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对东海东部陆坡处的两个高分辨率岩心进行了浮游有孔虫研究以重建表层水历史。１５个水平层的ＡＭＳ１４Ｃ测年揭示出了ＫＨ８２ -４ -１４和ＲＮ８０ -ＰＣ３岩心分别包括了近３６ｋａ和１７ｋａ的连续记录。在岩心下部发现了在北太平洋西部和东海常见的３１个浮游有孔虫种。
Planktonic foraminifera was conducted on two high resolution cores at the eastern slope of the East China Sea to reconstruct the history of surface water. AMS14C dating of 15 horizontal layers revealed that the KH82 -4 -14 and RN80-PC3 cores included continuous records of nearly 36 ka and 17 ka, respectively. In the lower core, 31 planktonic foraminifera species were found in the western North Pacific and the East China Sea.