The evolution of lunar endogenic and exogenic processes and the resulting three dynamical phases. (IMAGE)

Science China Press

The evolution of lunar endogenic and exogenic processes and the resulting three dynamical phases.

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Evolution of endogenic processes is indicated by simulated melt production rate and mare basalt volume. Evolution of exogenic process is indicated by impactor kinetic energy. The points represent ages of lunar samples produced from different geologic processes. The three evolution phases are designated as Eolunarian, Paleolunarian, and Neolunarian from old to young.

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