• 责任者：Li Xiaoyan (Key Lab. of Marine Geology ; Tongji University ; Shanghai 200092 ; China) ; Jian Zhimin
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2009
• 卷期：29(3)
• 关键词：第四纪 ; Quaternary ; 有孔虫类 ; foraminiferas ; 古环境 ; paleoenvironment ; 南海 ; South China Sea
• 页码：p.85-92
• 图表：6 illus., 2 tables, 30 refs.
• 分类号：1400
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

Planktonic foraminifera (PF) from core 89PC in the northwest of the South China Sea (SCS) were quantitatively studied. Together with SST and thermocline analysis, PF oxygen-carbon isotopes and calcium carbonate analysis and AMS¹⁴C dating, the fauna revealed major evolutionary paleooceanographic characteristics in the northwest SCS over the last 127 ka. The depth of thermocline showed no obvious fluctuations during MIS5-MIS4, but deepened gradually since MIS3. The sea surface paleotemperature (SST) estimated by the transfer function FP-12E showed that the summer SST ranged from 27.9 to 29.3℃, and the winter SST from 20.6 to 26.3℃. The comparison of SST data between the southern and the northern SCS indicated that SST in southern SCS was higher than that in northern SCS. The SST difference was more obvious in winter.