从古海平面遗迹看晚更新世中国海的高海面高度

LOOKING AT HIGH SEA LEVEL OF CHINA SEA IN LATE PLEISTOCENE FR0M REMAINS OF ANCIENT SEA LEVEL

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。

The tens and hundreds meters wide marine-eroded Platform distributedfrom the Bohai Sea to the South China Sea, the marine-built surface of LatePleistocene with an elevation similar to that of Recent and the top height of littorafacies clay of Late Peistocene are three vestige evidences of ancient sea level whichcan define that the high sea level of the China Sea in Late Pleistocene, especially 4O-20 thousands years B. P., was near today's sea level. These vestiges are mainlyselected from conhnental coast rocky coast and barrier-lagoon coast. The top elevaionof littoral fasies clay in the middle stage of Late Pleistocene on the delta Plaininclines to give low results due to three factors, i.e. sediment compactation, erosionby flowing warer when sea level was low in the glacial epoch, and structuralsubsidences. The low results can be corrected through restoration.