| Atmosphere |
|
|
| Uniform |
|
| growth |
|
| Degassing |
| C. Crust |
|
|
| No crustal |
|
| recycling |
|
| MANTLE |
| Fractionation + |
|
|
| Flux from |
|
| hotspots |
|
| Residual lith. |
| Fractionation - |
| D '' |
|
|
| Uniform |
|
| growth |
|