Geography Reference
In-Depth Information
Figure 25. Time series of crater diameters (Ma). Color shows the reliability (validity)
of structures.
Figure 26. Progressive growth of the number of discovered craters: ―ideal‖ is expected
growth, ―all‖ is the total of events in the EISC catalog, ―real‖ refers to proven and
probable craters (grades 0 and 1).
