ИСТИНА

In this study, we construct and discuss elemental abundance and petrological maps of the South Pole-Aitken basin from Moon Mineralogy Mapper (M3) data and Lunar Prospector Gamma-Ray Spectrometer (LP GRS) measurements. Surface materials with a clearly basaltic spectral signature occur only as relatively small patches with typical diameters around 100 km and less. These patches generally correspond to lava-flooded basins and crater floors. Mg-rich rocks in high concentrations between 60% and 80% are found on the floor and wall of the craters Dryden, Antoniadi, and Lyman (84 km, Ly), in the central peaks of craters Bhabha and Birkeland, and also around the northern wall of Leibnitz, and in the region east of Poincaré X. Additionally, Eijkman (54 km, E), Fitzeau (110 km, F), and many smaller deposits of Mg-rich rock, usually corresponding to small impact craters with diameters below 20 km and their ejecta, were detected.