LATE PLEISTOCENE EVOLUTION OF THE PALEO YANGTZE DELTA IN THE SOUTH YELLOW SEA

The alteration of climate in late Pleistocene caused global sea-level changes. Its direct reflection in the South Yellow Sea is sea-land interbedding facies. Up-to-date high resolution shallow seismic profile was used to analyse the post-late Pleistocene seismic strata in the west offshore continental shelf of the South Yellow Sea. The paleo deltas were then measured and the seismic characters were discussed. The current paper concludes that the paloe deltas can be divided into four large periods. Judging from sediment characters, these four deltas were all formed by paleo Yangtze River. Deltas folded upon each other, and the ranges and expanding directions were different; each paleo Yangtze delta has an evident co-relationship with sea-level changes.