Séminaire: Planetary time scales, Moon, Mars and meteorites

Understanding the evolution of planets in the Solar System, and how they compare, critically depends on accurate estimates of time and rates at which processes, e.g. volcanism, occur. Knowledge of proper time scales are still a challenge, but needed to investigate the pattern of mantle dynamics, the thermal evolution, and to date important phases of crustal formation and volcanic activity or even periods at which life could develop.

This talk will present an introduction to the current state of models that describe the bombardment history of the terrestrial planets, how they are calibrated, and the challenges faced reconciling Solar System evolution models, lunar and Martian crater records, and isotope geochemistry.