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《Acta Geoscientica Sinica》 2006-01
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Numerical Modeling of Basin-Range Tectonics Related to Continent-Continent Collision

CUI Junwen ~ 1) SHI Jinsong ~ 2) LI Pengwu ~ 1) ZHANG Xiaowei ~ 1) GUO Xianpu ~ 1) DING Xiaozhong ~ 1) 1) Institute of Geology, Chinese Academy of Geological Science, Beijing, 100037; 2) Hehai University, Nanjing, Jiangsu, 210024  
Continent-continent collision is the most important driving mechanism for various geological processes in the continental lithosphere. The recognition and determination of continent-continent collision, especially its four-dimensional temporal and spatial evolution, is a subject which has long aroused concern and research interest in geological communities. Continent-continent collision mainly finds expression in strong underthrusting (subduction) of the underlying block along an intracontinental subduction zone and continuous obduction (thrusting propagation) of the overlying block along the intracontinental subduction zone, the formation of a basin-range tectonic framework in a direction perpendicular to the subduction zone and the flexure and disruption of the Moho. On the basis of numerical modeling, the authors discuss in detail the couplings between various quantities and rates of displacement caused by basin subsidence, mountain uplift and Moho updoming and downflexure during obduction (thrusting propagation) and subduction and the migration pattern of basin centers. They are probably indications or criteria for judgment or determination of continent-continent collision.
【Fund】: 国家“305”项目(编号:96-915-06-04);; 国家自然科学基金项目(编号:19972072);; 国土资源部大陆动力学开放实验室项目(编号:9812)的部分研究成果。
【CateGory Index】: P542
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