| Autor: |
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 |
| Rok vydání: |
2024 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| Popis: |
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. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
