Polypedogenic case of loess overlying red clay as a response to the Last Glacial-Interglacial cycle in mid-subtropical Southeast China

ISL OpenIR > 青海盐湖研究所知识仓储

	Polypedogenic case of loess overlying red clay as a response to the Last Glacial-Interglacial cycle in mid-subtropical Southeast China
	Hu, Xue-Feng 1,2; Du, Yan 1; Liu, Xiang-Jun 3; Zhang, Gan-Lin 2; Jiang, Ying 1; Xue, Yong 1
	2015-03-01
发表期刊	AEOLIAN RESEARCH
卷号	16 页码:125-142
关键词	Red Clay (Rc) Loess Mid-subtropical China Optically Stimulated Luminescence (Osl) Dating Last Glacial-interglacial Cycle
摘要	To study the paleoclimatic implications of the loess-like Yellow-brown Earth (YBE) overlying red clay (RC) along the Yangtze River, mid-subtropical Southeast China, four YBE-RC profiles in southern Anhui Province were investigated. Grain-size and geochemical characteristics indicated that the YBE is homologous to the aeolian Xiashu Loess; and the underlying RC, sub-divided into uniform RC (URC) and reticulate RC (RRC), is more intensively weathered but also exhibits aeolian dust characteristics. Optically stimulated luminescence (OSL) dating indicated that the YBE was formed during the Last Glacial, the RRC mainly during the Last Interglacial, and the URC during the transitional period between the YBE and RC. The YBE-RC transition reflects a significant paleoclimatic change in mid-subtropical China during the Last Glacial-Interglacial cycle. Sub-events of the Last Glacial, correlated with the marine isotopic stages (MIS) 2 and 3, can be identified within the YBE; however, those of the Last Interglacial, potential correlated with MIS 5a-5e, cannot be identified within the RRC possibly due to paleoclimatic overprinting. The rubification had been replaced by loess deposition along the Yangtze River since the early Last Glacial. With both highly weathered and aeolian-dust characteristics, the underlying RRC may indicate paleoclimatic instability given the multiple alternations between loess deposition and rubification of the Last Interglacial. The climatic change during the Last Glacial-Interglacial cycle significantly influenced the pedogenesis and made soil diversified in the study areas. (C) 2015 Elsevier B.V. All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5564
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Shanghai Univ, Sch Environm & Chem Engn, Dept Environm Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil Sci & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xue-Feng,Du, Yan,Liu, Xiang-Jun,et al. Polypedogenic case of loess overlying red clay as a response to the Last Glacial-Interglacial cycle in mid-subtropical Southeast China[J]. AEOLIAN RESEARCH,2015,16:125-142.
APA	Hu, Xue-Feng,Du, Yan,Liu, Xiang-Jun,Zhang, Gan-Lin,Jiang, Ying,&Xue, Yong.(2015).Polypedogenic case of loess overlying red clay as a response to the Last Glacial-Interglacial cycle in mid-subtropical Southeast China.AEOLIAN RESEARCH,16,125-142.
MLA	Hu, Xue-Feng,et al."Polypedogenic case of loess overlying red clay as a response to the Last Glacial-Interglacial cycle in mid-subtropical Southeast China".AEOLIAN RESEARCH 16(2015):125-142.