The depositional Environment at Shuidonggou Locality 2 in Northwest China at ～72-18 kaBP  

作　　者：LIU Decheng GAO Xing LIU Enfa PEI Shuwen CHEN Fuyou ZHANG Shuqin 

机构地区：[1]Institute of Vertebrate Paleontology and Paleoanthtopology,the Laboratory of Human Evolution,Chinese Academy of Sciences [2]The Fourth Geological Exploration Institute of Henan Geology and Mineral Bureau [3]Research Center of Paleontology&Stratigraphy,Jilin University

出　　处：《Acta Geologica Sinica(English Edition)》2012年第6期1539-1546,共8页地质学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 40902013);"Strategic Priority Research Program - Climate Change:Carbon Budget and Relevant Issues" of the ChineseAcademy of Sciences (Grant No.XDA05130202)

摘　　要：Shuidonggou site has abundant Paleolithic remains of Late Pleistocene deposition. Studying the evolution of depositional environments is essential to the comprehensive understanding of the living conditions of ancient populations. To reconstruct the depositional environment at Shuidonggou, we carried out archaeological excavations and collected systematic deposition samples at the key position of Shuidonggou Locality 2 for grain size analysis and sporopollen statistics. The environmental evolution around the Shuidonggou site generally underwent four stages at ~72-18 kaBP. During the first stage （~72-41 kaBP）, the river developed with gravel and sand stratums. During the second stage （41-34 kaBP）, a swamp with numerous aquatic plants formed. In the third stage （34-29 kaBP）, site formation was characterized by shallow lake depositional conditions; the climate was relatively warm and humid. The marginal bank depositional conditions deteriorated during the fourth stage （29-18 kaBP）, and the site underwent several dry events; the climate also became drier and colder.Shuidonggou site has abundant Paleolithic remains of Late Pleistocene deposition. Studying the evolution of depositional environments is essential to the comprehensive understanding of the living conditions of ancient populations. To reconstruct the depositional environment at Shuidonggou, we carried out archaeological excavations and collected systematic deposition samples at the key position of Shuidonggou Locality 2 for grain size analysis and sporopollen statistics. The environmental evolution around the Shuidonggou site generally underwent four stages at ~72-18 kaBP. During the first stage （~72-41 kaBP）, the river developed with gravel and sand stratums. During the second stage （41-34 kaBP）, a swamp with numerous aquatic plants formed. In the third stage （34-29 kaBP）, site formation was characterized by shallow lake depositional conditions; the climate was relatively warm and humid. The marginal bank depositional conditions deteriorated during the fourth stage （29-18 kaBP）, and the site underwent several dry events; the climate also became drier and colder.

关 键 词：Shuidonggou site depositional environment grain size SPOROPOLLEN Upper Paleolithic 

分 类 号：K878[历史地理—考古学及博物馆学]