Distribution and Abundance of Solar Wind‐Derived Water in Chang'E‐5 Core Samples and Its Implications
Heng‐Ci Tian,
Jialong Hao,
Yangting Lin
et al.
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 valu… Show more
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