NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle
Water, in trace amounts, can greatly alter chemical and physical properties of mantle minerals and exert primary control on Earth’s dynamics. Quantifying how water is retained and distributed in Earth’s deep interior is essential to our understanding of Earth’s origin and evolution. While directly s...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2023.1166593/full |
| _version_ | 1797834504351514624 |
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| author | Ya-Nan Yang Ya-Nan Yang Zhixue Du Zhixue Du Wenhua Lu Wenhua Lu Wenhua Lu Yue Qi Yue Qi Yan-Qiang Zhang Yan-Qiang Zhang Wan-Feng Zhang Wan-Feng Zhang Peng-Fei Zhang |
| author_facet | Ya-Nan Yang Ya-Nan Yang Zhixue Du Zhixue Du Wenhua Lu Wenhua Lu Wenhua Lu Yue Qi Yue Qi Yan-Qiang Zhang Yan-Qiang Zhang Wan-Feng Zhang Wan-Feng Zhang Peng-Fei Zhang |
| author_sort | Ya-Nan Yang |
| collection | DOAJ |
| description | Water, in trace amounts, can greatly alter chemical and physical properties of mantle minerals and exert primary control on Earth’s dynamics. Quantifying how water is retained and distributed in Earth’s deep interior is essential to our understanding of Earth’s origin and evolution. While directly sampling Earth’s deep interior remains challenging, the experimental technique using laser-heated diamond anvil cell (LH-DAC) is likely the only method available to synthesize and recover analog specimens throughout Earth’s lower mantle conditions. The recovered samples, however, are typically of micron sizes and require high spatial resolution to analyze their water abundance. Here we use nano-scale secondary ion mass spectrometry (NanoSIMS) to characterize water content in bridgmanite, the most abundant mineral in Earth’s lower mantle. We have established two working standards of natural orthopyroxene that are likely suitable for calibrating water concentration in bridgmanite, i.e., A119(H2O) = 99 ± 13 μg/g (1SD) and A158(H2O) = 293 ± 23 μg/g (1SD). We find that matrix effect among orthopyroxene, olivine, and glass is less than 10%, while that between orthopyroxene and clinopyroxene can be up to 20%. Using our calibration, a bridgmanite synthesized by LH-DAC at 33 ± 1 GPa and 3,690 ± 120 K is measured to contain 1,099 ± 14 μg/g water, with partition coefficient of water between bridgmanite and silicate melt ∼0.025, providing the first measurement at such condition. Applying the unique analytical capability of NanoSIMS to minute samples recovered from LH-DAC opens a new window to probe water and other volatiles in Earth’s deep mantle. |
| first_indexed | 2024-04-09T14:40:04Z |
| format | Article |
| id | doaj.art-54bc64ea5fd3468e97176983f1202ca4 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-09T14:40:04Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-54bc64ea5fd3468e97176983f1202ca42023-05-03T09:30:47ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462023-04-011110.3389/fchem.2023.11665931166593NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantleYa-Nan Yang0Ya-Nan Yang1Zhixue Du2Zhixue Du3Wenhua Lu4Wenhua Lu5Wenhua Lu6Yue Qi7Yue Qi8Yan-Qiang Zhang9Yan-Qiang Zhang10Wan-Feng Zhang11Wan-Feng Zhang12Peng-Fei Zhang13State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaCollege of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaCAS Center for Excellence in Deep Earth Science, Guangzhou, ChinaFaculty of Earth Resources, China University of Geosciences, Wuhan, ChinaWater, in trace amounts, can greatly alter chemical and physical properties of mantle minerals and exert primary control on Earth’s dynamics. Quantifying how water is retained and distributed in Earth’s deep interior is essential to our understanding of Earth’s origin and evolution. While directly sampling Earth’s deep interior remains challenging, the experimental technique using laser-heated diamond anvil cell (LH-DAC) is likely the only method available to synthesize and recover analog specimens throughout Earth’s lower mantle conditions. The recovered samples, however, are typically of micron sizes and require high spatial resolution to analyze their water abundance. Here we use nano-scale secondary ion mass spectrometry (NanoSIMS) to characterize water content in bridgmanite, the most abundant mineral in Earth’s lower mantle. We have established two working standards of natural orthopyroxene that are likely suitable for calibrating water concentration in bridgmanite, i.e., A119(H2O) = 99 ± 13 μg/g (1SD) and A158(H2O) = 293 ± 23 μg/g (1SD). We find that matrix effect among orthopyroxene, olivine, and glass is less than 10%, while that between orthopyroxene and clinopyroxene can be up to 20%. Using our calibration, a bridgmanite synthesized by LH-DAC at 33 ± 1 GPa and 3,690 ± 120 K is measured to contain 1,099 ± 14 μg/g water, with partition coefficient of water between bridgmanite and silicate melt ∼0.025, providing the first measurement at such condition. Applying the unique analytical capability of NanoSIMS to minute samples recovered from LH-DAC opens a new window to probe water and other volatiles in Earth’s deep mantle.https://www.frontiersin.org/articles/10.3389/fchem.2023.1166593/fullwaterbridgmaniteNanoSIMShigh pressuredeep Earth |
| spellingShingle | Ya-Nan Yang Ya-Nan Yang Zhixue Du Zhixue Du Wenhua Lu Wenhua Lu Wenhua Lu Yue Qi Yue Qi Yan-Qiang Zhang Yan-Qiang Zhang Wan-Feng Zhang Wan-Feng Zhang Peng-Fei Zhang NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle Frontiers in Chemistry water bridgmanite NanoSIMS high pressure deep Earth |
| title | NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle |
| title_full | NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle |
| title_fullStr | NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle |
| title_full_unstemmed | NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle |
| title_short | NanoSIMS analysis of water content in bridgmanite at the micron scale: An experimental approach to probe water in Earth’s deep mantle |
| title_sort | nanosims analysis of water content in bridgmanite at the micron scale an experimental approach to probe water in earth s deep mantle |
| topic | water bridgmanite NanoSIMS high pressure deep Earth |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2023.1166593/full |
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