The Tail End of Terrestrial Planet Accretion Source of LHB
- Bottke et al. (2006) show terrestrial-region impactors don't last 700Myrs.
- Can rule out leftover planetesimals source >3σ, based on Imbrium and Orientale alone.
10-4basins/Myr X 200 Myr = 0.02 basins. We see 2.
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