Morphotectogenesis of the Arctic geodepression, some conclusions and consequences

Abstract

The Arctic geodepression downwarping as a whole was sagged locally too. The local saggings compensated by sedimentation have formed buried arches, not expressed in the lithosphere surface topography, those not compensated formed exposed arches expressed in topography. As the level of sedimentation lowered little by little, the unburied arches became orogens.

The present height of the mountains in general case is made up of: the tectonic uplift which may be or not be; the relative «uplift» due to local saggings of adjacent plains; the «absolute uplift» due to lowering of the World Ocean level. Thus the estimate of to rate presents the key task of tectonics and geomorphology for the immediate future.