In-situ observation of nanoscale transformations in dehydrating lizardite
Abstract Dehydration of serpentine is an important prograde metamorphic reaction within the lithosphere and subduction zones, potentially causing profound changes in rock properties. Imaging these transitions in real time provides direct insight into the process. We have used in-situ transmission el...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-88077-2 |
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| author | Mutian Qin Huilin Xing Jianchao Wang Guodong Jin Zhongwen Hu Weichao Yan Yuyang Tan Junbiao Liu Rongxin Zhang |
| author_facet | Mutian Qin Huilin Xing Jianchao Wang Guodong Jin Zhongwen Hu Weichao Yan Yuyang Tan Junbiao Liu Rongxin Zhang |
| author_sort | Mutian Qin |
| collection | DOAJ |
| description | Abstract Dehydration of serpentine is an important prograde metamorphic reaction within the lithosphere and subduction zones, potentially causing profound changes in rock properties. Imaging these transitions in real time provides direct insight into the process. We have used in-situ transmission electron microscopy (TEM) to continuously monitor nanoscale transformations in lizardite from 20 to 600 °C. Phase transformation processes during dehydration are recorded and analyzed in real time, including the amorphization of lizardite, and the recrystallization of nanocrystalline forsterite and talc within amorphous dehydroxylate phases. These observations delimitate the role of dehydration temperature in controlling reaction kinetics and the nucleation of reaction products. Specifically, the higher the temperature, the faster the rate of lizardite dehydration, accompanied by faster and more extensive nucleation of nanocrystalline forsterite and talc. Furthermore, the lizardite crystal is observed to gradually shrink with dehydration while maintaining its structural integrity, leading to the expansion of nanoscale intergranular pores and the formation of interconnected pore networks. |
| format | Article |
| id | doaj-art-affba5820ba54756835157097d306a68 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-affba5820ba54756835157097d306a682025-02-02T12:17:45ZengNature PortfolioScientific Reports2045-23222025-02-0115111110.1038/s41598-025-88077-2In-situ observation of nanoscale transformations in dehydrating lizarditeMutian Qin0Huilin Xing1Jianchao Wang2Guodong Jin3Zhongwen Hu4Weichao Yan5Yuyang Tan6Junbiao Liu7Rongxin Zhang8Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaLaoshan LaboratoryFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of ChinaAbstract Dehydration of serpentine is an important prograde metamorphic reaction within the lithosphere and subduction zones, potentially causing profound changes in rock properties. Imaging these transitions in real time provides direct insight into the process. We have used in-situ transmission electron microscopy (TEM) to continuously monitor nanoscale transformations in lizardite from 20 to 600 °C. Phase transformation processes during dehydration are recorded and analyzed in real time, including the amorphization of lizardite, and the recrystallization of nanocrystalline forsterite and talc within amorphous dehydroxylate phases. These observations delimitate the role of dehydration temperature in controlling reaction kinetics and the nucleation of reaction products. Specifically, the higher the temperature, the faster the rate of lizardite dehydration, accompanied by faster and more extensive nucleation of nanocrystalline forsterite and talc. Furthermore, the lizardite crystal is observed to gradually shrink with dehydration while maintaining its structural integrity, leading to the expansion of nanoscale intergranular pores and the formation of interconnected pore networks.https://doi.org/10.1038/s41598-025-88077-2 |
| spellingShingle | Mutian Qin Huilin Xing Jianchao Wang Guodong Jin Zhongwen Hu Weichao Yan Yuyang Tan Junbiao Liu Rongxin Zhang In-situ observation of nanoscale transformations in dehydrating lizardite Scientific Reports |
| title | In-situ observation of nanoscale transformations in dehydrating lizardite |
| title_full | In-situ observation of nanoscale transformations in dehydrating lizardite |
| title_fullStr | In-situ observation of nanoscale transformations in dehydrating lizardite |
| title_full_unstemmed | In-situ observation of nanoscale transformations in dehydrating lizardite |
| title_short | In-situ observation of nanoscale transformations in dehydrating lizardite |
| title_sort | in situ observation of nanoscale transformations in dehydrating lizardite |
| url | https://doi.org/10.1038/s41598-025-88077-2 |
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