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Thinking of Getotectonic Attribution on Jinshan Group in Shanghai Area

GU Pengtao (Shanghai Geological Society, Shanghai 200072)  
According to the rock association of Jinshan Group, it' s protolith, protolith formation, metamorphic process, structural deformation process and existent isotopic age value, the author considers that Jinshan Group could be consistent with ChencaiGroup in south - east part of Zhejiang Province and it is the base component of Cathaysian paleo - plate. As the view of Cathaysian paleo - plate and converged Yangtze paleo - plate for several times as reference, it could be inferred that the block fault of Jinshan Group which distributed south - east side along Fengjing - Chuansha fault could be the result of collision and impingement of 2 plates in the end of Jinning stage and it also could be structural nappe sheet which formed within integrated assemblage - zone.
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