【作者】 罗宝信； 王毓釗； 林泽蓉；

【Author】 Luo Baoxin Wang Yuzhao (Tianjin Institute of Geology and Mineral Resources) Lin Zerong (Changchun Geological College)

【机构】 天津地质矿产研究所； 长春地质学院；

【摘要】 <正>近年来在中国东部不少地点,找到晚更新世晚期的云杉林花粉组合,对确定本区曾有冷暖气候变化,具有重要意义,成为我国第四纪工作的成果之一；但其中还未见有天津的报道。此外,在有关的孢粉资料中,系统的 C¹⁴测年不多,综合性的讨论也少。因此,可能有人因云杉花粉易传散而存疑,或使人误认为晚更新世晚期以来只有一、二次冷暖气候变更多还原

【Abstract】 A series of detailed C¹⁴ isotopic chronological data and the general outline of plant climate development in eastern China for the duration from 70,000 years to present would be presented in this paper. On the basis of the above mentioned data,the natural circumstances of concerted time was rebuilt,which indicates that at that time the eastern China sometime was uplifted to become land and sometimes sub- sided into sea,and simultaneoustly the great climate change had taken place,until Holocene i.e.10,000 years. Since then,the climate has tended to be the same as present更多还原