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Grain size characteristics of the sand silt layers in the ancient delta of the dried Lop Nur lake (east Tarim Basin) and their environmental implications
Lin, Yongchong1,2; Mu, Guijin2; Xu, Lishuai3; Zhao, Xue4
通讯作者Lin, Yongchong(linyongchong@itpcas.ac.cn) ; Zhao, Xue(496760641@qq.com)
2021-11-01
发表期刊ARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
卷号14期号:21页码:9
摘要Grain size characteristics of sediments are an effective index for the depositional environment. However, whether grain size is an accurate indicator for the formation environment is still obscure. In this study, two main types of lithology can be found in the yardang sediments from the Loulan area (Lop Nur): sand-silt layers and clay-silt layers. These two types are common in arid northwestern China. The clay-silt layers were primarily composed of lacustrine-swamp deposits, whereas the sand silt layers were formed under fluvial conditions based on geomorphic and stratigraphic lithologic evidence. However, grain size characteristics of the sand-silt layers, such as grain size distribution, C-M diagram, and grain size parameters, were consistent with that of the aeolian deposits. The study of the field deposition environment indicated that the sand-silt layers were fluvial sediments of materials originating from the aeolian sediments transported over a short distance and deposited by floods. As a result, the fluvial sediments exhibited the grain size characteristics of aeolian sediments. This indicates that some sediments may retain different depositional environment information, having undergone transportation and deposition processes. Therefore, when using grain size characteristics to determine the depositional environment, field deposition environment investigation should be combined with other environmental proxy indicators.
关键词Fluvial sediment Aeolian deposit Depositional environment Lop Nur Sahu formula
DOI10.1007/s12517-021-08630-x
关键词[WOS]SOIL SEQUENCE ; ORIGIN ; CLIMATE ; CHINA ; SEDIMENTS ; YARDANGS ; XINJIANG ; PLATEAU ; RECORD
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China (NSFC)[41601012] ; Middle-aged and Young Teacher Education Project of Fujian Province, China[JAT190365] ; College Cultivating Program for Outstanding Young Scientific Talents of Fujian Province ; Fund of Shanxi Agricultural University[2016YJ16]
WOS研究方向Geology
项目资助者National Natural Science Foundation of China (NSFC) ; Middle-aged and Young Teacher Education Project of Fujian Province, China ; College Cultivating Program for Outstanding Young Scientific Talents of Fujian Province ; Fund of Shanxi Agricultural University
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000712290800012
出版者SPRINGER HEIDELBERG
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/17170
专题加速器质谱中心
通讯作者Lin, Yongchong; Zhao, Xue
作者单位1.Minnan Normal Univ, Sch Hist & Geog, Zhangzhou 363500, Peoples R China
2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
3.Shanxi Agr Univ, Coll Resources & Environm, Jinzhong, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China
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GB/T 7714
Lin, Yongchong,Mu, Guijin,Xu, Lishuai,et al. Grain size characteristics of the sand silt layers in the ancient delta of the dried Lop Nur lake (east Tarim Basin) and their environmental implications[J]. ARABIAN JOURNAL OF GEOSCIENCES,2021,14(21):9.
APA Lin, Yongchong,Mu, Guijin,Xu, Lishuai,&Zhao, Xue.(2021).Grain size characteristics of the sand silt layers in the ancient delta of the dried Lop Nur lake (east Tarim Basin) and their environmental implications.ARABIAN JOURNAL OF GEOSCIENCES,14(21),9.
MLA Lin, Yongchong,et al."Grain size characteristics of the sand silt layers in the ancient delta of the dried Lop Nur lake (east Tarim Basin) and their environmental implications".ARABIAN JOURNAL OF GEOSCIENCES 14.21(2021):9.
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