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南海北部陆坡ODP1144站96.49-137.6 mcd 1)井段的高分辨率浮游有孔虫定量分析与δ18O测定表明末次间冰期(MIS 5.5即5 e)内发生过一次表层海水突然降温的事 件, 冬季水温下降幅度可达7.5℃, 表层水δ18O值也下降1.2‰. 此次降温事件在西欧和北大西洋均已发现, 相互可以对比, 但南海记录的降温事件更加强烈. 此次事件推测由中低纬地区而非极地冰盖引起; 由于黑潮标志种Pulleniatina obliquiloculata对此次降温事件反映最为强烈, 有可能与西太平洋低纬度地区的古海洋学变化有关. 此次事件可认为属“新仙女木期”式的降温, 表明末次间冰期气候的变异性.
Quantitative analysis of high resolution planktonic foraminifera and δ18O determination at 96.49-137.6 mcd 1) in the northern slope of the South China Sea show that a sudden drop of surface seawater has occurred in the last interglacial (MIS 5.5, 5 e) And the δ18O value of surface water also decreased by 1.2 ‰. The cooling event has been found in both Western Europe and the North Atlantic, which can be compared with each other, but the cooling events recorded in the South China Sea are more intense. Region rather than the polar ice sheet. As the Kuroshio marker Pulleniatina obliquiloculata is most strongly reflected in this cooling event, it may be related to paleoceanographic changes in low latitudes of the western Pacific. "The type of cooling, indicating the variability of the last interglacial climate.