Nicolas Coltice

TL;DR: In this paper, the authors developed a numerical model in axisymmetric cylindrical geometry with variable viscosity to determine the time and length scales of the adjustment, and showed that if the impactor is larger than a critical size, the spherical heated zone isothermally flattens until its thickness reaches a value for which motionless thermal diffusion becomes more effective.

TL;DR: In this article, the authors present a perspective on the dynamics behind global tectonics with a focus on the importance of self-organisation, and discuss the approximation of the rheology of the lithosphere used in these models.

TL;DR: In this paper, the authors use 3D spherical numerical simulations with self-consistently generated plates and compositionally and rheologically distinct continents floating at the top of the mantle in order to investigate the feedbacks between continental drift, oceanic plate tectonics and the thermal state of the Earth's mantle, by using different continent configurations ranging from one supercontinent to six small continents.

TL;DR: In this paper, a typologie des dispositifs hybrides de formation is proposed, a partir de leurs caracteristiques pedagogiques, organisationnelles and materielles.

TL;DR: In this article, the authors explore the consequences of the crystallization of a BMO for the noble gas evolution of the mantle and show that if the solid-melt partition coefficients of He and Ne are > 0.01 at high pressure and temperature, pile cumulates can be pristine like.