Figure 3
From: Transport of impact ejecta from Mars to its moons as a means to reveal Martian history

Formation age distributions of Martian meteorites and Martian particles in the regolith of Phobos compared with the evolution of magnetic activity, D/H ratio of hydrosphere/cryosphere, surface water inventory, surface mineralogy, and key stratigraphies created utilizing the Hartmann and Neukum (2001) chronology model. X-axis is time in the unit of Ga.