FOLDED RELIEF INVERSION AS MANIFESTATION OF THE EARTH’S CRUST LATERAL COMPRESSION

S. A. Bulanov; J. I. Trikhunkov

doi:10.15356/0435-4281-2013-1-11-18

FOLDED RELIEF INVERSION AS MANIFESTATION OF THE EARTH’S CRUST LATERAL COMPRESSION

S. A. Bulanov, J. I. Trikhunkov

https://doi.org/10.15356/0435-4281-2013-1-11-18

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Abstract

Folded morphostructures of various types are widespread in mountains. Inversion morphostructures (anticlinal valleys, synclinal ridges etc.) play an important role in mountain relief. They appear at different stages of orogens formation, but are more typical to mature relief and structures. Some examples of such ridges are given from two regions of Alpine-Himalaya mountain belt: the Northern Pamir and the West Caucasus. These ridges are represented by trough cores and have uppermost positions whereas the rocks, which build them up, are rather weak in comparison to those of neighbouring depressions. Authors explain the origin of such morphostructures by lateral compression of the folded massive: folding, elevation growth, and denudation go concurrently. Morphostructures of this kind may testify to large lateral compression of the Earths’ crust in corresponding regions.

Keywords

morphostructure, direct folded relief, inversion relief, lateral compression, stress

About the Authors

S. A. Bulanov

Institute of Geography of RAS, Moscow
Russian Federation
Laboratory of geomorphology

J. I. Trikhunkov

Geological Institute of RAS, Moscow
Russian Federation
Department of Geotectonic and Modern Geodynamic

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Review

For citations:

Bulanov S.A., Trikhunkov J.I. FOLDED RELIEF INVERSION AS MANIFESTATION OF THE EARTH’S CRUST LATERAL COMPRESSION. Geomorfologiya. 2013;(1):11-18. (In Russ.) https://doi.org/10.15356/0435-4281-2013-1-11-18