| 高原泥炭记录揭示的全新世季风快速变化 |
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| 引用本文： | 鲜锋, 周卫健, 于学峰, 卢雪峰, A J T Jull, Lars G Franzén. 高原泥炭记录揭示的全新世季风快速变化[J]. 海洋地质与第四纪地质, 2006, 26(1): 41-45. |
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| 作者姓名： | 鲜锋 周卫健 于学峰 卢雪峰 A J T Jull Lars G Franzén |
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| 作者单位： | 1 中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室, 西安 710075;;; 2 中国科学院 研究生院, 北京 100039;;; 3 NSF-AMS Facility, University of Arizona, Arizona, AZ85721, USA;;; 4 Department of Earth Sciences, Göteborg University, P. O. Box 460 SE-405 30 Göteborg, Sweden |
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| 基金项目： | 国家自然科学基金(40531003,40121303)，国家重点基础研究发展规划项目(NBRPC2004CB720200)，黄土与第四纪地质国家重点实验室基金(SKLLQG0322) |
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| 摘 要： | 利用青藏高原东北缘的泥炭沉积记录,重建了该地区全新世冬、夏季风快速波动历史,清晰地识别出9次可与北大西洋浮冰碎屑事件及低纬海面降温事件相对比的气候干冷事件。总有机碳含量频谱分析揭示的1 428、512、255、217 a气候准周期,表明中纬度地区百年至千年尺度气候韵律的存在,全新世气候快速变化具有全球性。
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| 关 键 词： | 泥炭记录 季风 浮冰碎屑事件 百年至千年尺度 青藏高原 |
| 文章编号： | 0256-1492(2006)01-0041-05 |
| 收稿时间： | 2005-06-27 |
| 修稿时间： | 2005-06-27 |
EVIDENCE FOR ABRUPT CHANGES OF THE ASIAN MONSOON DURING THE HOLOCENE:FROM THE PEAT RECORDS OF TIBETAN PLATEAU |
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| XIAN Feng, ZHOU Wei-jian, YU Xue-feng, LU Xue-feng, A J T Jull, Lars G Franzén. EVIDENCE FOR ABRUPT CHANGES OF THE ASIAN MONSOON DURING THE HOLOCENE: FROM THE PEAT RECORDS OF TIBETAN PLATEAU[J]. Marine Geology & Quaternary Geology, 2006, 26(1): 41-45. |
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| Authors: | XIAN Feng ZHOU Wei-jian YU Xue-feng LU Xue-feng A J T Jull Lars G Franzén |
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| Affiliation: | 1 Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;;; 2 Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;;; 3 NSF-AMS Facility, University of Arizona, Arizona AZ 85721, USA;;; 4 Department of Earth Sciences, Göteborg University, P. O. Box 460 SE-405 30 Göteborg, Sweden |
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| Abstract: | Based on the proxies of peat such as TOC,grey scale and ash content,we reconstruct the evolution history of the Asian monsoon during the Holocene.Nine cold and dry events which can be correlated to both ice rafting events recorded in high latitude North Atlantic Ocean sediment cores and cooling events in the low latitude SST are recognized.Spectral analysis of the TOC data indicates that there exists series of periodicities of 1.428 ka,0.512 ka,0.255 ka and 0.217 ka.This further confirms the existence of centennial-millennial scale climatic rhythm in mid-latitude areas,reflecting the global significance of the rapid changes of climate during the Holocene. |
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| Keywords: | peat Asian monsoon ice rafting events centennial-millennial scale Tibetan Plateau |
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