Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin
Abstract (Titano)magnetite is the major magnetic carrier in igneous rocks, whether it can decode the influence of subduction fluids and fractional crystallization characteristics in back‐arc basins is unclear. Here, we performed petrographic and magnetic analyses on volcanic samples from the Okinawa...
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-05-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2025GL115006 |
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| author | Jie Xu Zhaoxia Jiang Xia Zhang Sangzhong Li Xiyao Li Long Chen Haonan Song Yuying Chen Yuzhen Zhang Zehua Guo Kun Guo Qingsong Liu |
| author_facet | Jie Xu Zhaoxia Jiang Xia Zhang Sangzhong Li Xiyao Li Long Chen Haonan Song Yuying Chen Yuzhen Zhang Zehua Guo Kun Guo Qingsong Liu |
| author_sort | Jie Xu |
| collection | DOAJ |
| description | Abstract (Titano)magnetite is the major magnetic carrier in igneous rocks, whether it can decode the influence of subduction fluids and fractional crystallization characteristics in back‐arc basins is unclear. Here, we performed petrographic and magnetic analyses on volcanic samples from the Okinawa Trough, with titanomagnetite as the dominant magnetic mineral. Results show that the Curie temperature of Ti‐rich titanomagnetites (Tc TM‐R) not only has the potential to identify the influence of subduction fluids in back‐arc basins but also can be used to differentiate basalts and basaltic andesites that have been formed in different geologic settings. Additionally, the magnetic domain state ranges from single domain to multi‐domain as the fractional crystallization proceeds. Our study illustrates that magnetic properties of titanomagnetite are potential tracers for subduction fluids and fractional crystallization, which is of referential significance for research on relatively scarce samples from subduction zones and even extraterrestrial bodies. |
| format | Article |
| id | doaj-art-c73fe412ca824f94bb1868c00e805ef9 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-c73fe412ca824f94bb1868c00e805ef92025-08-20T02:30:59ZengWileyGeophysical Research Letters0094-82761944-80072025-05-015210n/an/a10.1029/2025GL115006Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc BasinJie Xu0Zhaoxia Jiang1Xia Zhang2Sangzhong Li3Xiyao Li4Long Chen5Haonan Song6Yuying Chen7Yuzhen Zhang8Zehua Guo9Kun Guo10Qingsong Liu11Frontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaLaoshan Laboratory Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaFrontiers Science Center for Deep Ocean Multispheres and Earth System Key Lab of Submarine Geosciences and Prospecting Techniques MOE College of Marine Geosciences, State Key Laboratory of Physical Oceanography Ocean University of China Qingdao ChinaNorth China Sea Survey Center Ministry of Natural Resources Qingdao ChinaLaoshan Laboratory Qingdao ChinaLaoshan Laboratory Qingdao ChinaAbstract (Titano)magnetite is the major magnetic carrier in igneous rocks, whether it can decode the influence of subduction fluids and fractional crystallization characteristics in back‐arc basins is unclear. Here, we performed petrographic and magnetic analyses on volcanic samples from the Okinawa Trough, with titanomagnetite as the dominant magnetic mineral. Results show that the Curie temperature of Ti‐rich titanomagnetites (Tc TM‐R) not only has the potential to identify the influence of subduction fluids in back‐arc basins but also can be used to differentiate basalts and basaltic andesites that have been formed in different geologic settings. Additionally, the magnetic domain state ranges from single domain to multi‐domain as the fractional crystallization proceeds. Our study illustrates that magnetic properties of titanomagnetite are potential tracers for subduction fluids and fractional crystallization, which is of referential significance for research on relatively scarce samples from subduction zones and even extraterrestrial bodies.https://doi.org/10.1029/2025GL115006 |
| spellingShingle | Jie Xu Zhaoxia Jiang Xia Zhang Sangzhong Li Xiyao Li Long Chen Haonan Song Yuying Chen Yuzhen Zhang Zehua Guo Kun Guo Qingsong Liu Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin Geophysical Research Letters |
| title | Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin |
| title_full | Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin |
| title_fullStr | Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin |
| title_full_unstemmed | Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin |
| title_short | Effects of Subduction Fluids and Fractional Crystallization on the Magnetic Minerals Formation in the Back‐Arc Basin |
| title_sort | effects of subduction fluids and fractional crystallization on the magnetic minerals formation in the back arc basin |
| url | https://doi.org/10.1029/2025GL115006 |
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