Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle | |
Runsheng Yin![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2022 | |
Source Publication | Nature Communications
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Pages | 948 |
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. |
DOI | 10.1038/s41467-022-28577-1 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://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 |
Affiliation | 1.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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