中文摘要：

黄土是记录古气候和古环境变化信息的良好载体，长江三角洲平原及东海岛屿晚更新世黄土地层剖面的发现，证明了末次冰期以来长江三角洲地区及海域均广泛存在风尘黄土堆积的事实，研究表明长江三角洲平原埋藏黄土和东海岛屿黄土是下蜀黄土上部地层在中国东部沿海和海域的延伸和继续．中国东部风尘黄土记录了我国晚更新世以来东部沿海地区的气候变化及东亚季风演变，与中国西北地区黄土地层相比，东部黄土具有沉积厚度小、成因复杂、次生作用强烈的特点；粒度和磁化率等参数垂向变化规律没有西部明显；粘土矿物和常量化学成分显示了东部黄土经历了较强地淋溶作用．在东部风尘黄土研究过程中，更需注意区域环境特征、地貌地形特点以及沉积期后环境变化对风尘黄土沉积物的影响效应，通过多指标的综合验证才能够正确解读黄土地层赋含的环境变化信息以及认识我国东部季风区晚更新世以来的古环境演变过程及规律．

英文摘要：

Loess-Paleosol sequences provide a good continental record of paleoclimatic changes. The existence of loess deposits in the Yangtze River delta and islands in the East China Sea indicated that eolian dust deposited on these area since the last glacial period. It has been shown that loess deposits in the Yangtze River delta and islands in the East China Sea are the extension of upper formation of Xiashu loess deposits. Loess in East China, characterized by thin stratum, complex formation and intensively secondary alteration, records the alternation of cold and warm fluctuations since late Pleistocene, as well as the evolution of East Asia monsoon. The curves of particle size and magnetic susceptibility do not change as regularly as that of the loess deposits in West China, and the analysis of clay minerals and chemical components reveal that the intensive leaching process after deposition. Thus we should pay more attention on the local environment, the landform and the intensively alteration after its deposition before any attempts at paleoclimat ic reconstruction. It is suggested that multiparameter investigations represent a powerful approach for paleoclimatic reseach into the complex loess deposits record in the Yangtze River delta and the islands in the East China Sea.