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sedimentary environment.Based on the de-formation feature of the syngenetie elast,theauthor believes that the ShuangqiaoshanGroup in this area has undergone two phasesof deformation:the regional fold deformat一ondominated by flattening and duetile shear d
sedimentary environment. Based on the de-formation feature of the syngenetie elast, the author believes that the ShuangqiaoshanGroup in this area has undergone two phases of deformation: the regional fold deformat- ondominated by flattening and duetile shear d