ON THE STRUCTURAL-TECTONIC CONDITIONS OF THE FORMATION OF PENEPLAINS AND THEIR METALLOGENY

Abstract

Following W. M. Davis and Russian geologists of the older generation, the author considers peneplain as a levelling plain formed in the place of a highland as a result of denudation and weathering. He proves that the formation of peneplains reflects a cer­tain (postorogenic) stage in the development of folded regions predetermined by general development of the earth crust’s structure from geosyncline to a platform under the conditions of hot and humid climates. The peneplains are characterized: a) by an original complex of consedimentation and condenudation structural forms; b) by the fact that their formation is the formation of weathering crust; c) by a special combination of gene­tic types and forms of relief; d) by hypergenetic deposits of minerals peculiar solely of them.