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DOI | 10.1038/s41467-020-15495-3 |
Anomalous fractionation of mercury isotopes in the Late Archean atmosphere | |
Aubrey L. Zerkle; Runsheng Yin; Chaoyue Chen; Xiangdong Li; Gareth J. Izon; Stephen E. Grasby | |
2020-04-06 | |
发表期刊 | Nature
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出版年 | 2020 |
英文摘要 | Earth鈥檚 surface underwent a dramatic transition ~2.3 billion years ago when atmospheric oxygen first accumulated during the Great Oxidation Event, but the detailed composition of the reducing early atmosphere is not well known. Here we develop mercury (Hg) stable isotopes as a proxy for paleoatmospheric chemistry and use Hg isotope data from 2.5 billion-year-old sedimentary rocks to examine changes in the Late Archean atmosphere immediately prior to the Great Oxidation Event. These sediments preserve evidence of strong photochemical transformations of mercury in the absence of molecular oxygen. In addition, these geochemical records combined with previously published multi-proxy data support a vital role for methane in Earth鈥檚 early atmosphere. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249592 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Aubrey L. Zerkle,Runsheng Yin,Chaoyue Chen,et al. Anomalous fractionation of mercury isotopes in the Late Archean atmosphere[J]. Nature,2020. |
APA | Aubrey L. Zerkle,Runsheng Yin,Chaoyue Chen,Xiangdong Li,Gareth J. Izon,&Stephen E. Grasby.(2020).Anomalous fractionation of mercury isotopes in the Late Archean atmosphere.Nature. |
MLA | Aubrey L. Zerkle,et al."Anomalous fractionation of mercury isotopes in the Late Archean atmosphere".Nature (2020). |
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