The paleoclimatic events and cause in the Okinawa Trough during 50 kaBP

作     者：S.Berne Y.Saito 

作者机构：Key Laboratory of Marine Science and Numerical Modeling State Oceanic Administration (SOA) Qingdao China First Institute of Oceanography SOA Qingdao China Institute of Oceanology Chinese Academy of Sciences Qingdao China Taiwan University Taibei China French Oceanographic Institute IFREMER Plouzane France Geological Survey of Japan Tsukuba Japan 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2001年第46卷第2期

页      面：153-157页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：a joint Chinese-French study funded by the National Natural Science Foundation of China (Grant Nos. 49776292 and 49736210) 

主　　题：Okinawa Trough sudden paleoclimatic change events polarity reversal events Late Quaternary. 

摘      要：Planktonic foraminiferal δ18O record for core DGKS9603 from the Okinawa Trough shows a series of climatic fluctuations and sudden cooling events in short time scale during 50 kaBP, which appear to correlate closely tothe Younger Dryas and Heinrich events H1-5 recorded in Chinese loess, the South China Sea, the North Atlantic cores and the Greenland ice cores. Three polarity reversal events, correlating to Gothenburg, Mungo and Laschamp events, approximately correspond to Heinrich events H1, H3 and H5 respectively, which could be a cause of global climate changes. The δ18O curve of the Okinawa Trough is well associated with the grain size record of the Lijiayuan loess profile in northwestern China and is somewhat different from the climate fluctuations documented in the Greenland ice cores. These correlation results indicate that regional factors play an important role in controlling the climate changes in the East Asia, and the East Asian Monsoon could be the prominent regional controlling factor.