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分析了高分辨率地震、测井和岩相资料以识别和划分层序界面 .结果表明 :沾化凹陷下第三系为 1个构造层序 ( TS1) ,发育的三个构造幕及二级气候旋回对应于 3个超层序 ( SS1-3 ) ,分别与盆地演化的阶段性相当 ,在其内部可进一步划分为 1 2个 级层序和 46个 级层序 .层序的形成主要受控于沉积基准面三级升降旋回 ;在过程的每一个演化阶段 ,其短期基准面旋回的结构和叠加样式不同 ,反映了由空间变化和物源供给决定的体系域构成特征 .
The high resolution seismic, logging and lithofacies data were analyzed to identify and demarcate the sequence boundaries.The results show that the lower Tertiary in Zhanhua sag is a tectonic sequence (TS1), three tectonic episodes and two The climatic cycles correspond to three super-sequence sequences (SS1-3), which correspond to the phases of the basin evolution and can be further divided into 12-level and 46-level sequences in the interior. Controlling the three-level ascending and descending cycles of the sedimentary datum, the structure and superposition pattern of the short-term base-level cycles are different during each evolutionary stage of the process, reflecting the characteristics of the system-domain determined by the spatial variation and the supply of provenance.