Comparison of Milankovitch periods between continental loess and deep sea records over the last 2.5 Ma
文献类型：期刊论文
| 作者 | Liu, TS; Ding, ZL; Rutter, N |
| 刊名 | QUATERNARY SCIENCE REVIEWS
 |
| 出版日期 | 1999 |
| 卷号 | 18期号:10-11页码:1205-1212 |
| ISSN号 | 0277-3791 |
| 文献子类 | Article |
| 英文摘要 | A high-resolution East Asian winter monsoon proxy record reconstructed from the Baoji loess section in China shows two major shifts in climate modes over the past 2.5 Ma, one occurring at about 1.7-1.6 Ma BP and the other at about 0.8-0.5 Ma BP. The 1.7-1.6 Ma shift is characterized by a rather abrupt transition of winter monsoon variability from various periodicities to dominant 41-ka cycles, and accompanied by a substantial increase in intensity of winter monsoon winds as manifested by an increase in average loess grain size. The 0.8-0.5 Ma event shows a relatively gradual transition from constant 41-ka cycles to predominant 100-ka climatic oscillations with a significant increase in amplitude. The 0.8-0.5 Ma shift matches that registered in deep-sea delta(18)O records, whereas the 1.7-1.6 Ma shift is absent in global ice volume changes. This comparison suggests that at about 1.6 Ma BP, the ice sheets in the Northern Hemisphere may have reached a critical size, sufficient to modulate changes in the global climate system. The discrepancy of climate cyclicity between loess and deep-sea records over the 2.5-1.6 Ma interval suggests that the older Matuyama climate evolution cannot be understood simply by a regular 41 ka cycle model on a global scale. More long proxy records derived from continental deposits are needed. (C) 1999 Elsevier Science Ltd. All rights reserved. |
| WOS关键词 | NORTHERN HEMISPHERE CLIMATE ; CHINESE LOESS ; NUMERICAL EXPERIMENTS ; MONSOON VARIATIONS ; PLATEAU UPLIFT ; SOUTHERN ASIA ; AMERICAN WEST ; ICE AGES ; STRATIGRAPHY ; CYCLES |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000081970900005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75608]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Rutter, N |
| 作者单位 | 1.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada 2.Chinese Acad Sci, Inst Geol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, TS,Ding, ZL,Rutter, N. Comparison of Milankovitch periods between continental loess and deep sea records over the last 2.5 Ma[J]. QUATERNARY SCIENCE REVIEWS,1999,18(10-11):1205-1212. |
| APA | Liu, TS,Ding, ZL,&Rutter, N.(1999).Comparison of Milankovitch periods between continental loess and deep sea records over the last 2.5 Ma.QUATERNARY SCIENCE REVIEWS,18(10-11),1205-1212. |
| MLA | Liu, TS,et al."Comparison of Milankovitch periods between continental loess and deep sea records over the last 2.5 Ma".QUATERNARY SCIENCE REVIEWS 18.10-11(1999):1205-1212. |
入库方式： OAI收割
来源：地质与地球物理研究所
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