干旱区生态环境知识资源中心(Arid): Stratigraphy and its environmental implications of the Late Pleistocene Shuidonggou Formation in the western Ordos Block, North China

Arid

DOI	10.1002/gj.3972
	Stratigraphy and its environmental implications of the Late Pleistocene Shuidonggou Formation in the western Ordos Block, North China
	Liu, Xiaobo; Hu, Jianmin; Shi, Wei; Chen, Hong; Liang, Xia; Li, Mingtao
通讯作者	Liu, XB
来源期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
EISSN	1099-1034
出版年	2020
卷号	55 期号:11 页码:7359-7370
英文摘要	The Late Pleistocene sedimentary strata that is widely developed in North China records the signature of prehistoric human settlement. The Late Palaeolithic Shuidonggou Formation that is mainly distributed in the western Ordos Block of North China is best known for containing abundant palaeontological fossils and palaeolithic artefacts with an age span of similar to 35-20 ka B.P. However, its sequence and chronostratigraphy are poorly understood due to the lack of stratigraphic correlation of a uniform relative stratigraphy, hindering our understanding of the way of human adaptation to the environmental and climatic changes. In this article, analyses of high-resolution stratigraphy of Shuidonggou Formation complemented with chronostratigraphic framework were performed based on our field investigations, Optically Stimulated Luminescence dating and literature survey, to reconstruct environmental and climatic conditions in western Ordos Block in the Late Pleistocene. Stratigraphic correlations and chronological evidence indicate that the sedimentary units of the Shuidonggou Formation are similar to 35-10 ka B.P. in age, and three lithologic units of Shuidonggou Formation that is well approximated on a regional basis were identified: gravel layers that were deposited in a fluvial environment at the bottom, rhythm layers consist of sand layers, and clay layers deposited in a lacustrine environment in the lower part, and cycles composed of lacustrine silt and loess in the upper part. These units are defined by sedimentology, matching to lake levels. Continuous and widely developed clay and sandy clay about 3-10 m thick occur at various levels within river terrace II and littoral deposits located 10-20 m above the current lake level provide evidence for the existence of the high lake level/palaeo-lake in western Ordos Block between similar to 35 and 22 ka B.P. Palaeo-lake shrinking occurred after when lakeshore sand and gravel, as well as sandy facies of aeolian origin, started to accumulate in the study area in 22-17 ka B.P. The development of the palaeo-lake probably had been climate-controlled since the warmer and humid climate conditions suggested by the lower sequences corresponds to the Marine Isotope Stage 3 while the cool and dry climate were identified in upper sequences corresponds to the Last Glaciation Maximum. Besides, the human occupation in the Shuidonggou site was synchronous with the development of the palaeo-lake of the same time window. It is suggested that the evolution of the palaeo-lakes in the Late Pleistocene, together with the environmental effects of climate change, play an important role in the human occupation and survival strategies.
英文关键词	environment human occupation Late Pleistocene North China palaeo-lake Shuidonggou Formation
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000564266500001
WOS关键词	TENGGER DESERT ; TIBETAN PLATEAU ; CLIMATE RECORDS ; KA BP ; LAKE ; SITE ; ICE ; RECONSTRUCTION ; SEDIMENTS ; NINGXIA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325900
作者单位	[Liu, Xiaobo] Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China; [Liu, Xiaobo; Hu, Jianmin; Shi, Wei; Chen, Hong; Liang, Xia] Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China; [Li, Mingtao] China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing, Peoples R China; [Li, Mingtao] China Geol Survey, Mineral Geol Survey, Ningxia Inst, Yinchuan, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaobo,Hu, Jianmin,Shi, Wei,et al. Stratigraphy and its environmental implications of the Late Pleistocene Shuidonggou Formation in the western Ordos Block, North China[J],2020,55(11):7359-7370.
APA	Liu, Xiaobo,Hu, Jianmin,Shi, Wei,Chen, Hong,Liang, Xia,&Li, Mingtao.(2020).Stratigraphy and its environmental implications of the Late Pleistocene Shuidonggou Formation in the western Ordos Block, North China.GEOLOGICAL JOURNAL,55(11),7359-7370.
MLA	Liu, Xiaobo,et al."Stratigraphy and its environmental implications of the Late Pleistocene Shuidonggou Formation in the western Ordos Block, North China".GEOLOGICAL JOURNAL 55.11(2020):7359-7370.