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Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle
Runsheng Yin; Di Chen; Xin Pan; Changzhou Deng; Liemeng Chen; Xieyan Song; Songyue Yu; Chuanwei Zhu; Xun Wei; Yue Xu; Xinbin Feng; Joel D. Blum; Bernd Lehmann
2022
Source PublicationNature Communications
Pages948
Abstract

The geochemical cycle of mercury in Earth’s surface environment (atmosphere, hydrosphere, biosphere) has been extensively studied; however, the deep geological cycling of this element is less well known. Here we document distinct mass-independent mercury isotope fractionation (expressed as Δ199Hg) in island arc basalts and mid-ocean ridge basalts. Both rock groups show positive Δ199Hg values up to 0.34‰ and 0.22‰, respectively, which deviate from recent estimates of the primitive mantle (Δ199Hg: 0.00 ± 0.10‰, 2 SD)1. The positive Δ199Hg values indicate recycling of marine Hg into the asthenospheric mantle. Such a crustal Hg isotope signature was not observed in our samples of ocean island basalts and continental flood basalts, but has recently been identified in canonical end-member samples of the deep mantle1, therefore demonstrating that recycling of mercury can affect both the upper and lower mantle. Our study reveals large-scale translithospheric Hg recycling via plate tectonics.

DOI10.1038/s41467-022-28577-1
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Indexed BySCI
Language英语
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Cited Times:57[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13481
Collection矿床地球化学国家重点实验室
环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
2.University of Chinese Academy of Sciences, Beijing, China
3.Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
4.First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
5.Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
6.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
7.Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, USA
8.Mineral Resources, Technical University of Clausthal, Clausthal-Zellerfeld, Germany
Recommended Citation
GB/T 7714
Runsheng Yin,Di Chen,Xin Pan,et al. Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle[J]. Nature Communications,2022:948.
APA Runsheng Yin.,Di Chen.,Xin Pan.,Changzhou Deng.,Liemeng Chen.,...&Bernd Lehmann.(2022).Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle.Nature Communications,948.
MLA Runsheng Yin,et al."Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle".Nature Communications (2022):948.
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