THE CRUSTAL STRUCTURE AND MODE OF CRUSTAL MOVEMENT IN THE SICHUAN-YUNNAN REGION

LI Guo-he; WANG Si-jin; SHANG Yan-jun; ZHANG Qiang

2000 Vol. 6, No. 2

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LI Guo-he, WANG Si-jin, SHANG Yan-jun, ZHANG Qiang. 2000. THE CRUSTAL STRUCTURE AND MODE OF CRUSTAL MOVEMENT IN THE SICHUAN-YUNNAN REGION. Journal of Geomechanics, 6(2): 82-91.

Citation:

LI Guo-he, WANG Si-jin, SHANG Yan-jun, ZHANG Qiang. 2000. THE CRUSTAL STRUCTURE AND MODE OF CRUSTAL MOVEMENT IN THE SICHUAN-YUNNAN REGION. Journal of Geomechanics, 6(2): 82-91.

THE CRUSTAL STRUCTURE AND MODE OF CRUSTAL MOVEMENT IN THE SICHUAN-YUNNAN REGION

Institute of Geology ang Geophyics, the Chinese Academy of Sciences, Beijing 100029, China

Received Date: 21 October 1999

Abstract

Abstract

Based on geophysical features,MT results and velocity structure of the crust and upper mantle in the Sichuan-Yunnan area,the crustal structure and tectonic setting in the deep crust are here presented. It has become clear that the thick crust of the area bordering the Sichuan and Yunnan provinces,appears to reflect the SSE extrusion in the continent-continent collision between the Indian plate and Eurasian plate. Its recent activity is characte-rized by block faulting.
- Sichuan-Yunnan rhombic block /
- crustal structure /
- block faulting