For example, if a valley is formed inside an impact crater, the valley must be younger than the crater. Craters are very useful in relative dating; as a general rule, the younger a planetary surface is, the fewer craters it has.
Say hello
Find us at the office
Hostler- Pertzborn street no. 57, 67563 Kigali, Rwanda
Give us a ring
Anterio Ruebush
+29 780 790 988
Mon - Fri, 8:00-17:00