High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone
文献类型：期刊论文
| 作者 | Wang, Baoyun6; Liu, Jin5; Zhang, Yanyao4; Nie, Baisheng3; Yang, Wei2; Hao, Jialong2; Ding, Xing1; Tian, Yongjun5 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2025-01-26 |
| 卷号 | 16期号:1页码:7 |
| DOI | 10.1038/s41467-025-56312-z |
| 英文摘要 | 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 degrees 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. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001405618100005 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82615]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Liu, Jin |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510000, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Chongqing Univ, Sch Resources & Safety Engn, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 4.Stanford Univ, Earth & Planetary Sci, Stanford, CA 94305 USA 5.Yanshan Univ, Ctr High Pressure Sci, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 6.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Baoyun,Liu, Jin,Zhang, Yanyao,et al. High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone[J]. NATURE COMMUNICATIONS,2025,16(1):7. |
| APA | Wang, Baoyun.,Liu, Jin.,Zhang, Yanyao.,Nie, Baisheng.,Yang, Wei.,...&Tian, Yongjun.(2025).High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone.NATURE COMMUNICATIONS,16(1),7. |
| MLA | Wang, Baoyun,et al."High-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone".NATURE COMMUNICATIONS 16.1(2025):7. |
入库方式： OAI收割
来源：广州地球化学研究所
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