Quantifying proportions of different material sources to loess based on a grid search and Monte Carlo model: A case study of the Ili Valley, Central Asia

doi:10.1016/j.palaeo.2020.110210

IEECAS OpenIR > 古环境研究室

	Quantifying proportions of different material sources to loess based on a grid search and Monte Carlo model: A case study of the Ili Valley, Central Asia
	Zeng, Mengxiu 1; Song, Yougui2,3 ; Yang, Huan 1; Li, Yue 2; Cheng, Liangqing 2; Li, Fengquan 1; Zhu, Lidong 1; Wu, Zhangrong 1; Wang, Nengjing 1
通讯作者	Zeng, Mengxiu(mengxiuzeng@zjnu.edu.cn) ; Song, Yougui(syg@ieecas.cn)
	2021-03-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	565 页码:14
摘要	The Ili Valley is among the main distribution areas of loess deposits in Xinjiang Province, Central Asia, while the provenance of Ili loess remains under debate. In this study, samples from near-surface loess, two types of topsoil and modern riverbed sediment were analyzed for their concentrations of major and trace geochemical elements to determine the relative proportions of different provenances of loess deposits in different zones of the Ili Valley. The results obtained by the grid search technology and Monte Carlo model indicated that the proximal material is dominated in the Ili loess. Alluvial-diluvial sediments as the main local material source have significantly influenced loess in the western region of Ili Valley. Moreover, this influence gradually decreases in the eastern region and the Zhaosu Basin. The proportion of modern riverbed sediment in the eastern Ili Valley is significantly lower than that in the Zhaosu Basin and is lowest in the western Ili Valley. However, the proportion of dust and topsoil type-II with the mean value of 11.8% and 7.2%, respectively, is highest in the western Ili Valley and lowest in the Zhaosu Basin. The complex natural background of the Ili Valley can be used to interpret the quantitative results and the geochemical characteristics of Ili loess from different regions. The reliability of the proposed method can be assessed by environmental indicators such as grain size, and geomorphic-hydrological background and other published records.
关键词	Geochemical element Provenance Monte Carlo model Aeolian Topsoil samples Particle size
DOI	10.1016/j.palaeo.2020.110210
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; Natural Science Foundation of Zhejiang Province, China[LQ18D020002] ; Natural Science Foundation of China[41971111] ; Natural Science Foundation of China[41977385] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQGPY2006]
WOS研究方向	Physical Geography ; Geology ; Paleontology
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Foundation of Zhejiang Province, China ; Natural Science Foundation of China ; State Key Laboratory of Loess and Quaternary Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000636759000007
出版者	ELSEVIER
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16361
专题	古环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Zeng, Mengxiu; Song, Yougui
作者单位	1.Zhejiang Normal Univ, Coll Geog & Environm Sci, 688 Yingbin Rd, Jinhua 321004, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Mengxiu,Song, Yougui,Yang, Huan,et al. Quantifying proportions of different material sources to loess based on a grid search and Monte Carlo model: A case study of the Ili Valley, Central Asia[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,565:14.
APA	Zeng, Mengxiu.,Song, Yougui.,Yang, Huan.,Li, Yue.,Cheng, Liangqing.,...&Wang, Nengjing.(2021).Quantifying proportions of different material sources to loess based on a grid search and Monte Carlo model: A case study of the Ili Valley, Central Asia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,565,14.
MLA	Zeng, Mengxiu,et al."Quantifying proportions of different material sources to loess based on a grid search and Monte Carlo model: A case study of the Ili Valley, Central Asia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 565(2021):14.