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在高分辨率~(14)C 测年、岩石、生物、化学、同位素、气候及磁性地层学研究成果基础上,通过不同沉积背景典型钻孔的沉积学分析,运用层序地层学理论,对东海陆架全新统进行了高分辨率层序划分及对比;建立了全新世层序地层格架及海平面变化过程;提出了相应的层序成因模式。研究结果表明,东海陆架全新统相当于一个发育中的六级(1～10ka)层序,可进一步划分为3个七级(0.1～1ka)层序和若干个更次级层序。代表1个六级或3个七级周期相对海平面变化过程中叠加有若干更次级的海平面波动,它们与地球旋回谱系中的太阳带、历法带密切相关。七级层序具有与三级层序相近的内部构型和成因格架。在东海陆架全新世沉积演化过程中,长江三角州至少有3次不同程度地越过东海陆架进入冲绳海槽,并滞留有至少3层海侵改造“残积砂”沉积。在东海陆架全新世海平面变化期间,最大海平面时期为约距今6～5ka,大致高于现今海平面2～4m,最低海平面在距今10ka 左右,大约低于现今海平面130m。目前,由于温室效应的影响,海平面仍呈小幅度波浪式上升。事实证明,层序地层学不仅丰富了现代海洋沉积学的内容,而且解决了许多海洋沉积学未能解决的问题.
Based on the results of high-resolution ~ (14) C dating, lithology, biology, chemistry, isotope, climate and magnetostratigraphy, through the sedimentology analysis of typical boreholes in different sedimentary backgrounds and using the theory of sequence stratigraphy, The East China Sea Shelf Holocene was divided into high-resolution sequence and contrast; established Holocene sequence stratigraphic framework and sea level change process; and proposed the corresponding sequence genesis pattern. The results show that the Holocene of the East China Sea continental shelf equals to a developing sixth-order (1 ~ 10ka) sequence and can be further divided into three seventh-order (0.1 ~ 1ka) sequences and several second-order sequences. Representing a number of more sub-sea level fluctuations superimposed on a single six-level or three-level seven-period relative sea level change that are closely related to the solar belt and calendar zone in the Earth’s cyclical pedigree. The seven-level sequence has similar internal structure and genesis framework as the three-level sequence. During the Holocene sedimentary evolution of the East China Sea Shelf, the Yangtze River Delta at least 3 times crossed the East China Sea continental shelf into the Okinawa Trough, leaving at least 3 layers of transgression and “residual sediment” sedimentation. During the Holocene sea level change in the East China Sea shelf, the maximum sea level period is about 6 ~ 5 ka, which is about 2 ~ 4 m above sea level at present, and the minimum sea level is about 10 ka at present, which is about 130 m below sea level at present. At present, due to the impact of the greenhouse effect, the sea level is still a small wave rise. It turns out that sequence stratigraphy not only enriches the content of modern marine sedimentology, but also solves many problems that marine sedimentology can not solve.