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依据钻孔岩芯和测井资料 ,对鲁西陆表海盆地含煤地层进行了高分辨率层序地层划分 ,研究了高分辨率层序地层特点及其控制因素。研究表明 ,鲁西陆表海沉积序列中不同级次旋回相互叠加 ,具有特征的低频 (Ⅱ～Ⅲ级 )和高频 (Ⅳ～Ⅵ级 )层序叠加样式 ;这种相互叠加的旋回结构受控于相互叠置的海平面变化周期 ,即复合海平面变化。海平面变化周期表现出非对称式突发性上升到缓慢回落的节律性 ,形成了不对称的旋回记录。
According to the borehole core and logging data, the high-resolution sequence stratigraphy of the coal-bearing strata in the Luxi continental shelf has been studied. The characteristics of high-resolution sequence stratigraphy and its controlling factors have been studied. The results show that the different levels of cycles superimposed on each other in the Luxihai surface ocean sedimentary sequence have the characteristics of low-frequency (Ⅱ-Ⅲ) and high-frequency (Ⅳ-Ⅵ) sequence superimposition patterns. The superimposed cyclone structures are controlled In the overlapping sea level change cycle, that is, composite sea level changes. The period of sea level variation shows asymmetric sudden rise to slow decline rhythms, forming an asymmetrical cycle record.