Garnetite and Pyroxenite in the Mantle Wedge Formed by Slab-Mantle Interactions at Different Melt/Rock Ratios
文献类型：期刊论文
| 作者 | Su, Bin1,2; Chen, Yi1,2,3,4; Guo, Shun1,2,3; Chen, Si1,2; Li, Yi-Bing1,2 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 124期号:7页码:6504-6522 |
| 关键词 | orogenic peridotite garnet pyroxenite melt rock ratio high-Mg arc magma mantle heterogeneity |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2019JB017347 |
| 英文摘要 | Mantle wedge hybridization by crust-derived melt is a crucial mechanism responsible for arc lavas. However, how the melt-rock reactions proceed in the mantle wedge and affect melt compositions is poorly understood. Garnet peridotites from Jiangzhuang in the Sulu orogen (eastern China) host garnetite and pyroxenite veins formed by slab-mantle interactions at different melt/rock ratios. The Jiangzhuang peridotites consist mainly of garnet lherzolites and minor harzburgites and represent a fragment of the mantle wedge influenced by ultrahigh-pressure metamorphism (5.2-6.1 GPa) in the subduction channel. Petrography, major and trace element geochemistry, and in situ clinopyroxene Sr isotope values of the garnetite and pyroxenite veins reveal their derivation from interactions between mantle wedge peridotites and deeply subducted crust-derived melts. The two veins share a common metamorphic and metasomatic history and have similar mineral assemblages and compositions, enriched isotope signatures, and formation P-T conditions, indicating the same source for their reacting melts. The different mineral proportions and microtextures between the garnetite and pyroxenite veins are ascribed to different melt/rock ratios. The garnetite vein formed at relatively high melt/rock ratios (>1:1), which would likely produce hybrid slab melts with Mg-rich, high-silica adakitic signatures. In contrast, the pyroxenite vein formed at low melt/rock ratios (<1:1), and the expected hybrid slab melts would evolve into high-Mg andesites. Moreover, recycled heterogeneous garnetite and pyroxenite could contribute to the mantle sources of intraplate magmas. Therefore, slab-mantle interactions at different melt/rock ratios could be an important crustal input to lithological and geochemical heterogeneities in the mantle. |
| WOS关键词 | SULU UHP TERRANE ; ULTRAHIGH-PRESSURE METAMORPHISM ; PARTIAL MELTING EXPERIMENTS ; TRACE-ELEMENT SIGNATURE ; SETOUCHI VOLCANIC BELT ; HIGH-MG ANDESITES ; LITHOSPHERIC MANTLE ; PHASE-RELATIONS ; RONDA PERIDOTITE ; OCEANIC-CRUST |
| 资助项目 | National Basic Research Program of China (973 program)[2015CB856103] ; National Science Foundation of China[41490614] ; National Science Foundation of China[41802059] ; National Science Foundation of China[41822202] ; Youth Innovation Promotion Association CAS[2017090] ; National Postdoctoral Program for Innovative Talents[BX201700239] ; China Postdoctoral Science Foundation[2017M620065] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000481819500017 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Basic Research Program of China (973 program) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93359]  |
| 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 | Chen, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Inst Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Bin,Chen, Yi,Guo, Shun,et al. Garnetite and Pyroxenite in the Mantle Wedge Formed by Slab-Mantle Interactions at Different Melt/Rock Ratios[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2019,124(7):6504-6522. |
| APA | Su, Bin,Chen, Yi,Guo, Shun,Chen, Si,&Li, Yi-Bing.(2019).Garnetite and Pyroxenite in the Mantle Wedge Formed by Slab-Mantle Interactions at Different Melt/Rock Ratios.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,124(7),6504-6522. |
| MLA | Su, Bin,et al."Garnetite and Pyroxenite in the Mantle Wedge Formed by Slab-Mantle Interactions at Different Melt/Rock Ratios".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 124.7(2019):6504-6522. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。