6845 20240220094640.0 10.1029/2023GL105701 DOI SCART-2024-0095 Drilleau, Mélanie Constraints on Lateral Variations of Martian Crustal Thickness From Seismological and Gravity Field Measurements 2024 Using body wave arrival times from 31 seismic events recorded on Mars by the InSight mission, combined with topography and gravity field modeling, we constrained lateral variations of crustal thickness through a Bayesian inversion approach. The parameterization of the seismic structure relies on quantities that influence the thermochemical evolution of Mars, enabling the seismic velocities and densities in the different planetary envelopes to be consistently linked through common physical assumptions. Compared to a 1D structure, models with lateral variations of crustal thickness show two possible interpretations of the thermal evolution of Mars, with either a hot or cold scenario at the present-day. We found the hot scenario to be more compatible with InSight's radiotracking data and the tidal Love number. We relocated the marsquakes and derived maps of seismicity recorded by InSight, which is mostly located along or North of the boundary between the Northern lowlands and the Southern highlands. 3PRODPLANINT/ 3PRODPLANINT/ 3PRODPLANINT NO Samuel, Henri Garcia, Raphaël F. Rivoldini, Attilio Perrin, Clément Wieczorek, Mark Lognonné, Philippe Banerdt, William B. Geophysical Research Letters 51 2024 4 attilio.rivoldini@ksb-orb.be 3790410 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa00.pdf 9137282 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa01.pdf 19432 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa00.gif?subformat=icon icon 22463 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa00.jpg?subformat=icon-180 icon-180 2939 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa01.jpg?subformat=icon-180 icon-180 3045 http://publi2-as.oma.be/record/6845/files/Drilleau2024aa01.gif?subformat=icon icon published in REFERD