Fig. 3: The age distributions of terrestrial craters and lunar craters.
From: Asteroid shower on the Earth-Moon system immediately before the Cryogenian period revealed by KAGUYA
a is a histogram of radiometric ages of terrestrial craters, b is the relative probability of 59 crater ages investigated based on the conventional constant flux, and c shows the relative probability and histogram of 59 crater ages based on the 800 Ma spike model.
