Space Weathering of the Chang'e?5 Lunar Sample From a Mid?High Latitude Region on the Moon

Micrometeorite impacts and solar wind irradiation, the dominant space weathering (SW) processes, largely modified compositions microtexture of soil materials on Moon. Here, we report SW characteristics Chang'e-5 lunar soils from mid-high latitude (43.06°N). All mineral phases exposed surface a single basalt clast have vapor deposit layer, whereas textures irradiation-damaged zone are dependent host species. Nanophase Fe (npFe0) particles spherical in amorphized pyroxenes, elongated ilmenite, irregular jagged iron sulfide, but not found Fe-poor merrillite. Vesicles were damaged ilmenite merrillite, with different shapes. The observations compared to Apollo samples demonstrate no significant altitude-dependent effects SW, which is important for decoding reflectance spectra