资源环境学院机构知识库

Institutional Repository, College of Earth Environmental Sciences

 

兰州大学机构库  > 资源环境学院  > 期刊论文
题名: Variations in the Iron Mineralogy of a Loess Section in Tajikistan During the Mid-Pleistocene and Late Pleistocene: Implications for the Climatic Evolution in Central Asia
作者: Jia, J; Lu, H; Wang, YJ; Xia, DS
收录类别: SCIE
出版日期: 2018-04
刊名: GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
卷号: 19, 期号:3, 页码:1244-1258
出版者: AGU
出版地: WASHINGTON
英文摘要: The loess sequences in Tajikistan are an important archive of information about the development of climate and atmospheric circulation in central Asia during the Pleistocene. Here we present the results of an iron mineralogical study of a loess sequence in Tajikistan to reconstruct paleoclimate evolution during the mid-Pleistocene and late Pleistocene. The record indicates that interglacial intervals were relatively humid and glacials were dry. We propose a shift in the character of the interglacial climate of the region to more humid after beginning of MIS 9; however, temperature was relatively stable. The location and intensity of Westerlies have a close link with Asian Summer Monsoon (ASM) circulations. From the beginning of MIS 9, there was a southward movement of the Westerlies circulation, which corresponded to a retreat of the Indian Summer Monsoon (ISM). A similar relationship also existed between the East Asian Summer Monsoon (EASM) circulation and the Westerlies, which is evidenced by the formation of the most weakly developed soil unit in the EASM-dominated regions during MIS 9, in contrast with the formation of the most strongly developed soil unit in the Westerlies-dominated regions. As conditions in the areas of loess deposition became more humid, the sedimentary basins which are the dust source areas became progressively more arid. The aridification of the source areas may be the result of increased Northern Hemisphere ice volume and accelerated high mountains and/or plateaus uplift in the surrounding regions.
关键词: Tajikistan loess ; iron mineralogy ; magnetic susceptibility ; Westerlies ; Asian Monsoon ; mid-Pleistocene and late Pleistocene
作者部门: [Jia, Jia ; Lu, Hao ; Wang, Youjun ; Xia, Dunsheng] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab West Chinas Environm Syst, MOE, Lanzhou, Gansu, Peoples R China
通讯作者: Jia, J (reprint author), Lanzhou Univ, Coll Earth & Environm Sci, Key Lab West Chinas Environm Syst, MOE, Lanzhou, Gansu, Peoples R China.
学科分类: Geochemistry & Geophysics
文章类型: Article
所属项目编号: National Natural Science Foundation of China [41771213]
所属项目名称: 国家自然科学基金项目
项目资助者: NSFC
语种: 英语
DOI: 10.1002/2017GC007371
ISSN号: 1525-2027
WOS记录号: WOS:000434110500015
第一机构:
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/196032
Appears in Collections:资源环境学院_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Jia, J,Lu, H,Wang, YJ,et al. Variations in the Iron Mineralogy of a Loess Section in Tajikistan During the Mid-Pleistocene and Late Pleistocene: Implications for the Climatic Evolution in Central Asia[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2018,19(3):1244-1258.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Altmetrics Score
 
Google Scholar
Similar articles in Google Scholar
[Jia, J]'s Articles
[Lu, H]'s Articles
[Wang, YJ]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Jia, J]‘s Articles
[Lu, H]‘s Articles
[Wang, YJ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Email:
Passwd
验 证:
换一张
Have you forgotten your password? Log In
Copyright © 2007-2018  兰州大学 - Feedback
Powered by CSpace