高水位体系域主要由滨浅湖沉积体系、扇三角洲沉积体系和浊积扇沉积体系组成。
High stand system tract is composed of coast and shallow lake sedimentary system, fan delta sedimentary system and turbidite fan sedimentary system.
研究表明：该凹陷沙三段层序低位域砂体发育下切水道充填，低位楔和低位扇。
The research shows that the lowstand sand bodies of the third member of the Shahejie Formation in the depression consist of incised channel deposits, lowstand wedges, and lowstand fan deposits.
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