The 3 sedimentary melanges in the Hagong Formation ( Late Carnian - Norian ) are resulted from the back - arc riftogenesis.
哈工组 ( 卡尼晚期 ——— 诺利期 ) 中的三层沉积混杂岩是弧后裂陷作用的产物.
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Songre Formation is carnian period ; Jiangxiong Formation and Zhangcun Formation is norian period.
宋热组时代为晚三叠世卡尼期,江雄组和章村组为晚三叠世诺利期.
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