Аннотация:On the coast of East Antarctica, in the area of 89° E, the Gaussberg volcano was discovered withrare lamproite lavas of Pleistocene age. To explain the origin of this rare volcanism, we calculated the distributions of temperature anomalies and mantle flow velocities for the South Polar Region. Numerical calculations show that the vertical flows of hot material of the Kerguelen plume flatten closer to the Earth’s surface, then the hot material of this plume is transported by subhorizontal currents in the upper mantle southeast to the edge of the East Antarctic lithosphere. This process can cause melting of the edge of the continental lithosphere. The molten material rises to the surface and erupts in our proposed Gaussberg volcanic province. Based on a detailed analysis of the subglacial relief in this area, it can be suggested that other subglacial volcanoes exist.