新疆库木库里盆地渐新—上新统孢粉组合特征与古气候演变  

CLIMATE EVOLUTION AND COMPOSIONAL FEATURES OF SPOROPOLLEN IN THE OLIGOCENE-PLIOCENE SERIES OF THE KUMUKULI BASIN IN XINJIANG

作　　者：肖爱芳[1] 黎敦朋[1] 张汉军 李新林 

机构地区：[1]陕西省地质调查院

出　　处：《陕西地质》2003年第1期36-44,共9页Geology of Shaanxi

摘　　要：通过新疆东昆仑库木库里盆地古近—新近系孢粉分析 ,将渐新—上新统孢粉划分为 7个组合带。根据孢粉组合特征 ,探讨了造山带上叠库木库里盆地渐新—上新世由稀树草原—森林—森林草原—荒漠草原—森林草原的古植被的演替与暖→冷→暖→冷的古气候演变特征 ,得出至上新世末期昆仑山海拔已达到 30 0 0m左右的高度 。Sporopollen analysis of the Paleo-near System in the Kumukuli basin eastern Kunlun of Xinjiang divided the sporopollen of the Oligocene Pliocene series into seven compositions. The evolution features of the paleoclimate changing in warm cold warm cold and the alternation of the paleobotany from spars tree grassland forest forest grassland desert grassland forest grassland in the Oligocene Pliocene series of the Kumukuli in the orogenic zone discussed in this paper have made a conclusion that the Kunlun Mountain was up to an elevation above the sea level about 3,000m in the end of Pliocene series.

关 键 词：新疆 库木库里盆地 孢粉组合 古气候 造山带 渐新-上新世 

分 类 号：P532[天文地球—古生物学与地层学]