| Syn-collisional adakitic granodiorites formed by fractional crystallization: Insights from their enclosed mafic magmatic enclaves (MMEs) in the Qumushan pluton, North Qilian Orogen at the northern margin of the Tibetan Plateau | |
Chen, Shuo1,2,3; Niu, Yaoling1,2,4; Li, Jiyong1,2,3 ; Sun, Wenli1; Zhang, Yu5; Hu, Yan1,2; Shao, Fengli1,2,3
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| 2016-04-01 | |
| 发表期刊 | LITHOS
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| 卷号 | 248页码:455-468 |
| 文章类型 | Article |
| 摘要 | The Qumushan (QMS) syn-collisional granodiorite, which is located in the eastern section of the North Qilian Orogen at the northern margin of the Greater Tibetan Plateau, has typical adakitic characteristics and also contains abundant mafic magmatic enclaves (MMEs). This recognition offers an unprecedented insight into the petrogenesis of both the adakitic host granodiorite and the enclosed MMEs. The MMEs and their host granodiorites share many characteristics in common, including identical crystallization age (similar to 430 Ma), same mineralogy, similar mineral chemistry and whole-rock isotopic compositions, indicating their genetic link. The MMEs are most consistent with being of cumulate origin formed at earlier stages of the same magmatic system that produced the QMS adakitic granodiorite. Subsequent replenishment of adakitic magmas could have disturbed the cumulate piles as "MMEs" dispersed in the adakitic granodiorite host during emplacement. The geochemical data and petrogenetic modeling of trace elements suggest that the QMS adakitic host granodiorite is most consistent with fractional crystallization dominated by the mineral assemblage of the MMEs. The parental magma for the QMS granodiorite is best explained as resulting from partial melting of the ocean crust together with recycled terrigenous sediments during continental collision, which may have also experienced interaction with mantle peridotite during ascent. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词 | Adakitic Rocks Mafic Magmatic Enclaves Cumulate Syn-collisional Granodiorite North Qilian Orogen |
| DOI | 10.1016/j.lithos.2016.01.033 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373863900031 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/126266 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England 5.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Shuo,Niu, Yaoling,Li, Jiyong,et al. Syn-collisional adakitic granodiorites formed by fractional crystallization: Insights from their enclosed mafic magmatic enclaves (MMEs) in the Qumushan pluton, North Qilian Orogen at the northern margin of the Tibetan Plateau[J]. LITHOS,2016,248:455-468. |
| APA | Chen, Shuo.,Niu, Yaoling.,Li, Jiyong.,Sun, Wenli.,Zhang, Yu.,...&Shao, Fengli.(2016).Syn-collisional adakitic granodiorites formed by fractional crystallization: Insights from their enclosed mafic magmatic enclaves (MMEs) in the Qumushan pluton, North Qilian Orogen at the northern margin of the Tibetan Plateau.LITHOS,248,455-468. |
| MLA | Chen, Shuo,et al."Syn-collisional adakitic granodiorites formed by fractional crystallization: Insights from their enclosed mafic magmatic enclaves (MMEs) in the Qumushan pluton, North Qilian Orogen at the northern margin of the Tibetan Plateau".LITHOS 248(2016):455-468. |
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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 | ||
| Syn-collisional adak（4037KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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