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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.13719 |
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| _version_ | 1866908398228865024 |
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| author | Cai, Shuhui Qin, Huafeng Wang, Huapei Deng, Chenglong Yang, Saihong Xu, Ya Zhang, Chi Tang, Xu Gu, Lixin Li, Xiaoguang Shen, Zhongshan Zhang, Min He, Kuang Qi, Kaixian Fan, Yunchang Dong, Liang Hou, Yifei Shi, Pingyuan Liu, Shuangchi Su, Fei Chen, Yi Li, Qiuli Li, Jinhua Mitchell, Ross N. He, Huaiyu Li, Chunlai Pan, Yongxin Zhu, Rixiang |
| author_facet | Cai, Shuhui Qin, Huafeng Wang, Huapei Deng, Chenglong Yang, Saihong Xu, Ya Zhang, Chi Tang, Xu Gu, Lixin Li, Xiaoguang Shen, Zhongshan Zhang, Min He, Kuang Qi, Kaixian Fan, Yunchang Dong, Liang Hou, Yifei Shi, Pingyuan Liu, Shuangchi Su, Fei Chen, Yi Li, Qiuli Li, Jinhua Mitchell, Ross N. He, Huaiyu Li, Chunlai Pan, Yongxin Zhu, Rixiang |
| contents | The evolution of the lunar magnetic field can reveal the Moon's interior structure, thermal history, and surface environment. The mid-to-late stage evolution of the lunar magnetic field is poorly constrained, and thus the existence of a long-lived lunar dynamo remains controversial. The Chang'e-5 mission returned the heretofore youngest mare basalts from Oceanus Procellarum uniquely positioned at mid-latitude. We recovered weak paleointensities of 2-4 uT from the Chang'e-5 basalt clasts at 2 billion years ago, attestting to the longevity of a lunar dynamo until at least the Moon's midlife. This paleomagnetic result implies the existence of thermal convection in the lunar deep interior at the lunar mid-stage which may have supplied mantle heat flux for the young volcanism. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_13719 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Persistent but weak magnetic field at Moon's midlife revealed by Chang'e-5 basalt Cai, Shuhui Qin, Huafeng Wang, Huapei Deng, Chenglong Yang, Saihong Xu, Ya Zhang, Chi Tang, Xu Gu, Lixin Li, Xiaoguang Shen, Zhongshan Zhang, Min He, Kuang Qi, Kaixian Fan, Yunchang Dong, Liang Hou, Yifei Shi, Pingyuan Liu, Shuangchi Su, Fei Chen, Yi Li, Qiuli Li, Jinhua Mitchell, Ross N. He, Huaiyu Li, Chunlai Pan, Yongxin Zhu, Rixiang Geophysics The evolution of the lunar magnetic field can reveal the Moon's interior structure, thermal history, and surface environment. The mid-to-late stage evolution of the lunar magnetic field is poorly constrained, and thus the existence of a long-lived lunar dynamo remains controversial. The Chang'e-5 mission returned the heretofore youngest mare basalts from Oceanus Procellarum uniquely positioned at mid-latitude. We recovered weak paleointensities of 2-4 uT from the Chang'e-5 basalt clasts at 2 billion years ago, attestting to the longevity of a lunar dynamo until at least the Moon's midlife. This paleomagnetic result implies the existence of thermal convection in the lunar deep interior at the lunar mid-stage which may have supplied mantle heat flux for the young volcanism. |
| title | Persistent but weak magnetic field at Moon's midlife revealed by Chang'e-5 basalt |
| topic | Geophysics |
| url | https://arxiv.org/abs/2411.13719 |