Chronology of the stratum containing the skull of the Dali Man

作     者：YIN Gongming ZHAO Hua YIN Jinhui LU Yanchou 

作者机构：Institute of GeologyChina Seismological BureauBeijing 100029China State Key Lab Loess&Quaternary GeologyChinese Academy of ScienceXi’an 710075China Institute of Hydrogeology and Environmental GeologyCAGS 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2002年第47卷第15期

页      面：1302-1307页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 49702032) 

主　　题：Dali Man stratigraphy chronology. 

摘      要：The field investigations of geomorphology and Quaternary sediment sequences show that the sediment stratigraphic profile containing the skull of the Homo sapiens Daliensis (Dali Man) at Tianshuigou trench, Jiefang Village (109°44’E, 34°52’N ), Dali County, Shaanxi Province, is composed of the loess-paleosol sequence, 17.3 m thick, in the upper part, and the alluvial silts, fine sands and sandy gravels interbedded, 15.4 m thick, in the lower part. There are the well developed layers L1, S1, L2 and S2 in the loess-paleosol sequence of the profile, which are comparable to those of the Luochuan loess section on the basis of magnetic succeptibility measurements and IRSL dating of the loess samples. An alluvial gravel layer, where the skull of the Dali Man was discovered, is in 13 m beneath the bottom of paleosol S2, implying that, the age of the Dali Man must be older than about 247 kaBP when the paleosol S2 began to be developed. The samples of mammal animal tooth and shell fossils from the gravel layer