Kinematics Analysis to Shallow Structural Deformation in Sanjiang Region of Southeast Tibet

SU  Long, YANG  Xin, LIU  Xin-Wang, ZHENG  Jian-Jing

doi:10.11764/j.issn.1672-1926.2010.01.117

Natural Gas Geoscience >

2010 , Vol. 21 >Issue 1: 117 - 124

DOI: https://doi.org/10.11764/j.issn.1672-1926.2010.01.117

Kinematics Analysis to Shallow Structural Deformation in Sanjiang Region of Southeast Tibet

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1.Key Laboratory of Petroleum Resources Research,Chinese Academy of Sciences, Lanzhou 730000,China;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2009-05-07

Revised date: 2009-07-24

Online published: 2010-02-10

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Abstract

During the uplift of Tibetan plateau, the collision of Indian plate and Europe-Asian plate led to continental crust blocks' extrusion along large-scale strike-slip faults. We used the model of collision extrusion to reasonably explain the Cenozoic intensive strike-slip active. But it was paid less attention to the study of complex thrust-folding deformations，multi-phase structural deformational overlay pattern and dynamical mechanism of shallow structural deformation. After investigating the transverse section through the basin-orogen units, we divided shallow structural deformation of Sanjiang region into extruding and shearing mechanical types, and found out the time and form for the different structural deformation. Then the folding history was gotten after Indo-China epoch era. Finally, we proved the conversion of dynamical mechanisms and put forward the kinematical model of small-size strike-slip faults which distribute the whole area in late Cenozoic.

Key words： Tectonic deformation; Kinematics analysis; Collision; Extrusion model; Sanjiang region.

Cite this article

SU Long, YANG Xin, LIU Xin-Wang, ZHENG Jian-Jing . Kinematics Analysis to Shallow Structural Deformation in Sanjiang Region of Southeast Tibet[J]. Natural Gas Geoscience, 2010 , 21(1) : 117 -124 . DOI: 10.11764/j.issn.1672-1926.2010.01.117

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