Seamless maps of major elements of the Moon: Results from high-resolution geostationary satellite

Major elements such as Fe, Ti, Mg, Al, Ca, and Si play very important roles in understanding the origin evolution of Moon. Previous maps these major derived from orbital data are based on mosaic images or low-resolution Gamma ray data. The hue variations gaps among boundaries not conducive to geological studies. This paper aims produce seamless homogenous distribution using single-exposure image whole lunar disk obtained by China's high-resolution geostationary satellite, Gaofen-4, with a spatial resolution ~500 m. elemental contents soil samples returned Apollo Luna missions were used ground truth, correlated reflectance sampling sites extracted Gaofen-4 final oxides generated statistical regression model. With products average proportions for maria highlands estimated compared. results showed that SiO2 TiO2 have highest lowest fractions mare highland areas, respectively. Besides, relative concentrations could serve indicators geologic processes, e.g., obviously asymmetric distributions Al2O3, CaO, around Tycho crater may suggest was formed an oblique impact southwest direction.