Petrogenesis and geological implications of the Changanshan diorite and rhyolite in Minhou area, Fuzhou
文献类型：期刊论文
| 作者 | Wang LiYuan1; Peng XiangDong1; HUANG LiangLiang2; Lin MuSen1; Zhang WenHui1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2020 |
| 卷号 | 36期号:6页码:1833-1849 |
| 关键词 | Rhyolite Diorite Petrogenesis Hf isotope Fuzhou |
| ISSN号 | 1000-0569 |
| DOI | 10.18654/1000-0569/2020.06.12 |
| 英文摘要 | The Cretaceous igneous rocks experienced a strong crust-mantle interaction and widely developed along the coast of Fujian Province, but the details of this tectonic-magmatic event are still controversial. We report detailed petrography, geochronology, and geochemistry of the Changanshan diorite and rhyolite in Fuzhou University, which provided new evidence for the correlation between crust-mantle interaction. Zircon U-Pb geochronology of diorites and rhyolites yield ages of 107. 2 +/- 0. 3Ma and ca 98. 6Ma, respectively. It indicated that they were formed in the late Early Cretaceous to early Late Cretaceous. The zircon epsilon(Hf) (t) values in the diorites and rhyolites are -2. 1 similar to + 0. 5 and -2. 7 similar to + 1. 1 , respectively. The rhyolites are characterized by rich silicon and alkali, poor calcium and magnesium, high fractionation indexes, and thus belonging to weakly peraluminous rocks. The rhyolites samples show prominent pattern of relative enrichment in LREE, and strong negative Eu anomalies, similar chemically to typical A-type rhyolite. The magma source of the rhyolites was likely produced by interaction of asthenosphere melts with subduction-influenced enriched mantle wedge, and experienced fractional crystallization in the crust. The petrogenesis of diorite may be the mixing of water rich mantle magma and felsic crust magma produced by mantle magma underplating. In combination with the regional tectonic setting, these rocks were probablely formed in continental arc setting related to the subduction of oceanic crust. |
| WOS关键词 | A-TYPE GRANITES ; SE CHINA INSIGHTS ; VOLCANIC-ROCKS ; COASTAL AREA ; GEOCHEMICAL CONSTRAINTS ; TECTONIC IMPLICATIONS ; PLATE SUBDUCTION ; FUJIAN PROVINCE ; EVOLUTION ; CRUST |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000562482600012 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97650]  |
| 专题 | 地质与地球物理研究所_科技支撑系统 |
| 通讯作者 | Wang LiYuan |
| 作者单位 | 1.Fuzhou Univ, Zijin Min Coll, Fuzhou 350116, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang LiYuan,Peng XiangDong,HUANG LiangLiang,et al. Petrogenesis and geological implications of the Changanshan diorite and rhyolite in Minhou area, Fuzhou[J]. ACTA PETROLOGICA SINICA,2020,36(6):1833-1849. |
| APA | Wang LiYuan,Peng XiangDong,HUANG LiangLiang,Lin MuSen,&Zhang WenHui.(2020).Petrogenesis and geological implications of the Changanshan diorite and rhyolite in Minhou area, Fuzhou.ACTA PETROLOGICA SINICA,36(6),1833-1849. |
| MLA | Wang LiYuan,et al."Petrogenesis and geological implications of the Changanshan diorite and rhyolite in Minhou area, Fuzhou".ACTA PETROLOGICA SINICA 36.6(2020):1833-1849. |
入库方式： OAI收割
来源：地质与地球物理研究所
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