Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jseaes.2017.11.001 |
Fine-grained quartz OSL dating chronology of loess sequence from southern Tajikistan: Implications for climate change in arid central Asia during MIS 2 | |
Wang, Leibin1; Jia, Jia1; Li, Guoqiang1; Li, Zaijun1; Wang, Xin1; Chen, Fahu1,2![]() | |
通讯作者 | Wang, Leibin ; Jia, Jia |
来源期刊 | JOURNAL OF ASIAN EARTH SCIENCES
![]() |
ISSN | 1367-9120 |
EISSN | 1878-5786 |
出版年 | 2018 |
卷号 | 155页码:116-123 |
英文摘要 | The desert and semi-desert region of arid central Asia is one of the most important areas of middle-latitude dust emission and deposition in the Northern Hemisphere. Marine isotope stage 2 (MIS 2) was the latest and one of the most representative intervals of dust emission from the region, and it is especially important for research into processes of dust transportation and deposition. Here, we report the results of an optically stimulated luminescence study of the Hoalin section in southern Tajikistan, which was deposited during MIS 2. The fine-grained quartz single aliquot regeneration (SAR) approach was used and its reliability was verified by internal checks. In addition, grain-size analyses, calculated dust accumulation rates (DARs) and mass accumulation rates (MARs) were used to reconstruct the pattern of climate change during MIS 2. The mean DAR for southern Tajikistan during MIS 2 was 0.43 m/ka, and the corresponding average MAR was 673 g/cm(2)/a for a non-river-terrace site, which is higher than the average MARs estimated for the central and southern Chinese Loess Plateau (CLP). In contrast to previous suggestions, the high dust DARs and MARs during the LGM indicate a ’cold-dry’ climatic pattern, rather than a ’cold-humid’ pattern. Our results also confirm that the patterns of high dust emission and deposition during the LGM in the mid-latitude arid zone of Asia were synchronous. |
英文关键词 | Loess LGM OSL dating Southern Tajikistan |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000428006300009 |
WOS关键词 | LAST GLACIAL MAXIMUM ; REGENERATIVE-DOSE PROTOCOL ; CHINESE LOESS ; LATE PLEISTOCENE ; WESTERN CHINA ; ILI BASIN ; PALEOSOL SEQUENCE ; LACUSTRINE RECORD ; DUST ACCUMULATION ; LATE QUATERNARY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | 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/2XILL650/210647 |
作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Leibin,Jia, Jia,Li, Guoqiang,et al. Fine-grained quartz OSL dating chronology of loess sequence from southern Tajikistan: Implications for climate change in arid central Asia during MIS 2[J]. 兰州大学,2018,155:116-123. |
APA | Wang, Leibin,Jia, Jia,Li, Guoqiang,Li, Zaijun,Wang, Xin,&Chen, Fahu.(2018).Fine-grained quartz OSL dating chronology of loess sequence from southern Tajikistan: Implications for climate change in arid central Asia during MIS 2.JOURNAL OF ASIAN EARTH SCIENCES,155,116-123. |
MLA | Wang, Leibin,et al."Fine-grained quartz OSL dating chronology of loess sequence from southern Tajikistan: Implications for climate change in arid central Asia during MIS 2".JOURNAL OF ASIAN EARTH SCIENCES 155(2018):116-123. |
条目包含的文件 | 条目无相关文件。 |
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。