Arid
DOI10.1016/j.jseaes.2017.11.022
Distribution, provenance, and onset of the Xiashu Loess in Southeast China with paleoclimatic implications
Wang, Xiaoyong1; Lu, Huayu1; Zhang, Hanzhi1; Wu, Jiang1; Hou, Xiaoxue1,2; Fu, Yu1,3; Geng, Junyan1,3
通讯作者Wang, Xiaoyong
来源期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
EISSN1878-5786
出版年2018
卷号155页码:180-187
英文摘要

Loess deposits are important archives of past climate change in subtropical China, where long-term terrestrial records are scarce. However, only a few long-term records with reliable dating were reported in Jiangsu Province, where loess deposits in southeastern China were first discovered and designated as the Xiashu Loess. Moreover, the provenance of the Xiashu Loess is still controversial. This study presents the magnetostratigraphy and detrital zircon U-Pb age results of loess deposits at Zhoujiashan in Nanjing, Jiangsu Province. To date, this section (with basal age of approximately 0.88 Ma) may be the oldest loess deposits discovered in southeastern China. Based on the detrital zircon U-Pb ages of the Zhoujiashan section, together with published results of geochemistry, geomorphology, sedimentology, and meteorology, we propose that the Xiashu Loess has two mixed sources. Local materials derived from the Yangtze River Basin (including exposed river/lake beds, floodplains, and mountains) served as a major contributor. The distal eolian dust that originated from the arid areas of North China (including deserts, piedmont alluvial fans, and drylands) played a minor role in the formation process of the Xiashu Loess. The nearly synchronous onset age (approximately 0.88-0.85 Ma) of the Xiashu Loess was attributed to a regional environmental event during the middle Pleistocene transition.


英文关键词Southeast China Xiashu Loess Provenance Magnetostratigraphy Loess chronology
类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E
WOS记录号WOS:000428006300017
WOS关键词GEOCHEMICAL CHARACTERISTICS ; PALEOSOL SEQUENCES ; MONSOON INTENSITY ; EOLIAN DEPOSITS ; RED EARTH ; SEDIMENTS ; PLATEAU ; MAGNETISM ; CLIMATE ; GRAINS
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
来源机构南京大学 ; 中国科学院地质与地球物理研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/210649
作者单位1.Nanjing Univ, Sch Geog & Ocean Sci, Jiangsu Collaborat Innovat Ctr Climate Change, Nanjing 210023, Jiangsu, Peoples R China;
2.Johns Hopkins Univ, Dept Environm Hlth & Engn, Baltimore, MD 21218 USA;
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714
Wang, Xiaoyong,Lu, Huayu,Zhang, Hanzhi,et al. Distribution, provenance, and onset of the Xiashu Loess in Southeast China with paleoclimatic implications[J]. 南京大学, 中国科学院地质与地球物理研究所,2018,155:180-187.
APA Wang, Xiaoyong.,Lu, Huayu.,Zhang, Hanzhi.,Wu, Jiang.,Hou, Xiaoxue.,...&Geng, Junyan.(2018).Distribution, provenance, and onset of the Xiashu Loess in Southeast China with paleoclimatic implications.JOURNAL OF ASIAN EARTH SCIENCES,155,180-187.
MLA Wang, Xiaoyong,et al."Distribution, provenance, and onset of the Xiashu Loess in Southeast China with paleoclimatic implications".JOURNAL OF ASIAN EARTH SCIENCES 155(2018):180-187.
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