摘要
本文对南襄盆地南部更新世沉积物进行了系统的孢粉分析,建立了8个孢粉组合带,研究表明:本区更新世以来的古孢粉代表的植被类型具有北亚热带向暖温带过渡性质,所反映的古气候总体上是温暖的,未出现过严寒的冰期气候,各时段的气温差异不大,而干湿变化比较明显,可划分出四次干燥期和三次湿润期,从而揭示了更新世气候演变的规律。本次研究所获取的丰富孢粉化石,填补了南襄盆地南部第四纪孢粉研究的空缺,为第四纪地层的划分与对比和古气候环境的再造提供了重要依据。
This paper has systematically studied the Pleistocene sporopollen of the South Nanxiang Basin. Based on the distribution and abundance of the palynomorphs 8 sporopollen assemblages have been described in the paper. These assemblages indicate that the Pleistocene vegetation type possesses characters of the north subtropical and temperate climate, therefore, there is no evidence of the elimate of glacial period.The temperatures were nearly the same, but arid and humid climates were obviously alternated in different periods. The Pleistocene climates could be divided into four arid periods and three humid periods.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1991年第6期609-620,共12页
Earth Science-Journal of China University of Geosciences
关键词
孢粉组合
古气候
更新世
湖北
Pleistocene,sporopollen assemblages, paleoclimate,Nanxiang Basin, Hubei Province.
