绥滨坳陷是三江盆地的次一级构造单元，位于三江盆地的西部。
Suibin depression, as a secondary tectonic unit, lies in the west of Sanjiang basin.
燕山运动控制着盆地次一级构造单元的格局及局部构造的形成。
Formation of the secondary structural units of the basin and formation of local structures are controlled by Yanshan movement.
一级构造层序揭示了盆地经历了5个构造演化阶段，形成5个盆地原型。
The 5 first order tectonic sequences show that the 5 types of basins are formed in 5 evolution stages.
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