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Lena Noack

From the inside out - how the rocky mantle defines volcanic outgassing efficiency and gas speciation

Accurate measurements of a planet's mass, radius and age (provided for example by the PLATO mission and follow-up measurements) together with compositional constraints from the stellar spectrum can help us to deduce potential evolutionary pathways that rocky planets can evolve along, and allow us to predict the range of likely atmospheric properties that can then be compared to observations.
However, for the possible evolution of atmospheric mass and composition, a large degeneracy exists due to several planetary and exterior factors and processes, making it more difficult to link the interior (and hence outgassing processes) of a planet to its atmosphere. The community therefore thrives now to identify the key factors that impact an atmosphere, and that may lead to distinguishable traces in secondary outgassed atmospheres. 
Here we review important planetary factors (such as planet mass or mantle redox state) that have already been identified to impact the atmospheric evolution of rocky planets, and show new investigations on the influence of plate tectonics on the composition of an evolving secondary atmophere.