TY JOUR TI 3-D Spherical models for mantle convection, continental drift, and the formation and disintegration of supercontinents KW mantle convection KW floating continent KW numerical simulation KW evolution of the mantle-continent system KW 3-D models. JO Russian Journal of Earth Sciences AU Trubitsyn, V.P. AU Rykov, V.V. PY 1998 IS 1 PB Geophysical Center of the Russian Academy of Sciences