The result shows that, this area develops several sedimentation systems including alluvial fan, fan delta, subsea apron, delta, channel and lake and volcanic rock body.
结果表明：该区下白垩统主要发育冲积扇、扇三角洲、水下扇、三角洲、河道、湖泊等多种沉积体系及火山岩体。
The delta front sandbody in Tongbomiao Formation, the subsea apron sandbody and fandelta front sandbody in Nantun Formation provide good reservoir space for hydrocarbon accumulation.
铜钵庙组三角洲前缘砂体、南屯组（扇）三角洲前缘砂体和水下扇砂体为油气聚集成藏提供了良好的储集空间。
The delta front sandbody in Tongbomiao Formation, the subsea apron sandbody and fandelta front sandbody in Nantun Formation provide good reservoir space for hydrocarbon accumulation.
铜钵庙组三角洲前缘砂体、南屯组（扇）三角洲前缘砂体和水下扇砂体为油气聚集成藏提供了良好的储集空间。
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