辽宁抚顺盆地始新世古气候定量研究

利用德国科学家 Mosbrugger 和 Utescher 在 1997 年提出的共存分析法对辽宁抚顺盆地始新世古气候进行定量重建。通过共存分析获得的抚顺盆地始新世古气候参数为：年均温度为 14.3～19.8℃（中值为 17.05℃），最热月均温为 24.1～27.7℃，最冷月均温为 2.5～10.9 ℃，年较差为 17.7～22.7℃，年降雨量为 803.6～1 113.3 mm (中值为 958.45 mm)，最大月降雨量为 179.4～268.1 mm，最小月降雨量为 10.2～12.7 mm。与现代气候对比发现：始新世时气温较现在（7.8℃）高9.25℃，年降雨量较现在（734.5 mm）多约224 mm，始新世时属于亚热带季风气候，现今为温带季风气候。

Quantitative Reconstruction of the Eocene Palaeoclimate in the Fushun Basin, Liaoning Province

Using the coexistence approach proposed by Mosbrugger and Utescher in 1997, the Eocene paleoclimate of the Fushun Basin in Liaoning Province had been quantitatively reconstructed. The Eocene paleoclimatic parameters of the Fushun Basin obtained are as the followings: the mean annual temperature(MAT) 14.3-19.8℃(the median is 17.05℃ ), the mean temperature of the warmest month (MWMT) 24.1-27.7℃, the mean temperature of the coldest month (MCMT) 2.5-10.9℃, the difference of temperatures between the coldest and warmest months (DT) 17.7-22.7℃, the mean annual precipitation(MAP) 803.6-1 113.3 mm( the median is 958.45 mm),the mean maximum monthly precipitation (MMaP) 179.4-268.1 mm, the mean minimum monthly precipitation (MMiP) 10.2-12.7 mm. Compared with the current climate, the temperature of the Eocene is about 9.25℃ higher than that of nowadays(7.8℃), and the mean annual precipitation is about 224 mm more than that of nowadays(734.5 mm). The Eocene climate belongs to subtropical monsoon while the present climate belongs to temperate monsoon.