Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1177/0959683614523804 |
Dry early Holocene revealed by sand dune accumulation chronology in Bayanbulak Basin (Xinjiang, NW China) | |
Long, Hao1,2; Shen, Ji1; Tsukamoto, Sumiko2; Chen, Jianhui3; Yang, Linhai4; Frechen, Manfred2 | |
通讯作者 | Long, Hao |
来源期刊 | HOLOCENE
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ISSN | 0959-6836 |
EISSN | 1477-0911 |
出版年 | 2014 |
卷号 | 24期号:5页码:614-626 |
英文摘要 | Understanding the Holocene climate changes (especially moisture variation) and their mechanisms in the semiarid-arid Central Asia (SCA) is very important, as water availability is crucial for sustainable developments in this area. This study presents chronostratigraphy of an aeolian sedimentary sequence from Bayanbulak Basin (Xinjiang, NW China), aiming to infer the Holocene moisture history in the SCA. Luminescence dating technique was selected to construct the age framework of the study section. Since the luminescence signal intensity of quartz from the samples was too low to be detected, feldspar was used as an alternative dosimeter. A newly developed post-infrared (IR) IR-stimulated luminescence (IRSL) (pIRIR) dating protocol on K-feldspar was applied to determine the ages of samples. A set of tests on luminescence characteristics was performed and demonstrate that this method is suitable and the resultant ages are reliable. Combined with the stratigraphic investigation on the sand dune/palaeosol section, the results imply a very dry climatic condition characterized by sand dune accumulation at similar to 9-8 kyr, and a wet interval of 5-1.6 kyr when a soil layer was formed. This moisture variation pattern is consistent with that inferred from many lacustrine records in the SCA, suggesting a widespread dry period at 11-8 kyr. The present results appear to challenge a new stalagmite delta O-18 sequence, located nearby to Bayanbulak Basin, which instead suggested a humid early Holocene. |
英文关键词 | Asian monsoon Holocene moisture variation luminescence dating sand dune semiarid-arid Central Asia Westerlies |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000337290800009 |
WOS关键词 | ARID CENTRAL-ASIA ; NORTHERN CHINA ; BOSTEN LAKE ; MOISTURE EVOLUTION ; INDIAN MONSOON ; LUMINESCENCE ; FELDSPAR ; NEBRASKA ; DYNAMICS ; RECORDS |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | 兰州大学 ; 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/182409 |
作者单位 | 1.Chinese Acad Sci NIGLAS, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China; 2.LIAG, Hannover, Germany; 3.Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Beijing 100864, Peoples R China |
推荐引用方式 GB/T 7714 | Long, Hao,Shen, Ji,Tsukamoto, Sumiko,et al. Dry early Holocene revealed by sand dune accumulation chronology in Bayanbulak Basin (Xinjiang, NW China)[J]. 兰州大学, 中国科学院西北生态环境资源研究院,2014,24(5):614-626. |
APA | Long, Hao,Shen, Ji,Tsukamoto, Sumiko,Chen, Jianhui,Yang, Linhai,&Frechen, Manfred.(2014).Dry early Holocene revealed by sand dune accumulation chronology in Bayanbulak Basin (Xinjiang, NW China).HOLOCENE,24(5),614-626. |
MLA | Long, Hao,et al."Dry early Holocene revealed by sand dune accumulation chronology in Bayanbulak Basin (Xinjiang, NW China)".HOLOCENE 24.5(2014):614-626. |
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