Variation of crater morphological parameters in the landing area of Tianwen-1: relationships with the geological environment and climate change

Earth, Planets and Space

Table 4 Degradation and erosion rate data for 100-m-scale craters

Class interval	Time interval (Myr)	Degradation rate (Dr) (m/Myr)	Dr Error	Erosion rate (Er) (m/Myr)	Er Error
3–4	120	0.018	0.007	0.001	0.004
3–5	290	0.010	0.003	0.003	0.002
3–6	420	0.009	0.002	0.002	0.002
3–7	620	0.007	0.002	0.002	0.001
4–5	170	0.004	0.002	0.004	0.003
4–6	290	0.005	0.001	0.003	0.002
4–7	500	0.004	0.001	0.002	0..02
5–6	130	0.005	0.001	0.001	0.002
5–7	330	0.004	0.001	0.001	0.001
6–7	200	0.003	0.001	0.002	0.001