This session invites contributions that are primarily focused on Studies of the Earth’s Deep Interior, specifically including lower mantle and core dynamics or observations clarifying mantle and core structure. Earth’s surface evolution is strongly controlled by the deep interior, due to the role of convection in the lower mantle. Mantle convection impacts both plate motion and heat loss from the liquid core, which controls inner core growth. Liquid core convection, on the other hand, is responsible for the Earth’s magnetic field generation. Results from numerical modelling studies, relevant laboratory experiments, theory-based calculations, seismic tomography studies, and other fields that aim to increase our understanding of the deep interior are all encouraged. Also welcome are studies focused on an understanding of the deep interiors of other terrestrial bodies, both extra-solar and within the solar system.

Oral talks:

1:30 - 2:00: Influence of heterogeneous thermal conductivity on the long-term evolution of the lower-mantle thermochemical structure: implications for primordial reservoirs
Presenter(s): Joshua Guerrero

2:00 - 2:15: The role of subduction in the formation of Pangean oceanic large igneous provinces
Presenter(s): Philip Heron, , University of Toronto Scarborough, Erkan Gün (UTSC), Grace E. Shephard (CEED), Juliane Dannberg (University of Florida), Rene Gassmöller (University of Florida), Erin Martin (Monash), Aisha Sharif (UTSC), Russell N. Pysklywec (University of Toronto), R. Damian Nance (Ohio University, Yale

2:15 - 2:30: Contrasts in two- and three-dimensional system behaviour in the modelling of compositionally originating LLSVPs and a mantle featuring dynamically obtained plates
Presenter(s): Julian Lowman, Professor, University of Toronto Scarborough, Sean M. Langemeyer, Department of Physics, University of Toronto; Paul J. Tackley, Department of Earth Sciences, ETH Zurich

2:30 - 2:45: Spherical shell geometry convection in a fluid with an Arrhenius viscosity: the impact of core size on the thermal structure of terrestrial bodies
Presenter(s): Pejvak Javaheri, , University of Toronto Scarborough, Pejvak Javaheri - Centre for Research in Earth System Science, University of Toronto Scarborough, Toronto, Canada, Julian P. Lowman - Centre for Research in Earth System Science, University of Toronto Scarborough, Toronto, Canada, Paul J. Tackley

2:45 - 3:00: Liquid core dynamical stability and the Earth's rotational modes
Presenter(s): Behnam Seyed-Mahmoud, University of Lethbridge