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Iron-Copper-Zinc Isotopic Compositions of Andesites from the Kueishantao Hydrothermal Field off Northeastern Taiwan

文献类型：期刊论文

作者Zeng, Zhigang1,2,5; Li, Xiaohui1,2; Chen, Shuai1,3; Zhang, Yuxiang1; Chen, Zuxing1; Chen, Chen-Tung Arthur4
刊名SUSTAINABILITY
出版日期2022
卷号14期号:1页码:13
关键词Fe-Cu-Zn isotope seafloor andesite Kueishantao hydrothermal field
DOI10.3390/su14010359
通讯作者Zeng, Zhigang(zgzeng@ms.qdio.ac.cn)
英文摘要The studies of iron (Fe), copper (Cu), and zinc (Zn) isotopic compositions in seafloor andesites are helpful in understanding the metal stable isotope fractionation during magma evolution. Here, the Fe, Cu, and Zn isotopic compositions of andesites from the Kueishantao hydrothermal field (KHF) off northeastern Taiwan, west Pacific, have been studied. The majority of delta Fe-56 values (+0.02 parts per thousand to +0.11 parts per thousand) in the KHF andesites are consistent with those of MORBs (mid-ocean ridge basalts). This suggests that the Fe in the KHF andesites is mainly from a MORB-type mantle. The Fe-Cu-Zn isotopic compositions (delta Fe-56 +0.22 parts per thousand, delta Cu-65 +0.16 parts per thousand to +0.64 parts per thousand, and delta Zn-66 +0.29 parts per thousand to +0.71 parts per thousand) of the KHF andesites, which are significantly different from those of the MORBs and the continental crust (CC), have a relatively wide range of Cu and Zn isotopic compositions. This is most likely to be a result of the entrainment of the sedimentary carbonate-derived components into an andesitic magma. The recycled altered rocks (higher delta Fe-56, lower delta Zn-66) could preferentially incorporate isotopically light Fe and heavy Zn into the magma, resulting in relative enrichment of the lighter Fe and heavier Zn isotopes in the andesites. The majority of the delta Fe-56 values in the KHF andesites are higher than those of the sediments and the local CC and lower than those of the subducted altered rocks, while the reverse is true for delta Zn-66, suggesting that the subseafloor sediments and CC materials (lower delta Fe-56, higher delta Zn-66) contaminating the rising andesitic magma could preferentially incorporate isotopically heavy Fe and light Zn into the magma, resulting in relative enrichment of the heavier Fe and lighter Zn isotopes in the andesites. Thus, the characteristics of the Fe and Zn isotopes in back-arc and island-arc volcanic rocks may also be influenced by the CC and plate subduction components.
资助项目NSFC Major Research Plan on West-Pacific Earth System Multispheric Interactions[91958213] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; Taishan Scholar Foundation of Shandong Province[ts201511061] ; National Key Basic Research Program of China[2013CB429700]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
出版者MDPI
WOS记录号WOS:000744270700001
源URL[http://ir.qdio.ac.cn/handle/337002/177947]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Zeng, Zhigang
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
4.Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 80424, Taiwan
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Zhigang,Li, Xiaohui,Chen, Shuai,et al. Iron-Copper-Zinc Isotopic Compositions of Andesites from the Kueishantao Hydrothermal Field off Northeastern Taiwan[J]. SUSTAINABILITY,2022,14(1):13.
APA Zeng, Zhigang,Li, Xiaohui,Chen, Shuai,Zhang, Yuxiang,Chen, Zuxing,&Chen, Chen-Tung Arthur.(2022).Iron-Copper-Zinc Isotopic Compositions of Andesites from the Kueishantao Hydrothermal Field off Northeastern Taiwan.SUSTAINABILITY,14(1),13.
MLA Zeng, Zhigang,et al."Iron-Copper-Zinc Isotopic Compositions of Andesites from the Kueishantao Hydrothermal Field off Northeastern Taiwan".SUSTAINABILITY 14.1(2022):13.

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来源：海洋研究所

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