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Three evolutionary stages of the collision orogenic deformation in the Middle Yangtze Region 被引量:1

Three evolutionary stages of the collision orogenic deformation in the Middle Yangtze Region
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摘要 A discussion of collision orogenic deformation has been made for the Middle Yangtze Region. Based on its deformation assemblage orders, three developing stages are classified successively as compression thrust uplift, strike-slip escape rheology and tension extension inversion. The collision orogenesis of the studied region has been divided into three developing periods of initial, chief and late orogeny. Based on the data from Wugong Mts., Jiuling Mts. and Xuefeng Mts.,for each stage, its variation of stress and strain axes, the conversion of joint fractures and their relative tectonic evolution are described, models are plotted and corresponding explanations are made for the rock chronology dating value in the same tectonic period. A discussion of collision orogenic deformation has been made for the Middle Yangtze Region. Based on its deformation assemblage orders, three developing stages are classified successively as compression thrust uplift, strike-slip escape rheology and tension extension inversion. The collision orogenesis of the studied region has been divided into three developing periods of initial, chief and late orogeny. Based on the data from Wugong Mts., Jiuling Mts. and Xuefeng Mts., for each stage, its variation of stress and strain axes, the conversion of joint fractures and their relative tectonic evolution are described, models are plotted and corresponding explanations are made for the rock chronology dating value in the same tectonic period.
作者 SUN Yan Yan Sun (1) ; Liangshu Shu (1) ; Wenbin Zhu (1) ; Jichun Guo (1) ; Xiangyun Chen (2) ; M. Faure (3) ; J. Charvet (3) ; W. Lin (3) ;
出处 《中国科学:地球科学英文版》 SCIE EI CAS 2001年第11期990-1001,共12页 SCIENCE CHINA Earth Sciences
基金 国家自然科学基金
关键词 碰撞 orogenesis 变丑 构造进化 中间的 Yangtze 区域 collision orogenesis deformation tectonic evolution the Middle Yangtze Region
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