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Deformation Characters of the Maowen Fault Belt in Longmenshan,Western Sichuan

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The Maowen fault belt is one of important fault belts of the intercontinental orogenic belt of Longmenshan, mainly experienced three stage deformation; they are ductile shearing of thrust napping, brittle thrust napping and sinstral strike-slipping. Although Sc strike of mylonite formed by ductile shearing in early stage was reformed by later two stage brittle deformation, and changed greatly along the strike and inclination, the shear zone, as a whole, strikes NE and inclines NW. The stretching lineation is parallel or nearly parallel to the inclination of the ductile shear zone. According to the development of conjugated joints, the main compressive stress of the two stage brittle deformation is oriented to 306°and 2°, respectively.

Maoen fault beltductile shearbrittle deformationLongmenshanwestern Sichuan

TANG Zemin、ZHANG Yueqiao、YANG Nong

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Institute of Geology, Chinese Academy of Geological Sciences, 100037

Institute of Geomechanics, Chinese Academy of Geological Sciences, 100081

2001

大陆动力学(英文版)

大陆动力学(英文版)

ISSN：1006-7825
年,卷(期)：2001.6(1)
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