中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
Geochemical evidence for provenance diversity of loess in southern China and its implications for glacial aridification of the northern subtropical region

文献类型：期刊论文

作者Han, Long1,2; Hao, Qingzhen1,2,3; Qiao, Yansong4; Wang, Luo1,2,5; Peng, Shuzhen6; Li, Nan7; Gao, Xinbo1,5; Fu, Yu1,2; Xu, Bin1,2,5; Gu, Zhaoyan1,2,5
刊名QUATERNARY SCIENCE REVIEWS
出版日期2019-05-15
卷号212页码:149-163
ISSN号0277-3791
关键词Xiashu loess Provenance Geochemistry Alluvial plain Aridification Last glacial period Huai river Yangtze river
DOI10.1016/j.quascirev.2019.04.002
英文摘要The thick 'Xiashu loess' in southern China is distributed not only in the Yangtze River valley, but also and most extensively in the region between the Qinling Mountains and the lower reaches of the Yangtze River. However, there are few studies of the provenance and climatic implications of the Xiashu loess in this latter region. Here we present the results of a provenance study of Last Glacial loess samples from twenty-two typical Xiashu loess sections, using the major and trace element composition as a provenance indicator. Seventeen of the sites are located to the north of the Yangtze River and our primary aim was to determine the provenance of the Xiashu loess within this region. Our results indicate that the alluvial plain located mainly in the present drainage area of the Huai River was the primary dust source for the Xiashu loess in this region. The occurrence of multiple local dust sources within this alluvial plain, suggested by their geochemical heterogeneity, indicates that the alluvial plain experienced intensified aridity which caused it to become a dust source for local loess deposits in northern subtropical China during the Last Glacial. Our study provides strong evidence to challenge the long-held view that the occurrence of Xiashu loess resulted from the southward incursion of the CLP loess deposits sourced from deserts of the Asian interior, and it confirms the substantial role of aridification of the present humid northern subtropical region for dust emission to the climate system during the Last Glacial. (C) 2019 Elsevier Ltd. All rights reserved.
WOS关键词EASTERN QINLING MOUNTAINS ; RARE-EARTH-ELEMENTS ; LATE QUATERNARY LOESS ; U-PB AGE ; AEOLIAN SANDS ; DUST STORMS ; GRAIN-SIZE ; GEOMORPHOLOGICAL EVIDENCE ; ISOTOPIC CONSTRAINTS ; PALEOSOL SEQUENCE
资助项目National Natural Science Foundation of China[41625010] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41430531] ; National Natural Science Foundation of China[41690114] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Key Research and Development Program[2017YFE0112800]
WOS研究方向Physical Geography ; Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000468707400012
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/92118]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Hao, Qingzhen
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
4.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
5.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
6.Taishan Univ, Key Lab Tourism & Resources Environm Univ Shandon, Tai An 271021, Shandong, Peoples R China
7.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Han, Long,Hao, Qingzhen,Qiao, Yansong,et al. Geochemical evidence for provenance diversity of loess in southern China and its implications for glacial aridification of the northern subtropical region[J]. QUATERNARY SCIENCE REVIEWS,2019,212:149-163.
APA Han, Long.,Hao, Qingzhen.,Qiao, Yansong.,Wang, Luo.,Peng, Shuzhen.,...&Gu, Zhaoyan.(2019).Geochemical evidence for provenance diversity of loess in southern China and its implications for glacial aridification of the northern subtropical region.QUATERNARY SCIENCE REVIEWS,212,149-163.
MLA Han, Long,et al."Geochemical evidence for provenance diversity of loess in southern China and its implications for glacial aridification of the northern subtropical region".QUATERNARY SCIENCE REVIEWS 212(2019):149-163.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。