中国科学院南京地质古生物研究所机构知识库

Cores 255, 170, 17940-2, raised from the Okinawa Trough and South China Sea, have been studied for planktonic foraminifers. Among all the species, Pulleniatina obliquiloculata is shown to be sensitive to winter sea surface temperature in the late Quaternary in the western Pacific. Its relative abundance fluctuations are significant and correlatable between the cores. The most conspicuous change during Holocene is the P. obliquiloculata minimum zone around 4-2 ka B.P.. which correlates probably to the neoglacial cooling. The widespread occurrence of this cooling event in the western pacific suggests that P. obliquiloculata is promising as a paleoceanographic and climatic monitor, possibly important for reconstructing sea-land correlation of climate.