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ＹＳＤＰ１０２孔和ＹＳＤＰ１０３孔位于南黄海东南侧冷涡所对应的泥质沉积区，它们揭示了自末次冰消期以来的海侵沉积序列：海侵滞留沉积→潮流砂脊／潮坪～海滩沉积→陆架泥质沉积。该沉积序列上部的陆架泥质沉积厚度可达５０余米，在浅地震剖面上其内部存在一个明显的反射界面，从而将泥质沉积体分为上、下两个单元。泥质沉积体呈灰绿色调，含少量自生黄铁矿，但其内反射界面以上的沉积物含水量高。根据两个钻孔岩心中有孔虫的分布规律、泥质沉积层的化学组分、沉积磁组构特征以及现有测年数据，得到如下结论：（１）黄海暖流形成于大约６ｋａＢ．Ｐ．，（２）泥质沉积层内反射界面以上的沉积物是与黄海暖流伴生的冷涡沉积，（３）黄海地区末次冰消期海侵自略早于１４ｋａＢ．Ｐ．之前开始，至约６ｋａＢ．Ｐ．海平面达到最高位置。从６ｋａＢ．Ｐ．至今，海平面经历了几次波动，即在６～４ｋａＢ．Ｐ．和３～１．９ｋａＢ．Ｐ．海平面超过现今海平面位置；在４～３ｋａＢ．Ｐ．和１．９ｋａＢ．Ｐ．～现代，海平面有所降低，可能与现今海平面高度相当。
The holes YSDP102 and YSDP103 are located in muddy sedimentary areas corresponding to the cold eddies on the southeastern side of the southern Yellow Sea. They reveal the sequences of transgressive sediments since the last deglaciation: transgressive sediment deposition → tidal current ridges / tidal flats ~ beach sediments → shelf Mud sediment. The thickness of the shelf muddy sediment in the upper part of the sedimentary sequence is up to 50 meters. There is a clear reflection interface in the shallow seismic section, which divides the muddy sedimentary body into upper and lower units. The muddy sediments are gray-green in color and contain a small amount of authigenic pyrite, but the sediments above the internal reflection interface have high water content. According to the distribution rules of foraminifera in the two boreholes, the chemical composition of the sedimentary layer, the characteristics of the sedimentary magnetic structure and the existing dating data, the following conclusions are obtained: (1) The Yellow Sea warm current is formed at about 6kaB. P. (2) The sediments above the reflection interface in the shaly sedimentary layer are cold vortex depositions associated with the Yellow Sea warm current, and (3) the spontaneous intrusion of the last ice depletion in the Yellow Sea region is earlier than 14 kaB. P. Before starting, to about 6kaB. P. Sea level reached the highest position. From 6kaB. P. So far, sea level has experienced several fluctuations, that is, 6 ~ 4kaB. P. And 3 ~ 1.9kaB. P. Sea level over the current sea level position; in 4 ~ 3kaB. P. And 1.9kaB. P. ~ Modern, the sea level has been reduced, may be the same height with the current sea level.