THE COMPARISON OF LANZHOU LOESS PROFILE WITH VOSTOK ICE CORE IN ANTARCTICA OVER THE LAST GLACIATION CYCLE  

作　　者：李吉均 朱俊杰 康建成 陈发虎 穆德芬 曹继秀 唐领余 张宇田 潘保田 

机构地区：[1]Geography Department, Lanzhou University, Lanzhou 730000, PRC [2]Nanjing Instirute of Geology and Palaeontology,Academis Sinica,Nanjing 210008, PRC

出　　处：《Science China Chemistry》1992年第4期476-488,共13页中国科学（化学英文版）

基　　金：project supported by the National Natural Science Foundation of China.

摘　　要：Loess near Lanzhou in the late Pleistocene is very sensitive to climatic fluctuations. The Beiyuan terrace profile in Linxia City, of which the curve of susceptibility tallies with the trend of isotopic curves of Vostok 2083 m ice core in Antarctica, is 35m thick. There are five layers of paleosols under Malan loess(L_1). Upper three layers (S_(1-a),S(1-b)and S_(1-c) correspond to three warm stages in last interglaciation, Interstadial of Last Glacial (C stage in Antarctic ice core)was clearly recorded in the Beiyuan profile, in which three layers of paleosols and two of loess were formed. The lowest section of the profile belongs to penultimate glaciation, in which fossils of cold-drought-resistant mammal and mollusc have been discovered.Loess near Lanzhou in the late Pleistocene is very sensitive to climatic fluctuations. The Beiyuan terrace profile in Linxia City, of which the curve of susceptibility tallies with the trend of isotopic curves of Vostok 2083 m ice core in Antarctica, is 35m thick. There are five layers of paleosols under Malan loess（L₁）. Upper three layers (S_1-a,S（1-b）and S_1-c correspond to three warm stages in last interglaciation, Interstadial of Last Glacial （C stage in Antarctic ice core）was clearly recorded in the Beiyuan profile, in which three layers of paleosols and two of loess were formed. The lowest section of the profile belongs to penultimate glaciation, in which fossils of cold-drought-resistant mammal and mollusc have been discovered.

关 键 词：LANZHOU Late PLEISTOCENE LOESS curve of susceptibility ANTARCTIC ice core. 

分 类 号：O6[理学—化学]