High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone
Abstract Hydrous aluminosilicates are important deep water-carriers in sediments subducting into the deep mantle. To date, it remains enigmatic how hydrous aluminosilicates withstand extremely high temperatures in the mantle transition zone. Here we systematically investigate the crystal structures...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56312-z |
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| author | Baoyun Wang Jin Liu Yanyao Zhang Baisheng Nie Wei Yang Jialong Hao Xing Ding Yongjun Tian |
| author_facet | Baoyun Wang Jin Liu Yanyao Zhang Baisheng Nie Wei Yang Jialong Hao Xing Ding Yongjun Tian |
| author_sort | Baoyun Wang |
| collection | DOAJ |
| description | Abstract Hydrous aluminosilicates are important deep water-carriers in sediments subducting into the deep mantle. To date, it remains enigmatic how hydrous aluminosilicates withstand extremely high temperatures in the mantle transition zone. Here we systematically investigate the crystal structures and chemical compositions of typical hydrous aluminosilicates using single-crystal X-ray diffraction, electron probe microanalyzer, and nanoscale secondary ion mass spectrometry. These single crystals are synthesized at 15.5–22.0 GPa and 1400–1700 °C, featuring pervasive structural disorders. In particular, Al and Si atoms extensively occupy new tetrahedral and octahedral sites that are nominally vacant in their ordered counterparts. High temperature activates disorders leading to variable local crystal structures and more hydrogen incorporation into the crystal structure. This result suggests that the order-to-disorder transition holds the key to the high thermal stability of hydrous aluminosilicates, significantly affecting the water cycle in the deep mantle. |
| format | Article |
| id | doaj-art-af73fe18bcb1433883a7c60cc877c156 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-af73fe18bcb1433883a7c60cc877c1562025-01-26T12:40:42ZengNature PortfolioNature Communications2041-17232025-01-011611710.1038/s41467-025-56312-zHigh-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zoneBaoyun Wang0Jin Liu1Yanyao Zhang2Baisheng Nie3Wei Yang4Jialong Hao5Xing Ding6Yongjun Tian7School of Earth Sciences, Lanzhou UniversityCenter for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan UniversityEarth and Planetary Sciences, Stanford UniversityState Key Laboratory of Coal Mine Disaster Dynamics and Control, School of Resources and Safety Engineering, Chongqing UniversityKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of SciencesKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of SciencesState Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of SciencesCenter for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan UniversityAbstract Hydrous aluminosilicates are important deep water-carriers in sediments subducting into the deep mantle. To date, it remains enigmatic how hydrous aluminosilicates withstand extremely high temperatures in the mantle transition zone. Here we systematically investigate the crystal structures and chemical compositions of typical hydrous aluminosilicates using single-crystal X-ray diffraction, electron probe microanalyzer, and nanoscale secondary ion mass spectrometry. These single crystals are synthesized at 15.5–22.0 GPa and 1400–1700 °C, featuring pervasive structural disorders. In particular, Al and Si atoms extensively occupy new tetrahedral and octahedral sites that are nominally vacant in their ordered counterparts. High temperature activates disorders leading to variable local crystal structures and more hydrogen incorporation into the crystal structure. This result suggests that the order-to-disorder transition holds the key to the high thermal stability of hydrous aluminosilicates, significantly affecting the water cycle in the deep mantle.https://doi.org/10.1038/s41467-025-56312-z |
| spellingShingle | Baoyun Wang Jin Liu Yanyao Zhang Baisheng Nie Wei Yang Jialong Hao Xing Ding Yongjun Tian High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone Nature Communications |
| title | High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| title_full | High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| title_fullStr | High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| title_full_unstemmed | High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| title_short | High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| title_sort | high temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone |
| url | https://doi.org/10.1038/s41467-025-56312-z |
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