GEODYNAMICS OF THE KAZAKHSTAN OROCLINE, CENTRAL ASIA

Pengfei Li,Yunying Zhang,Gideon Rosenbaum,I Safonova,Yingde Jiang,Keda Cai,Chao Yuan,Min Sun

doi:10.5800/gt-2017-8-3-0274

Abstract

Curved mountain belts, commonly referred as to oroclines that result from bending of quasi-linear orogenic belts, have fascinated generations of geologists. Such structures are widely recognized in modern and ancient orogens, and are fundamentally important for understanding geodynamics of convergent plate boundaries. However, how and why orogenic belts become bent has been in debate. Here we investigate the Kazakhstan Orocline in the Central Asian Orogenic Belt with an aim at understanding the geodynamics of oroclinal bending in accretionary orogens.

Highlights

Curved mountain belts, commonly referred as to oroclines that result from bending of quasi-linear orogenic belts, have fascinated generations of geologists
The Kazakhstan orocline is defined by a series of U-shaped arc systems, and paleomagnetic studies have shown that the arc systems were quasi-linear prior to the Late Devonian
The formation of the curved arc systems was previously attributed to bucking of originally linear orogenic belts in response to the convergence of the Siberian and Tarim cratons

Summary

Introduction

Commonly referred as to oroclines that result from bending of quasi-linear orogenic belts, have fascinated generations of geologists. PUBLISHED BY THE INSTITUTE OF THE EARTH’S CRUST SIBERIAN BRANCH OF RUSSIAN ACADEMY OF SCIENCES

Results

Conclusion