Pollen Assemblage And Palaeoenvironment Since Quaternary In The Luannan Region

Quaternary paleoclimate recovery has been one of the hot issues which the environment geology, quaternary geology, and other areas has explored the mostly.The late tertiary, cold climate migrated from the high latitudes to low latitudes,making the world into a cold period, which has been the marked the quaternary. So the quaternary is a significant period for human survival.There are many methods for the quaternary climat environment restoration, but the pollen analysis,for its high resolution, sensitivity, visual and accuracy,has been widely used in the recovery of the paleoclimate of quaternary. In Eastern Hebei plain since the 1950 s,a lot of scholars and geological workers worked with quaternary sedimentary facies of this area,and the quaternary paleoenvironment,the formation of the luanhe river alluvial fan, luanhe river studied problems such as the growth of the change,too.As we can see,a lot of achievements about the quaternary research in the region has been done by predecessors.But works for the whole of quaternary pollen and ancient environment restoration is less,restricted to Guo bang Tong, Shu xian Fan, Yunzhuang Hu person’s work only.This work selected the ZK02 drill hole in Huopao,Ben town village of Luannan,for more comprehensive investigation and studing of the quaternary system. The time scale of the research work involving the whole quaternary period. We did a comprehensive work of using quaternary survey and researching methods such as granularity, paleomagnetism, carbon 14, and Optically Stimulated Luminescence.We also refered to the results of analysis of the lithofacies and paleogeographic.At last we achieved our goal of preliminary restoring the evolution sequence of ancient environmental in Quaternary period in Luannan area.