Grain size variation in two lakes from margin of Asian Summer Monsoon and its paleoclimate implications

doi:10.1016/j.palaeo.2021.110295

	Grain size variation in two lakes from margin of Asian Summer Monsoon and its paleoclimate implications
	Ming, Guodong 2,3,4; Zhou, Weijian 3,4,6; Wang, Hong 7; Shu, Peixian 3,4; Cheng, Peng 1,3,4; Liu, Taibei 5; Zhou, Jie 3,4,6
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2021-04-01
卷号	567 页码:14
关键词	Polymodal sediments Mathematical unmixing Process-clast regimes Climate variability Eolian input
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2021.110295
通讯作者	Zhou, Weijian(weijian@loess.llqg.ac.cn)
英文摘要	A wealth of research has demonstrated that polymodal grain/particle size distributions (GSD or PSD) in lake sediments can be mathematically decomposed to serve as a more precise tool for paleoenvironmental reconstructions. However, linking grain size subcomponents to specific environmental parameters is sometimes ambiguous, as grain size in lake sediments depends on local characteristics of individual lakes. In view of this, illustrative case studies with widespread practical significance are needed. Here, GSD datasets of two lake sediments from the Asian Summer Monsoon (ASM) marginal zone were decomposed and compared with nearby surficial lacustrine/eolian sediments with clear geological origins, to study the dominant sedimentary processes-grain size regimes of these two representative lakes. The decomposition and comparison clarify the geologic properties of certain grain size parameters and minimizes extraneous signals. Based on this information, we interpret certain size fractions as regional climate indicators associated with ASM intensity changes. We also consider centennial-timescale climate variability during the last half of the Holocene, and discuss the driving forces controlling centennial moisture variability in the studied area.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40010100] ; Open-end Fund Program of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1715]
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000636761000042
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; Open-end Fund Program of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16237]
专题	地球环境研究所_加速器质谱中心
通讯作者	Zhou, Weijian
作者单位	1.Xi An Jiao Tong Univ, Xian 710049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xian Ams Ctr IEECAS, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China 4.Chinese Acad Sci IEECAS, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.CAGS, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China 6.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China 7.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Ming, Guodong,Zhou, Weijian,Wang, Hong,et al. Grain size variation in two lakes from margin of Asian Summer Monsoon and its paleoclimate implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,567:14.
APA	Ming, Guodong.,Zhou, Weijian.,Wang, Hong.,Shu, Peixian.,Cheng, Peng.,...&Zhou, Jie.(2021).Grain size variation in two lakes from margin of Asian Summer Monsoon and its paleoclimate implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,567,14.
MLA	Ming, Guodong,et al."Grain size variation in two lakes from margin of Asian Summer Monsoon and its paleoclimate implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 567(2021):14.