Reconstruction Paleoclimate Dased on Sporopollen Record of Re'nacuo Lake,Tibet  

作　　者：LI Hanshi WANG Genhou YUAN Guoli FANG Bin LUO Tongwei YANG Yongqiang 

机构地区：[1]School of the Earth Sciences and Resources,China University of Geosciences [2]School of Water Resources and Environment,China University of Geosciences [3]Inner Mongolia Mining Exploitation Co.LTD

出　　处：《Acta Geologica Sinica(English Edition)》2014年第4期1239-1251,共13页地质学报（英文版）

基　　金：supported by projects of Re’nacuo 1:50000 regional geological survey and State Key Laboratory of Biogeology and Environmental Geology(GBL2135)

摘　　要：The sedimentary sequences since 33 ka B.P. to 10 ka B.P. have been established in the Re＇nacuo-Lake, Gaize area of north Tibet, through a study of a lacustrine section. The climate since 33 ka B.P. to 10 ka B.P. may be divided into two cycle include 5 dry phases and 5 moist phases from reconstructing the paleoclimate through a study of sporopollen analysis. It mainly reflects the general regularity of global climatic change through contrasting with the pale environment in northern hemisphere. Our pollen record reveals a regional climate history similar to those from the neighboring sites, including the GISP2, the Guliya ice core and core RM in Zoige, and thus supports the notion that the Qinghai-Tibetan Plateau acts as an important link between climatic events in the North Atlantic realm and the Asian monsoon domain. The response of the Qinghai-Tibet Plateau to the global climatic change is relatively sensitive.The sedimentary sequences since 33 ka B.P. to 10 ka B.P. have been established in the Re＇nacuo-Lake, Gaize area of north Tibet, through a study of a lacustrine section. The climate since 33 ka B.P. to 10 ka B.P. may be divided into two cycle include 5 dry phases and 5 moist phases from reconstructing the paleoclimate through a study of sporopollen analysis. It mainly reflects the general regularity of global climatic change through contrasting with the pale environment in northern hemisphere. Our pollen record reveals a regional climate history similar to those from the neighboring sites, including the GISP2, the Guliya ice core and core RM in Zoige, and thus supports the notion that the Qinghai-Tibetan Plateau acts as an important link between climatic events in the North Atlantic realm and the Asian monsoon domain. The response of the Qinghai-Tibet Plateau to the global climatic change is relatively sensitive.

关 键 词：TIBET lacustrine deposit terrace SPOROPOLLEN PALEOCLIMATE climate change 

分 类 号：P532[天文地球—古生物学与地层学] P534.42[天文地球—地质学]