Fluvial terrace formation and its impacts on early human settlement in the Hanzhong basin, Qinling Mountains, central China

doi:10.1016/j.gloplacha.2019.04.007

IVPP-IR > 中科院古脊椎所（2000年以后）

	Fluvial terrace formation and its impacts on early human settlement in the Hanzhong basin, Qinling Mountains, central China
	Yang, Xun 1; Wang, Xianyan 1; Van Balen, Ronald T.2,3; Prins, Maarten A.2; Wang, Shejiang 4,5; van Buuren, Unze 2; Lu, Huayu 1
	2019-07-01
发表期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
卷号	178 期号:0 页码:1-14
摘要	The Qinling Mountains (QLM) form the climatic boundary between the temperate north and subtropical south of China. Many important Paleolithic archaeological sites located on fluvial terraces in this area have been reported in recent decades. Abundant artifacts have been excavated in silt layers overlying fluvial gravels and coarse sands. These silt layers have thus far been interpreted as aeolian deposits. However, in principle they could also represent (in part) fluvial (floodplain) deposits, especially near the base of fine-grained sequences. Reconstruction of fluvial terrace formation is crucial for the correct interpretation of the environment of hominin occupation. In this paper, two sediment sequences from two Paleolithic sites, located on different terrace levels of the Hanjiang River in the Hanzhong basin, are studied mainly using grain-size and grain-shape analyses. In addition, grain-size distributions have been unraveled by applying end-member modelling to distinguish different sedimentary environments. The results show that three different units can be discriminated in each section. The lower unit, consisting of gravelly sand mixed with fine silt, is interpreted as shallow-channel-fill sediment deposited during the start of the transition from a channel to a floodplain environment. The middle unit comprises a fine-grained, gradually fining-upward sequence, representative a floodplain environment. At its base, it reflects a high-energy floodplain situation; at its top, the sequence is interpreted as a low-energy floodplain environment with aeolian input (settling in static water). The third, uppermost unit consists of aeolian loess interbedded with paleosol(s) and sediments that are interpreted as the results of episodic surface runoff. The gradual transition between the 3 units and the gradual fining upward trend of the middle unit indicates that there is no considerable age gap (no hiatus) between the fluvial- and aeolian sedimentary environments. Stone artifacts have been found in all 3 units, with difference abundance, indicating that both the aeolian and floodplain depositional environments provided favorable living conditions. For the floodplain environment, the resources of water and raw materials (fluvial gravels) for tool making may have offered fundamental resources for hominin settlement.
关键词	Sedimentary environment Floodplain Loess Hominin settlement Grain size Grain shape Hanzhong basin
DOI	10.1016/j.gloplacha.2019.04.007
关键词[WOS]	HANJIANG RIVER VALLEY ; GRAIN-SIZE DISTRIBUTION ; LATE PLEISTOCENE ; SLACKWATER DEPOSITS ; PALEOLITHIC SITES ; LOESS ; MIDDLE ; SEDIMENT ; CLIMATE ; PALEOENVIRONMENT
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41472026] ; National Natural Science Foundation of China[41522101] ; National key research and development program[2016YFA0600500] ; Royal Netherlands Academy of Arts and Sciences (Chinese Exchange Program)[530-5CDP07] ; CAS Strategic Priority Research Program Grant B Macroevolutionary Processes and Paleoenvironments of Major Historical Biota[XDPB05] ; Fundamental Research Funds for the Central Universities[020914380043]
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000471734600001
出版者	ELSEVIER SCIENCE BV
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/10020
专题	中科院古脊椎所（2000年以后）
通讯作者	Wang, Xianyan; Prins, Maarten A.
作者单位	1.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China 2.Vrije Univ Amsterdam, Fac Sci, Dept Earth Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands 3.TNO, Geol Survey Netherlands, Utrecht, Netherlands 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xun,Wang, Xianyan,Van Balen, Ronald T.,et al. Fluvial terrace formation and its impacts on early human settlement in the Hanzhong basin, Qinling Mountains, central China[J]. GLOBAL AND PLANETARY CHANGE,2019,178(0):1-14.
APA	Yang, Xun.,Wang, Xianyan.,Van Balen, Ronald T..,Prins, Maarten A..,Wang, Shejiang.,...&Lu, Huayu.(2019).Fluvial terrace formation and its impacts on early human settlement in the Hanzhong basin, Qinling Mountains, central China.GLOBAL AND PLANETARY CHANGE,178(0),1-14.
MLA	Yang, Xun,et al."Fluvial terrace formation and its impacts on early human settlement in the Hanzhong basin, Qinling Mountains, central China".GLOBAL AND PLANETARY CHANGE 178.0(2019):1-14.

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