Table 1
Fractions of the impactor and target participating in metal-silicate equilibration for different impact regimes.
| Impact regime | Impactor's core | Impactor's mantle | Target's core | Target's mantle |
|---|---|---|---|---|
| A. early phase impact | 1.0 | 1.0 | 1.0 | 1.0 |
| B. late phase, small impact | 0.7 | 1.0 | 0.0 | 0.0 |
| C1. late phase, large impact | 0.3 | 1.0 | 0.0 | FMP |
| C2. late phase, planetesimal accretion in post-large impact | 0.7 | 1.0 | 0.0 | FMO |
Notes. For large impacts, fMP denotes the fraction of the target's mantle involved in equilibration within the impact-generated melt pool, while fMO is the fraction of the basal magma-ocean mantle that equilibrates during subsequent planetesimal accretion.
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