| Geochemical and isotopic compositions of East Rift lavas from the Manus Basin: Implications for the origin of subduction components | |
| Wang, Xiong1,2; Huang, Peng1,3,4; Huang, Haijun3; Hu, Ningjing5 | |
| 2020-05-29 | |
| 发表期刊 | GEOLOGICAL JOURNAL
 |
| ISSN | 0072-1050 |
| 页码 | 14 |
| 通讯作者 | Huang, Peng(huangpeng@ms.qdio.ac.cn) |
| 摘要 | Many recent studies have concluded that subduction components exist in the mantle source of the Manus back-arc basin lavas; however, the origin of these components remains an ongoing controversy. The East Rift at the eastern end of the Manus Basin is ideal for investigating the subduction components because of its unique geographic location. In this study, 10 samples from the East Rift were selected for geochemical and isotopic analysis. The results show that these samples can be compositionally divided into basaltic andesite and dacite belonging to the medium-K calc-alkaline series. Furthermore, the parental magma experienced fractional crystallization. The analyses also indicate that the subduction components came from the Solomon Plate and consist of altered oceanic crust (AOC) and sediments. The AOC materials entered the mantle source through fluids, while the sedimentary materials were transferred as melts. Assuming 5% partial melting of the sediments and 1% fluid production from the AOC in a modal melting process of an eclogitic source, the results of endmember modelling of Pb isotopic data reveal that the subduction components beneath the East Rift area consist of approximately 60-65% AOC fluids and 35-40% sediment melts and that the source contains approximately 1-5% subduction components. |
| 关键词 | East Rift isotopic endmember modelling Manus Basin Solomon Plate subduction component |
| DOI | 10.1002/gj.3842 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Basic Research Program of China[2013CB429702] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11030302] ; National Natural Science Foundation of China[41576055] ; National Natural Science Foundation of China[40606021] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000535973900001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/167528 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Huang, Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Minist Nat Resources, Key Lab Marine Sedimentary & Environm Geol, Inst Oceanog 1, Qingdao, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 推荐引用方式 GB/T 7714 | Wang, Xiong,Huang, Peng,Huang, Haijun,et al. Geochemical and isotopic compositions of East Rift lavas from the Manus Basin: Implications for the origin of subduction components[J]. GEOLOGICAL JOURNAL,2020:14. |
| APA | Wang, Xiong,Huang, Peng,Huang, Haijun,&Hu, Ningjing.(2020).Geochemical and isotopic compositions of East Rift lavas from the Manus Basin: Implications for the origin of subduction components.GEOLOGICAL JOURNAL,14. |
| MLA | Wang, Xiong,et al."Geochemical and isotopic compositions of East Rift lavas from the Manus Basin: Implications for the origin of subduction components".GEOLOGICAL JOURNAL (2020):14. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Geochemical and isot（2376KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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