The sublacustrine fan, as an important deposit in actic region of northern Chexi sub-sag, is characterized with both source and reservoir in it and favorable hydrocarbon accumulation conditions.

• 摘要湖底扇是车西洼陷北部陡坡带的一种重要的沉积类型，具有自生、自储的特点，成藏条件优越。