中文摘要：

对东海陆架泥质沉积区MD06-3040柱状样有孔虫进行了地球化学分析,获得了底栖有孔虫（Rotalinoides gaimardii）Mg/Ca和δ^18O及浮游有孔虫（Globigerina bulloides）δ^18O等的高分辨率记录。通过与微体化石群、沉积物粒度等古环境替代性指标对比分析,认为研究区有孔虫Mg/Ca和δ^18O的变化主要受浙闽沿岸流和台湾暖流及其相关的东亚季风所控制,并推测了研究区近8千年来的古环境演变过程：8.0-4.1 cal.kaBP时期,夏季风盛行,台湾暖流和黑潮发育强盛,底层和表层海水都具有较高的温度、盐度和δ^18O值,其中底层海水温度在5.7-5.2和4.6-4.1 cal.kaBP两个时期最高;4.1-0.4 cal.kaBP时期,冬季风盛行,台湾暖流和黑潮影响减弱,浙闽沿岸流发育增强,使海水温度和盐度及δ^18O显著下降;0.4 cal.kaBP以来夏季风再次变强,台湾暖流和黑潮的影响随之增强,海水温度又明显上升。

英文摘要：

The geochemistry of foraminiferal tests from the core MD06-3040,that was taken from the shelf mud area of the East China Sea（27°43.3663′N, 121°46.8822′E,water depth 47 m,core length 19.36 m）,provides a high-resolution Mg/Ca and δ^18O records of benthic foraminifera（Rotalinoides gaimardii） and planktonic foraminifera（Globigerina bulloides）.By comparing with micropaleontological and sediment grain-size data,it is suggested that the changes in Mg/Ca and δ^18O are controlled principally by the coastal current,warm current and the monsoon related.The paleoenvironmental history of the last 8 000 years has been proposed as following： between 8.0 and 4.1 cal.kaBP,the summer monsoon and the corresponding Taiwan Warm Current and Kuroshio Current were markedly enhanced,particularly during the 5.7～5.2 and 4.6～4.1 cal.kaBP periods,providing both the bottom and surface water with higher temperature,salinity and δ^18O;during 4.1～0.7cal.kaBP period,the winter monsoon and the Zhe-Min Coastal Current prevailed,resulting in a marked decrease in temperature,salinity and δ^18O of both the bottom and surface water,due to a great increase in the supply of the diluted water originated from the Changjiang and Qiantang rivers;after 0.4 cal.kaBP the summer monsoon and the warm currents prevailed again,causing a paleoceanographical condition similar to the early period.