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通过太湖两个钻孔岩芯有机碳同位素（１３Ｃ／１２Ｃ）的分析，发现δ１３Ｃ的垂直分布与太湖地区１６０００ａＢ．Ｐ．以来古气候波动相关。根据δ１３Ｃ垂直分布曲线可推测，大约在１１０００—６０００ａＢ．Ｐ，太湖地区处于温暖湿润期，气温高于现在平均温度。另一方面，根据太湖两岩芯沉积物的δ１３Ｃ值的对比发现，大约在１１０００—６０００ａＢ．Ｐ，西太湖（Ｗ１Ｂ）岩芯沉积物的δ１３Ｃ平均值明显高于东太湖（Ｅ２Ｂ）。据此可认为，在这一期间西太湖很可能有过海水侵入。
Through the analysis of the organic carbon isotopes (13C / 12C) of two cores in Taihu Lake, the vertical distribution of δ13C is found to be 16000aB in the Taihu Lake region. P. Since paleoclimate fluctuations related. According to the δ13C vertical distribution curve can be speculated that about 11000-6000aB. P, Taihu Lake region in a warm and humid period, the temperature is higher than the average temperature now. On the other hand, based on a comparison of δ13C values of sediments from two cores in Taihu Lake, it is found that they are about 11000-6000aB. P, δ13C values of core sediments in West Lake (W1B) are significantly higher than those in East Taihu Lake (E2B). Based on this, it can be assumed that it is probable that water has intruded into the West Lake during this period.