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从渤海到南海分布的几十至上百米宽的海蚀平台、与全新世类高的晚更新世海积地面和同期滨海相粘性土的顶面高程，是确定晚更新世、尤其是距今4万至2万年中国海的高海面接近现在海面的3项古海面遗迹证据。选择证据以大陆海岸、岩岸和沙坝湖海岸为主。三角洲平原的晚更新世中期海相粘性土的顶面高程偏低，是由于沉积物压实、冰期低海山时被流水蚀低和构造下沉3个因素造成的，可通过复原获得改正。
From the Bohai Sea to the South China Sea distribution of tens to hundreds of meters wide sea platform, with the Holocene Pleistocene seafloor surface and the same period the top elevation of the coherence of the coastal waters, is to determine the Late Pleistocene, especially since ago 4 Between 20,000 and 20,000 years The high sea level in the Chinese sea is close to the evidence of three ancient sea surface relics in the sea. The evidence of choice is mainly on the coasts of the mainland, rocky banks and the shore of Shaba Lake. The delta elevation of the mid-late Pleistocene marine clay in the delta plain was caused by three factors, sediment compaction, glacial low sea-level erosion and tectonic subsidence, which can be corrected by restoration.