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| 萨拉乌苏河流域高分辨率的沙丘砂常量元素分布指示的全新世寒冷事件 | |
| 引用本文： | 牛东风,李保生,杜恕环,温小浩,邱世藩,欧先交,杨艺.萨拉乌苏河流域高分辨率的沙丘砂常量元素分布指示的全新世寒冷事件[J].地理学报(英文版),2008,18(1):26-36. |
| 作者姓名： | 牛东风 李保生 杜恕环 温小浩 邱世藩 欧先交 杨艺 |
| 作者单位： | [1]School of Geography, South China Normal University, Guangzhou 510631, China [2]State Key Laboratory of Loess and Quatemary Geology, Institute of Earth Environment, CAS, Xi＇an 710061,China [3]Baotou Vocational ＆ Technical College, Baotou 010022, China |
| 基金项目： | National Basic Research Program of China, No.2004CB720206; National Natural Science Foundation of China, No.40772118; No.49971009; Knowledge Innovation Project of CAS, No.KZCX2-SW-118 |
| 摘 要： | The components of the primary elements in the dune sands for the MGS1 subsection of the Milanggouwan section in the Salawusu River valley, compared with those of modern dune sands, show that they were caused by East Asian winter monsoon in the Mu Us desert during Holocene. The examined ages for the 11 layers of dune sands, based on the average sedimentary rate, are： 0 to 960, 1350-2240, 2470 to 3530, 4000 to 4180, 4290 to 4350, 4380 to 4760, 5040 to 5920, 6570 to 8270, 9020 to 9700, 9880 to 10160 and 10580 to 11080 a BP, respectively. The climatic events indicated by these dune sands are consistent with those records in the Huguangyan volcanic lake, Zoige peat bog, Hulu cave and Dunde ice core, particularly with the climatic fluctuations of the North Atlantic since 11 000 a BP. Among them, patterns from B0 to B8 correspond to the peak values of 0MD, 2D, 4D, 6D＋8D＋10D, 12D, 14D, 16D, 18D and 20D respectively. It might be caused by the North Atlantic ice age induced by the heat circulation, which strengthened the polar high pressure and Siberian-Mongolian high pressure and further led to the dominance of the winter monsoon over China＇s desert area. |
| 关 键 词： | 萨拉乌苏河流域 沙丘砂 常量元素 分布指示 全新世 寒冷事件 |
| 收稿时间： | 2007-10-04 |
| 修稿时间： | 2007-11-26 |
Cold events of Holocene indicated by primary elements distribution of the high-resolution sand dunes in the Salawusu River Valley |
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| Dongfeng?Niu,Baosheng?Li,Shuhuan?Du,Xiaohao?Wen,Shifan?Qiu,Xianjiao?Ou,Yi?Yang.Cold events of Holocene indicated by primary elements distribution of the high-resolution sand dunes in the Salawusu River Valley[J].Journal of Geographical Sciences,2008,18(1):26-36. | |
| Authors: | Dongfeng Niu Baosheng Li Shuhuan Du Xiaohao Wen Shifan Qiu Xianjiao Ou Yi Yang |
| Institution: | 1. School of Geography, South China Normal University, Guangzhou 510631, China;Baotou Vocational & Technical College, Baotou 010022, China 2. School of Geography, South China Normal University, Guangzhou 510631, China;State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an 710061, China 3. School of Geography, South China Normal University, Guangzhou 510631, China |
| Abstract: | The components of the primary elements in the dune sands for the MGS1 subsection of the Milanggouwan section in the Salawusu River valley, compared with those of modern dune sands, show that they were caused by East Asian winter monsoon in the Mu Us desert during Holocene. The examined ages for the 11 layers of dune sands, based on the average sedimentary rate, are: 0 to 960, 1350–2240, 2470 to 3530, 4000 to 4180, 4290 to 4350, 4380 to 4760, 5040 to 5920, 6570 to 8270, 9020 to 9700, 9880 to 10160 and 10580 to 11080 a BP, respectively. The climatic events indicated by these dune sands are consistent with those records in the Huguangyan volcanic lake, Zoige peat bog, Hulu cave and Dunde ice core, particularly with the climatic fluctuations of the North Atlantic since 11 000 a BP. Among them, patterns from B0 to B8 correspond to the peak values of 0MD, 2D, 4D, 6D+8D+10D, 12D, 14D, 16D, 18D and 20D respectively. It might be caused by the North Atlantic ice age induced by the heat circulation, which strengthened the polar high pressure and Siberian-Mongolian high pressure and further led to the dominance of the winter monsoon over China’s desert area. Foundation: National Basic Research Program of China, No.2004CB720206; National Natural Science Foundation of China, No.40772118; No.49971009; Knowledge Innovation Project of CAS, No.KZCX2-SW-118 Author: Niu Dongfeng (1978–), M.A. Candidate, specialized in environmental evolvement. |
| Keywords: | Salawusu River Valley Holocene dune sands primary elements cold events |
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