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白云凹陷北坡具有独特的层序地层样式 :它的坡度较缓 ,不存在地貌上的陆架坡折 ,但由于断裂的活动 ,断层上下盘的落差客观上起到了陆架坡折的作用 ,使其低水位体系域具有Ⅰ型陡坡层序的特征 ,主要由盆底扇、深切河谷及充填物等组成。对于这种新的层序地层样式 ,可称之为受断裂控制的Ⅰ型缓坡层序地层样式
The north slope of Baiyun Sag has a unique sequence stratigraphic pattern: its slope is gentle, and there is no topography slope on the landform. However, due to the fault activity, the fall of the upper and lower faults of the fault objectively plays a role in slope collapse of the shelf, The low-water system tract has the characteristics of type Ⅰ steep slope sequence, which mainly consists of basin fan, deep river valley and filling. For this new sequence stratigraphic pattern, it can be referred to as type Ⅰ gentle slope sequence stratigraphic controlled by faults