TY JOUR TI Numerical analysis of geodynamic evolution of the Earth based on a thermochemical model of mantle convection: 3-D model KW numerical analysis KW geodynamic evolution KW Earth's mantle KW origins of supercontinents KW numerical simulation. JO Russian Journal of Earth Sciences AU Kotelkin, V.D. AU Lobkovsky, L.I. PY 2004 IS 6 PB Geophysical Center of the Russian Academy of Sciences