| Long-term Pleistocene aridification and possible linkage to high-latitude forcing: New evidence from grain size and magnetic susceptibility proxies from loess-paleosol record in northeastern China | |
| Zeng, Lin1,3; Lu, Huayu1; Yi, Shuangwen1; Stevens, Thomas2; Xu, Zhiwei1; Zhuo, Haixing1; Yu, Kaifeng1; Zhang, Hanzhi1; Lu, HY (reprint author), Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China. [email protected] | |
| 发表期刊 | CATENA
 |
| ISSN | 0341-8162 |
| 2017-07-01 | |
| 卷号 | 154页码:21-32 |
| 关键词 | Loess Grain Size Magnetic Susceptibility Geochronology Paleoclimate Aridification |
| DOI | 10.1016/j.catena.2017.02.020 |
| 产权排序 | [Zeng, Lin; Lu, Huayu; Yi, Shuangwen; Xu, Zhiwei; Zhuo, Haixing; Yu, Kaifeng; Zhang, Hanzhi] Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China; [Stevens, Thomas] Uppsala Univ, Dept Earth Sci, Uppsala, Sweden; [Zeng, Lin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China |
| 作者部门 | 中科院烟台海岸带研究所知识产出 |
| 英文摘要 | Loess deposits are regarded as good indicators of the inception and development of arid and semi-arid climate in central Asia and northern China during the late Cenozoic. In northeastern China extensive loess deposits are found surrounding the Horqin and Otindag sand fields, and they have great potential for reconstructing the long-term aridification history of the region. However, these loess deposits are currently poorly understood. Here, we present a high-resolution magnetic susceptibility (MS) and grain-size record spanning the last 1.0 Ma from a 36.6-m-thick loess-paleosol sequence at Niuyangzigou site (NYZG) in NE China. The grain-size record reveals a long-term drying trend in NE China since ca. 1.0 Ma, punctuated by two significant abrupt drying events at similar to 0.65 Ma and similar to 0.3 Ma. These results demonstrate a process of stepwise intensification of drying in NE China over the past 1 Ma, and lend support to the hypothesis that global ice volume/temperature changes were the major driver of the long-term aridification of Asian dust source areas. However, unlike the widely studied loess deposits on the central Chinese Loess Plateau (CLP), the MS record in paleosol units Sl, S2 and S4 from the NYZG site do not show evidence of enhanced monsoon precipitation resulting from decreased global ice volume and the prolonged episodes of interglaciation after the Mid-Pleistocene Transition evident in the ice volume record. We hypothesize that this may be due to differences in the climatic sensitivity of the MS of Chinese loess deposits on a regional scale, rather than to in regional differences in monsoon intensity. (C) 2017 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China(41690111 ; Program of Global Change and Response of China(2016YEA0600503) ; 41371203) |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | NORTHERN CHINA ; ASIAN DUST ; TAKLIMAKAN DESERT ; EAST-ASIA ; CLIMATIC IMPLICATIONS ; RESOLUTION OSL ; EARLY MIOCENE ; ICE SHEETS ; TIME-SCALE ; MONSOON |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| WOS记录号 | WOS:000400040300003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/22094 |
| 专题 | 中国科学院烟台海岸带研究所知识产出 |
| 通讯作者 | Lu, HY (reprint author), Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China. [email protected] |
| 作者单位 | 1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China 2.Uppsala Univ, Dept Earth Sci, Uppsala, Sweden 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Lin,Lu, Huayu,Yi, Shuangwen,et al. Long-term Pleistocene aridification and possible linkage to high-latitude forcing: New evidence from grain size and magnetic susceptibility proxies from loess-paleosol record in northeastern China[J]. CATENA,2017,154:21-32. |
| APA | Zeng, Lin.,Lu, Huayu.,Yi, Shuangwen.,Stevens, Thomas.,Xu, Zhiwei.,...&Lu, HY .(2017).Long-term Pleistocene aridification and possible linkage to high-latitude forcing: New evidence from grain size and magnetic susceptibility proxies from loess-paleosol record in northeastern China.CATENA,154,21-32. |
| MLA | Zeng, Lin,et al."Long-term Pleistocene aridification and possible linkage to high-latitude forcing: New evidence from grain size and magnetic susceptibility proxies from loess-paleosol record in northeastern China".CATENA 154(2017):21-32. |
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