Structural Deformation Features and Dynamic Mechanism of Neoproterozoic Strata in Zhanggongshan Area, Northern Margin of the Jiangnan Orogen

• 责任者：Zhang Yanjie (Nanjing Center ; China Geological Survey ; Nanjing 210016 ; China) ; Liao Shengbing
• 刊名：Geology in China
• 出版年：2010
• 卷期：37(4)
• 关键词：构造变形 ; tectonic deformation ; 大陆动力学 ; continental dynamics ; 江南古陆 ; Jiangnan Old Land
• 页码：p.978-994
• 图表：13 illus., 1 plate, 1 table, 29 refs.
• 分类号：0300
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

Zhanggongshan area is located in the junction zone between Anhui Province and Jiangxi Province. The flysch formation, consisting mainly of continental margin epimetamorphic fine clastic rocks and subordinately of volcanic rocks, is widely distributed in the area. A mass of high precise isotopic dating shows that the epimetamorphic strata might have been formed in Neoproterozoic between 820 Ma and 840 Ma.  This paper emphatically describes the geometry, superposition pattern, deformation order and kinematic characteristics of fold deformation, and analyzes the deformation mechanism and geocontinental dynamics.