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选择位于东亚季风典型区的苏北盆地沉降中心附近湖沼沉积为研究对象,进行了AMS14C、粒度、地球化学元素的综合分析。分析表明,末次冰消期以来苏北盆地古气候经历了冷干、暖湿、温湿、冷暖波动剧烈、暖湿的变化过程。苏北盆地DS钻孔沉积物所揭示的气候变化与贵州董歌洞石笋氧同位素数据和格陵兰冰芯数据所揭示的气候变化总体变化趋势大体一致,但在一些细部上还是存在着差异,较好的响应了区域环境和全球气候变化。
The lake sediments near the subsidence center of the Subei basin in the typical area of the East Asian monsoon are selected as the research object, and the comprehensive analysis of AMS14C, grain size and geochemical elements is carried out. The analysis shows that the paleoclimate of the Subei Basin has experienced the processes of cold dry, warm wet, warm wet, warm and cold, warm and cold fluctuating and warm and wet since the last ice extinction. The climate change revealed by the DS drilling sediments in the Northern Jiangsu Basin is generally consistent with the overall climate change trends revealed by the stalagmite oxygen isotope data of Dongge Cave, Guizhou Province and the ice core data of Greenland, but there are still some differences in some details Responded to the regional environment and global climate change.