海洋地质与第四纪地质2001，Vol.21Issue(1)：711,1.
南海南部约30 ka来 沉积有机质的生物输入特征
THE CHARACTERISTICS OF BIOLO GICAL INPUT OF THE SEDIMENTARY ORGANIC MATTER IN SOUTHERN SOUTH CHINA SEA FOR THE LAST 30KA YEARS
摘要
Abstract
Py-GC（pyrolysis gas chromatograms）technique was used to analyze organic carbon in core 17962（7°11N，112°5E）taken from the South China Sea area．The organic carbon from autochthonous aquatic matter and land-derived plant materials was evaluated respectively and their high-resolution accumulation rates were given and discussed for paleoceanography of the southern South China Sea．This reveals an unstable paleoclimatic and paleooceanic environment during glaciation in the sea area．Such unstable phenomena such as so-called sub-orbit events like Younger Dryas and Heinrich events existed in many other areas in the world．The peak value near 10 kaBP at the undulating curve in the paper is evidently a behavior of Younger Dryas event and peaks near 15.5，21 and 28 kaBP may be related to H1，H2 and H3 of Heinrich event．And these events can be found both in the northern and southern areas of the South China Sea．Moreover，Bond G C et al．discovered 8（a，b，c，d，e，f，g and h）ice-rafted sedimentation events，that is，Bond Cycle events corresponding with Dansgaard-Oeschger（D／O）events of GRIP ice core respectively between H1 and H2，H2 and H3 and H3 and H4，which can be well reflected on the above-mentioned undulating curve．The wide distribution of these non-orbit or sub-orbit events in North Atlantic and East Asian monsoon regions（including China Loess Plateau，the Yellow Sea and northern and southern areas of the South China Sea）and the remote relationships between each other indicate that large-scale paleoclimatic and paleooceanic processes controlled their generation and development，which indicated that the West Pacific Warm Pool was not stable during the last glaciation．关键词
有机质/生物输入/古海洋/南海分类
海洋科学引用本文复制引用
贾国东,彭平安,房殿勇,汪品先..南海南部约30 ka来 沉积有机质的生物输入特征[J].海洋地质与第四纪地质,2001,21(1):711,1.基金项目
国家杰出青年基金(49453004)；国家自然科学基金资助项目(49732060) （49453004）
