The factors affecting mineralization potential of arc magma: Insights from silicate melt inclusions and zircon composition of igneous lava at Eastern Taiwan Island
文献类型：期刊论文
| 作者 | Li, Jianping5,6; Zhang, Shitao4; Chu, Gaobin3; Chen, Huayong1,2,6
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| 刊名 | SCIENCE CHINA-EARTH SCIENCES
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| 出版日期 | 2025-03-01 |
| 卷号 | 68期号:3页码:768-780 |
| 关键词 | Silicate melt inclusions Zircon Redox state Arc magma Cu-(Au) mineralization potential |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-024-1491-1 |
| 英文摘要 | Subduction-related Cu-(Au) deposits which represent giant geochemical anomalies of metals and S in the upper crust are commonly associated with arc magmas. However, the fundamental differences between barren and fertile magma producing these deposits still remain highly controversial. In this study, we report the chemical compositions of zircon and silicate melt inclusions (SMIs) from barren arc lavas at eastern Taiwan Island aiming to increase our knowledge on the factors that affect the mineralization potential of arc magma systems. The zircon U-Pb dating shows the magmatism occurred at similar to 0.7 Ma and the andesitic lava formed at similar to 900-950 degrees C with a reduced magmatic environment. The plagioclase-hosted SMIs show an andesitic melt composition and variable Cu content features. The calculated H2O content of parental melt is similar to 3-4 wt.%. The evidence presented above suggests that oxidation state (fO(2)) and H2O content are probably the key controls of Cu-(Au) fertility of arc magmas. We interpret that a reduced and relatively dry magma may be a potential hinderance to cause the absence of porphyry Cu deposits at the eastern Taiwan Island. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001426222500001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82711]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Chen, Huayong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 3.Guangzhou Tuoyan Analyt Technol Co Ltd, Guangzhou 510600, Peoples R China 4.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China 5.McGill Univ, Dept Earth & Planetary Sci, Montreal, PQ H3A 0E8, Canada 6.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jianping,Zhang, Shitao,Chu, Gaobin,et al. The factors affecting mineralization potential of arc magma: Insights from silicate melt inclusions and zircon composition of igneous lava at Eastern Taiwan Island[J]. SCIENCE CHINA-EARTH SCIENCES,2025,68(3):768-780. |
| APA | Li, Jianping,Zhang, Shitao,Chu, Gaobin,&Chen, Huayong.(2025).The factors affecting mineralization potential of arc magma: Insights from silicate melt inclusions and zircon composition of igneous lava at Eastern Taiwan Island.SCIENCE CHINA-EARTH SCIENCES,68(3),768-780. |
| MLA | Li, Jianping,et al."The factors affecting mineralization potential of arc magma: Insights from silicate melt inclusions and zircon composition of igneous lava at Eastern Taiwan Island".SCIENCE CHINA-EARTH SCIENCES 68.3(2025):768-780. |
入库方式： OAI收割
来源：广州地球化学研究所
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