Mathematical models of river terraces deformations due to tectonics

Abstract

Computer modeling permits to study river terraces response on different types of tectonic movements. If the .rate of uplift increases upstream, the resulting terraces are of chord type, altitudes of synchronous terraces fluctuate due to self-oscillattion. The river's response to differentiated uplifts is pronounced not only within the raised area, but in the adjacent parts of the valley as well. Besides, all the responses of the valley and its terraces to the tectonics have prolonged aftereffects. Deformations of terrace series bring about destruction of most of earlier levels.