Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressureeclogites record high-temperature overprint and partial melting during slabexhumation
文献类型：期刊论文
| 作者 | Tang, Pan3; Guo, Shun1,2 |
| 刊名 | EUROPEAN JOURNAL OF MINERALOGY
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 35期号:4页码:569-588 |
| ISSN号 | 0935-1221 |
| DOI | 10.5194/ejm-35-569-2023 |
| 英文摘要 | Corundum- and spinel-bearing symplectites after muscovite were found in ultrahigh-pressure (UHP) eclogites from the Dabie terrane, China. Three types of symplectites were recognized based on their mineral assemblages: (1) symplectitic intergrowths of corundum + plagioclase + biotite after phengite (CPB), (2) symplectitic intergrowths of spinel + plagioclase + biotite after phengite (SPB), and (3) symplectitic intergrowths of spinel + plagioclase after paragonite (SP). The microtextures and mineral assemblages of the symplectites, in combination with the results of thermodynamic modeling on local regions, indicate that these symplectites formed by the breakdown of phengite and paragonite during the granulite-facies metamorphic overprint (770-850 & LCIRC;C) of the eclogite at pressures of 0.8-0.9 GPa. Dehydration partial melting reactions occurred during the breakdown of muscovite, which leads to the formation of thin plagioclase films (silicate melts) along grain (garnet, rutile, quartz) boundaries. Mass balance calculations indicate that the development of CPB and SPB symplectites after phengite requires the introduction of Al, Ca, Na, and Fe and loss of Si, Mg, and K. However, the formation of SP symplectites after paragonite requires the input of Mg, Ca, and Fe and removal of Si, Al, and Na. By summarizing the occurrence and growth mechanism of corundum- and spinel-bearing symplectites in global UHP terranes, we find that such symplectites can form by both the subsolidus replacement of an Al-rich anhydrous mineral (kyanite) and the dehydration melting of an Al-rich hydrous phase during high-temperature metamorphism. This study reveals that muscovite-bearing eclogites may experience multiple episodes of partial melting during the slab exhumation, not only at the high-pressure (HP) exhumation stage but also at the lower-pressure metamorphic overprinting stage. Kyanite is a reaction product during the HP partial melting, whereas the low-pressure (LP) melting will consume kyanite. We propose that the occurrence of corundum- and spinel-bearing symplectites after muscovite in eclogites is a potential mineralogical indicator of LP melting in exhumed slabs. |
| WOS关键词 | P-T EVOLUTION ; MULTIPHASE SOLID INCLUSIONS ; PRESSURE METAMORPHIC ROCKS ; CONTINENTAL SUBDUCTION ; KYANITE ECLOGITES ; MULTISTAGE EXHUMATION ; THERMODYNAMIC MODEL ; REACTION TEXTURES ; ELEMENT TRANSFER ; AQUEOUS FLUIDS |
| 资助项目 | National Science Foundation of China[42172063] ; National Science Foundation of China[41922013] ; Key Research Program of the Institute of Geology amp; Geophysics, CAS[IGGCAS-202204] ; Youth Innovation Promotion Association, CAS[Y2021026] ; State Key Laboratory of Lithospheric Evolution[SKL-Z202002] ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology[SJXTBS2115] ; Basic Research Program Project - Youth Science and Technology Talent Project[KC22032] |
| WOS研究方向 | Mineralogy |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:001041011400001 |
| 资助机构 | National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Key Research Program of the Institute of Geology amp; Geophysics, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Jiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project ; Basic Research Program Project - Youth Science and Technology Talent Project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111327]  |
| 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 | Guo, Shun |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 3.Jiangsu Vocat Inst Architectural Technol, Sch Construct Management, Xuzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Pan,Guo, Shun. Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressureeclogites record high-temperature overprint and partial melting during slabexhumation[J]. EUROPEAN JOURNAL OF MINERALOGY,2023,35(4):569-588. |
| APA | Tang, Pan,&Guo, Shun.(2023).Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressureeclogites record high-temperature overprint and partial melting during slabexhumation.EUROPEAN JOURNAL OF MINERALOGY,35(4),569-588. |
| MLA | Tang, Pan,et al."Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressureeclogites record high-temperature overprint and partial melting during slabexhumation".EUROPEAN JOURNAL OF MINERALOGY 35.4(2023):569-588. |
入库方式： OAI收割
来源：地质与地球物理研究所
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