Layering on planetary surfaces: investigation through impact cratering modelin

Elena Martellato ( University Padova ) 06.07.2015

Collision events have played a fundamental role in the formation and evolution of our Solar System. An impact transfers meteorite kinetic energy to another planetary body. The subsequent excavation flow opens a transient cavity, which then collapses under gravity to a more stable structure. The nature of this geological process makes it a window into the internal structure of a planet and a tool to derive such crustal variations as: density, strength, water content, porosity, and composition.
In order to enlighten the nature of planetary near-upper surfaces, impact craters are investigated through numerical modelling by means of iSALE hydrocode. Further, the new era of high-resolution space data endorses a coupled approach between observations and advanced modelling of crater formation to reveal the structure and material properties of the crust at the time of the impact event, in addition to validate simulation results.