Distribution and Abundance of Solar Wind‐Derived Water in Chang'E‐5 Core Samples and Its Implications
Abstrak
Abstract Knowledge regarding the abundance and distribution of solar wind (SW)‐sourced water (OH/H2O) on the Moon in the shallow subsurface remains limited. Here, we report the NanoSIMS measurements of H abundances and D/H ratios on soil grains from three deepest sections of the Chang'E‐5 drill core sampled at depths of 0.45–0.8 m. High water contents of 0.13–1.3 wt.% are present on approximately half of the grain surfaces (topmost ∼100 nm), comparable to the values of Chang'E‐5 scooped soils. The extremely low δD values (as low as −995‰) and negative correlations between δD and water contents indicate that SW implantation is an important source of water beneath the lunar surface. The results are indicative of homogeneous distribution of SW‐derived water in the vertical direction, providing compelling evidence for the well‐mixed nature of the lunar regolith. Moreover, the findings demonstrate that the shallow subsurface regolith of the Moon contains a considerable amount of water.
Topik & Kata Kunci
Penulis (14)
Heng‐Ci Tian
Jialong Hao
Yangting Lin
Yuchen Xu
Ziliang Jin
Chi Zhang
Wei Yang
Sen Hu
Ruiying Li
Zongyu Yue
Qiuli Li
Yong Wei
Xianhua Li
Fuyuan Wu
Akses Cepat
- Tahun Terbit
- 2024
- Sumber Database
- DOAJ
- DOI
- 10.1029/2023GL107005
- Akses
- Open Access ✓