On planetary geomorphological systems

Abstract

Conceptual models are discussed for highest taxonomic rank geomorphological systems, as well as general principles of functioning and development of natural boundary systems. Continents and oceans are considered to be highest categories in systematic organization of landforms; their deep tectonic structure, isostatic equilibrium realisation mechanism and convection processes in astendsphere are discussed in -terms of plate tectonics. The author concludes that at present state of knowledge only alternative conceptual models can be developed.