HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS
文献类型：期刊论文
| 作者 | Chen, Qingmin2; Zhou, Weijian1; Wang, Zhe2; Xian, Feng1; Burr, George S.1 |
| 刊名 | RADIOCARBON
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 61期号:1页码:51-65 |
| 关键词 | Duoerji East Asian monsoon hydrogen isotopes n-fatty acids precipitation records |
| ISSN号 | 0033-8222 |
| DOI | 10.1017/RDC.2018.75 |
| 通讯作者 | Zhou, Weijian(weijian@loess.llqg.ac.cn) |
| 英文摘要 | The Inner Mongolian Plateau lies along the northern limit reached by the East Asian summer monsoon. This geographic setting makes it especially sensitive to environmental change and an excellent site for understanding Quaternary East Asian monsoon variability. In this study we present new results of hydrogen isotopic compositions of fatty acids extracted from sediments, which were used to construct Holocene paleoprecipitation (or moisture) changes in Northern China. The hydrogen isotopic composition (D/H ratio) of n-acids in the sedimentary sequence of the Duoerji peat. Inner Mongolia, was determined with gas chromatography and mass spectrometry. Changes in the precipitation from middle Inner Mongolia are recorded by the D/H ratio of n-C-20, n-C-22, n-C-24, n-C-26, n-C-28 acids (delta D). From 10-9 ka, the relatively high delta D values indicate reduced precipitation in the Early Holocene. Subsequently, increased precipitation is reflected by reduced delta D values from 9-5.5 ka. After 5.5 ka, gradually increasing delta D values record an overall decrease in precipitation. The precipitation trends established for the Duoerji sequence are consistent with other major paleoclimate proxies in the East Asian monsoon region, especially with a distinct Holocene optimum of increased monsoonal activity from 9-5.5 ka. The delta D resulting paleo-precipitation record clearly shows that the Holocene climate in Northern China is basically controlled by the insolation changes. |
| WOS关键词 | GRAIN-SIZE DISTRIBUTION ; ASIAN MONSOON ; N-ALKANES ; LEAF WAXES ; LACUSTRINE SEDIMENTS ; HIGH-RESOLUTION ; CLIMATIC-CHANGE ; NORTHERN IDAHO ; LAKE-SEDIMENTS ; D/H RATIOS |
| 资助项目 | National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Shaanxi Public Welfare Special Project of geological prospecting |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000458372300004 |
| 出版者 | UNIV ARIZONA DEPT GEOSCIENCES |
| 资助机构 | National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Shaanxi Public Welfare Special Project of geological prospecting |
| 源URL | [http://ir.ieecas.cn/handle/361006/14341]  |
| 专题 | 地球环境研究所_加速器质谱中心 |
| 通讯作者 | Zhou, Weijian |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Shaanxi Inst Geol Survey, Shaanxi Ctr Geol Survey, Xian 710068, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Qingmin,Zhou, Weijian,Wang, Zhe,et al. HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS[J]. RADIOCARBON,2019,61(1):51-65. |
| APA | Chen, Qingmin,Zhou, Weijian,Wang, Zhe,Xian, Feng,&Burr, George S..(2019).HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS.RADIOCARBON,61(1),51-65. |
| MLA | Chen, Qingmin,et al."HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS".RADIOCARBON 61.1(2019):51-65. |
入库方式： OAI收割
来源：地球环境研究所
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