研究区火山岩发育，火山活动对油气成藏影响较大，但火山活动期次尚不明确。
The volcanic rocks in the study area are very developed, volcanic activity has larger influence on hydrocarbon accumulation, but activity times of volcanic remains unclear.
古地貌形态、断裂活动期次、强度及坡折带的发育控制了扇体的数量、规模与迁移方向。
It is pointed out that, the number, scale and migration direction of fans were controlled by palaeogeomorphology, periods and strength of fault movement, and the development of slope-bend belt.
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