Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.yqres.2013.03.003 |
Late Quaternary aeolian activity in Gonghe Basin, northeastern Qinghai-Tibetan Plateau, China | |
Qiang, Mingrui1; Chen, Fahu1![]() | |
通讯作者 | Qiang, Mingrui |
来源期刊 | QUATERNARY RESEARCH
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ISSN | 0033-5894 |
EISSN | 1096-0287 |
出版年 | 2013 |
卷号 | 79期号:3页码:403-412 |
英文摘要 | Aeolian deposits at four sites in the Gonghe Basin were used to reconstruct the history of aeolian activity over the late Quaternary. These deposits include well-sorted aeolian sand, paleosols and/or loess. Aeolian sand represents dune-field expansion and/or dune buildup, whereas paleosols indicate stabilization of dunes, accompanying ameliorated vegetation cover. On the basis of 25 dates by optically stimulated luminescence (OSL), it appears that aeolian activities occurred episodically at 33.5, 20.3, 13.9, 11.8-11.0, 9.4, 7.8, and 5.7 (5.5) ka, which is largely consistent with the recent findings from the adjacent semi-arid areas. Aeolian sand mobility occurring during the early to mid Holocene conflicts with a climatic optimum inferred from lacustrine records in the northeastern Qinghai-Tibetan Plateau. This inconsistency may be resolved by interpreting aeolian activity as a response to decreased effective moisture due to enhanced evaporation, induced by higher summer insolation at that time, together with local terrain and its effects on moisture. Our results suggest that aeolian sand and paleosol cannot be simply ascribed to regional dry and wet climates, respectively, and they most likely reflect changes in effective moisture. (C) 2013 University of Washington. Published by Elsevier Inc. All rights reserved. |
英文关键词 | Aeolian activity Aeolian sand Paleosol Luminescence dating Gonghe Basin |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000319308100009 |
WOS关键词 | POSSIBLE FORCING MECHANISMS ; HOLOCENE CLIMATIC-CHANGE ; ASIAN SUMMER MONSOON ; LAKE AREA ; HIGH-RESOLUTION ; NORTHERN CHINA ; OSL CHRONOLOGY ; LOESS PLATEAU ; PALEOCLIMATIC IMPLICATIONS ; ENVIRONMENTAL-CHANGES |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179623 |
作者单位 | 1.Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Res Sch Arid Environm & Climate Change, Lanzhou 730000, Peoples R China; 2.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Peoples R China |
推荐引用方式 GB/T 7714 | Qiang, Mingrui,Chen, Fahu,Song, Lei,et al. Late Quaternary aeolian activity in Gonghe Basin, northeastern Qinghai-Tibetan Plateau, China[J]. 兰州大学,2013,79(3):403-412. |
APA | Qiang, Mingrui,Chen, Fahu,Song, Lei,Liu, Xingxing,Li, Mingzhi,&Wang, Qin.(2013).Late Quaternary aeolian activity in Gonghe Basin, northeastern Qinghai-Tibetan Plateau, China.QUATERNARY RESEARCH,79(3),403-412. |
MLA | Qiang, Mingrui,et al."Late Quaternary aeolian activity in Gonghe Basin, northeastern Qinghai-Tibetan Plateau, China".QUATERNARY RESEARCH 79.3(2013):403-412. |
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Late Quaternary aeol(1591KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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