The studies to exhibit the sedimentary source in the east china sea during the last glacial age are of great significance to reveal the hydrologic situation of paleo - continent and paleo - ocean , climate change and environmental evolution 分析末次冰期東海沉積物來源,對揭示古陸、古海洋水文狀況、氣候變化和環境演化都有重要意義。