Badong Formation is the result of continental-oceanic interactive facies sedimentary and Zigui basin is the result of intra-continental basinal depositing.
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- 下部巴东组总体为海陆交互相沉积,而秭归盆地则转为内陆盆地沉积。该界面性质的确定为研究秭归盆地形成与演化提供了基础。