, Lin2; Faccenda, Manuele1 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 124期号:11页码:11489-11504 |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2019JB018133 |
| 英文摘要 | The widespread Cenozoic basalts in northeast China are commonly thought to be related to the stagnation of the Pacific slab in the transition zone and its deep dehydration. By incorporating experimentally constrained phase diagrams of hydrous mantle and melting conditions at high pressures into two-dimensional petrological-thermomechanical models, here we model the interaction of a subducting slab with a hydrous transition zone (TZ) and examine its potential role in generating intracontinental magmatism. The model results show that descending of the oceanic slab first forces up the material in the TZ. Depending on the water content in the TZ, the upwelling hydrous material may undergo dehydration melting above the TZ. As a large slab stagnates within the TZ owing to the lower mantle resistance, the deep melting migrates progressively toward the overriding continent's interior, generating plutonic/volcanic rocks in the continental crust far away from the trench. The amount of deep melting and surface magmatism is obviously related to the amount of water stored in the TZ. In contrast, the water stored in the cold core of the subducting slab and released in the transition zone does not generate melting as it is entirely absorbed by mantle transition zone nominally anhydrous minerals. Comparing the model results with the distribution of the late Cenozoic basalts in northeast China, we suggest that the intracontinental magmatism there was likely caused by deep dehydration melting induced by the slab-transition zone interaction. |
| WOS关键词 | PHASE-RELATIONS ; EASTERN CHINA ; ELECTRICAL-CONDUCTIVITY ; INTRAPLATE VOLCANISM ; STAGNANT SLAB ; OCEANIC-CRUST ; PACIFIC SLAB ; MANTLE ; WATER ; BASALTS |
| 资助项目 | Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18030105] ; National Key Research and Development Project[2016YFC0600406] ; ERC StG NEWTON[758199] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000505543800047 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development Project ; National Key Research and Development Project ; ERC StG NEWTON ; ERC StG NEWTON ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development Project ; National Key Research and Development Project ; ERC StG NEWTON ; ERC StG NEWTON ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development Project ; National Key Research and Development Project ; ERC StG NEWTON ; ERC StG NEWTON ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Key Research and Development Project ; National Key Research and Development Project ; ERC StG NEWTON ; ERC StG NEWTON |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95912]  |
| 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 | Faccenda, Manuele |
| 作者单位 | 1.Univ Padua, Dipartimento Geosci, Padua, Italy 2.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Lin,Faccenda, Manuele. Subduction-Induced Upwelling of a Hydrous Transition Zone: Implications for the Cenozoic Magmatism in Northeast China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(11):11489-11504. |
| APA | Chen, Lin,&Faccenda, Manuele.(2019).Subduction-Induced Upwelling of a Hydrous Transition Zone: Implications for the Cenozoic Magmatism in Northeast China.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(11),11489-11504. |
| MLA | Chen, Lin,et al."Subduction-Induced Upwelling of a Hydrous Transition Zone: Implications for the Cenozoic Magmatism in Northeast China".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.11(2019):11489-11504. |
入库方式： OAI收割
来源：地质与地球物理研究所
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