Isotopic reconstruction of iron oxidation-reduction process based on an Archean Ocean analogue
文献类型：期刊论文
| 作者 | Yang, Xi2,3,5; Guo, Qingjun2,4; Boyko, Valeria1; Avetisyan, Khoren1; Findlay, Alyssa J.1; Huang, Fang6; Wang, Zhongliang5; Chen, Zhenwu6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-04-15 |
| 卷号 | 817页码:10 |
| 关键词 | Iron isotopes Iron oxidation-reduction process Dissimilatory iron reduction Modern lake Archean |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.152609 |
| 通讯作者 | Guo, Qingjun(guoqj@igsnrr.ac.cn) |
| 英文摘要 | The chemical composition and redox conditions of the Precambrian ocean are key factors for reconstructing the tem-poral evolution of atmospheric oxygen through time. In particular, the isotopic composition of iron are useful proxies for reconstructing paleo-ocean environments. Yet, respective processes and related signatures are poorly constrained, hindering the reconstruction of iron redox mechanisms in the Archean ocean. This study centers on Sihailongwan Lake, a stratified water body with a euxinic lower water column considered as an Archean ocean analogue. Results show that the anaerobic oxidation layer is so different from other similar lakes in which dissolved Fe oxidation is pres-ent in redoxcline layer. And the fractionation factor between ferrous Fe and iron hydroxide observed in nature water body of Sihailongwan Lake reaches to 2.696o, which would benefit the production of the oxidations of BIF in sediment. By the spatial distribution of Fe isotope, the benthic water in autumn and the hypolimnetic anoxic water in spring has been identified as iron sulfide zone, where iron isotopic fractionation factor during iron sulfide formation is 1.1696o, accounting for partial scavenging of dissolved Fe(II) with an associated isotopic fractionation. However, pyrite in the sediment records the iron isotopic signal from the redoxcline but not in the iron sulfide or oxide zones of the water column. Above findings indicate that neither the iron isotope fractionation during partial transfer of ferrous iron to iron sulfide nor the partial oxidation of ferrous iron are recorded as pyrite in sedimentary rock. Importantly, the signal of Fe isotopic fractionation in water was archived in the suspended particulate matter and transferred into the sediment, rather than via ferrous iron directly deposited in the sediment. This study reveals that Fe isotopes from modern natural environments are useful proxies for reconstructing iron oxidation-reduction process during Earth's early history. |
| WOS关键词 | SIHAILONGWAN NORTHEAST CHINA ; FE ISOTOPE ; VARVED SEDIMENTS ; AQUEOUS FE(II) ; ORGANIC-MATTER ; JILIN PROVINCE ; FRACTIONATION ; EARTH ; LAKE ; PALAEOVARIATIONS |
| 资助项目 | National Natural Science Foundation of China[41561144005] ; National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[41761144066] ; National Natural Science Foundation of China[41890824] ; National Natural Science Foundation of China[41890822] ; National Key Research and Development Program of China[2017YFC0212703] ; Cross-Team and Key Laboratory Cooperative Research Special Project of Chinese Academy of Sciences (CAS Light of West China Program) |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000793348100004 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Cross-Team and Key Laboratory Cooperative Research Special Project of Chinese Academy of Sciences (CAS Light of West China Program) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/177458]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Ben Gurion Univ Negev, Dept Geol & Environm Sci, Beer Sheva, Israel 2.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 5.Tianjin Normal Univ, Tianjin Key Lab Water Resources & Environm, Tianjin 300387, Peoples R China 6.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xi,Guo, Qingjun,Boyko, Valeria,et al. Isotopic reconstruction of iron oxidation-reduction process based on an Archean Ocean analogue[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,817:10. |
| APA | Yang, Xi.,Guo, Qingjun.,Boyko, Valeria.,Avetisyan, Khoren.,Findlay, Alyssa J..,...&Chen, Zhenwu.(2022).Isotopic reconstruction of iron oxidation-reduction process based on an Archean Ocean analogue.SCIENCE OF THE TOTAL ENVIRONMENT,817,10. |
| MLA | Yang, Xi,et al."Isotopic reconstruction of iron oxidation-reduction process based on an Archean Ocean analogue".SCIENCE OF THE TOTAL ENVIRONMENT 817(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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