Extended Data Fig. 7: Pre- and post-relaxation temperature and crustal thickness variations for 400 and 1,500 km-diameter basins formed at 150 Myr after tLMO on the lunar nearside and farside.
From: Obliteration of ancient impact basins on the Moon by viscous relaxation
The figure is similar to Extended Data Figs. 3 and 5, but for basins formed at 150 Myr after tLMO. a and b shows the basin with a diameter of 400 km while c and d shows the basin with a diameter of 1,500 km. The pre-relaxed temperatures of both the nearside and the farside crusts are all below 1,200 K (cyan line, left part of vertical black line in each plot). The heated lower crusts from the upwelling of impact-induced melt pools (gray line, right part in each plot) are very limited. The crusts in the basin interiors are not fully thickened before their temperatures drop below 1,200 K (cyan line, right part in each plot). Note that for basin with D ~ 1,500 km formed at 150 Myr after tLMO on the nearside, we consider the crust thickness of zero in the basin interior (see c) because such a large impact may not easily form the thick crust within the basin (see refs. 68,69,72).
