Some problems of mountain geomorphologу

Abstract

Three problems of mountain geomorphology are discussed: morphologic nomenclature and classification of the mountains; determinative characteristics of landforms transitional from mountain to plain types, gravitational spreading of the mountains. Veriants of their possible solution are suggested, in particular vertical and lateral velocities of gravitational spreading of mountains were evaluated, using the Navier-Stokes equation. At the acceptable values of lithosphere viscosity they may reach tenths of mm per year, which is comparable with tecnotic uprise velocity and denudation rates.