Extended Data Fig. 6: Comparison of basin ages derived from the buffered nonsparseness correction technique (BNSC), samples, and our porosity modeled cratering records a) N(20) and b) basin ages.
From: Bombardment history of the Moon constrained by crustal porosity
Model cratering records (black circles) and associated uncertainties are the result shown in Supplementary Information. BNSC-derived basin ages (magenta circles) are from Orgel et al.45. The thick horizontal bars colored in yellow are proposed ages based on Apollo samples. For Imbrium, these youngest ages range from 3.75 Ga, from Rb-Sr radiometric derived ages of Apollo 16 impact melt rocks 60635 by Deutsch and Stöffler80 and 40Ar–39Ar ages of Apollo 14 rocks by Stadermann et al.81, to 3.95 Ga, from Schaeffer and Husain77. The age of Nectaris ranges from 3.98 Ga, from Jessberger et al.79 and Maurer et al.78, to 4.22–4.25 Ga, proposed by Norman and Nemchin76 and Schaeffer and Husain77. For Serenitatis, Snape et al.83 analyzed relative probability of phosphates Pb-Pb ages of four Apollo 14 melt breccias and found two spikes at ~3.92 and 3.94 Ga. An older age, 4.21 Ga, applying the same method to shocked phosphates from Apollo 17 samples, is suggested by Černok et al84.
