TY JOUR TI Influence of continents and lithospheric plates on the shape of D$"$ layer and the spatial distribution of mantle plumes KW Convection; lower mantle; $D''$~layer; plumes; plates JO Russian Journal of Earth Sciences AU Trubitsyn, V.P. AU Evseev, M.N. AU Trubitsyn, A.P. PY 2015 IS 15 PB Geophysical Center of the Russian Academy of Sciences