Evolution of Paleoenvironment Since Late Pleistocene 24ka of LH01Core in the Northern Liaodong Bay

Based on the analyses of grain size,sporopollen,foraminifera,AMS14 C and OSL dating from LH01Core in the Northern Liaodong Bay,the evolutions of climate and paleoenvironment since Late Pleistocene are discusses in this paper.LH01Core has undergone great palaeogeographic changes since Late Pleistocene:rivers and lakes in the Late Pleistocene,marine and lands during the Early Holocene,shallow marine in the Middle Holocene,estuary shallow marine during the Late Holocene.The records of sporopollen show that climate:cool-dry during the Late Pleistocene,cool-wet during the Late Pleistocene, cool-wet in the Early Holocene,hot-wet in the Middle Holocene,hot-dry in the Middle Holocene,warmdry during the LateHo locene.PanShan invasion event is discovered aboaut 7.5ka BP in LH01Core.