Arid
DOI10.1016/j.aeolia.2015.05.002
Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene
Ma, Long1,2; Sun, Youbin1; Tada, Ryuji3; Yan, Yan1,2; Chen, Hongyun4; Lin, Min5; Nagashima, Kana6
通讯作者Sun, Youbin
来源期刊AEOLIAN RESEARCH
ISSN1875-9637
EISSN2212-1684
出版年2015
卷号18页码:1-9
英文摘要

The evolution of the provenance of aeolian deposits on the Chinese Loess Plateau (CLP) is closely linked to changes in source aridity and dust transport dynamics. Although previous studies have revealed that the provenance of Chinese aeolian deposits may have fluctuated on tectonic timescales, the exact timing and cause of the provenance shifts remain poorly constrained due to limitations of the isotopic and mineralogical tracers used. Here we report the results of electron spin resonance (ESR) signal intensity and crystallinity index (CI) of fine-grained (<16 mu m) quartz isolated from two aeolian sequences on the CLP, in order to address tectonic-scale shifts in dust provenance over the last similar to 23.5 Ma. The ESR-CI results spanning the interval similar to 7-5 Ma for two aeolian sequences are comparable, implying a broadly similar provenance of dust deposits over the entire CLP. The ESR-CI values are lower after similar to 7 Ma than before similar to 9.5 Ma, indicating that a significant provenance shift occurred during similar to 9.5-7 Ma. Comparison of the ESR-CI results for fine-grained quartz in desert surface samples and for the loess and Red Clay sequences indicates that the provenance shift may have been caused by increased dust input from the Mongolian Gobi and western China (i.e., the Taklimakan desert) since the late Miocene. The combination of our results with regional tectonic evidence and global climate record suggests that tectonically-driven climate changes in the dust sources may have played a dominant role in driving the late Miocene provenance shift. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Chinese Loess Plateau Aeolian deposits Quartz ESR signal intensity Crystallinity index Provenance change
类型Article
语种英语
国家Peoples R China ; Japan
收录类别SCI-E
WOS记录号WOS:000362134800001
WOS关键词NORTHERN TIBETAN PLATEAU ; PAST 8 MA ; ASIAN DUST ; TARIM BASIN ; EOLIAN DEPOSITS ; ISOTOPIC VARIATIONS ; WINTER MONSOON ; WESTERN GANSU ; DRILL CORE ; UPLIFT
WOS类目Geography, Physical
WOS研究方向Physical Geography
来源机构中国科学院地球环境研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185494
作者单位1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Univ Tokyo, Dept Earth & Planetary Sci, Grad Sch Sci, Tokyo 1130033, Japan;
4.Chinese Acad Geol Sci, Res Ctr Loess & Global Changes, Inst Hydrogeol & Environm Geol, Shijiazhuang 050803, Peoples R China;
5.China Inst Atom Energy, Radiometrol Ctr, Beijing 102413, Peoples R China;
6.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Res & Dev Ctr Global Change, Yokosuka, Kanagawa 2370061, Japan
推荐引用方式
GB/T 7714
Ma, Long,Sun, Youbin,Tada, Ryuji,et al. Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene[J]. 中国科学院地球环境研究所,2015,18:1-9.
APA Ma, Long.,Sun, Youbin.,Tada, Ryuji.,Yan, Yan.,Chen, Hongyun.,...&Nagashima, Kana.(2015).Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene.AEOLIAN RESEARCH,18,1-9.
MLA Ma, Long,et al."Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene".AEOLIAN RESEARCH 18(2015):1-9.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Ma, Long]的文章
[Sun, Youbin]的文章
[Tada, Ryuji]的文章
百度学术
百度学术中相似的文章
[Ma, Long]的文章
[Sun, Youbin]的文章
[Tada, Ryuji]的文章
必应学术
必应学术中相似的文章
[Ma, Long]的文章
[Sun, Youbin]的文章
[Tada, Ryuji]的文章
相关权益政策
暂无数据
收藏/分享

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。