Optical dating of abrupt shifts in the late Pleistocene East Asian monsoon

被引:98
作者
Stevens, Thomas [1 ]
Lu, Huayu [2 ]
Thomas, David S. G. [3 ]
Armitage, Simon J. [4 ]
机构
[1] Kingston Univ, Sch Earth Sci & Geog, Ctr Earth & Environm Sci Res, Kingston upon Thames KT1 2EE, Surrey, England
[2] Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210093, Peoples R China
[3] Univ Oxford, Ctr Environm, Sch Geog, Oxford OX1 3QY, England
[4] Royal Holloway Univ London, Dept Geog, Egham TW20 0EX, Surrey, England
关键词
monsoon; luminescence; radiometric dating; Loess Plateau; China; Pleistocene;
D O I
10.1130/G24524A.1
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Chinese loess is regarded as one of the most detailed and complete terrestrial archives of late Cenozoic climate change. However, high-resolution optically stimulated luminescence (OSL) dates presented here reveal that the suborbital chronological framework of Chinese loess used in many previous climate reconstructions requires reassessment. Chronological uncertainty of as much as 10-15 k.y. for the late Pleistocene is largely a result of the widespread use of nonradiometric dating techniques that fail to account for site-specific depositional conditions associated with loess emplacement and diagenesis. OSL-based age models that account for these processes are used to examine detailed records of past sedimentation, as well as grain size and magnetic susceptibility proxies for late Pleistocene East Asian monsoon variation. Abrupt shifts in monsoon proxies occur over 10(2)-10(3) yr time scales, potentially forced by a variety of factors and influenced by site location and site-specific changes in sedimentation.
引用
收藏
页码:415 / 418
页数:4
相关论文
共 25 条
[1]   Direct correlation of the marine oxygen isotope record with the Chinese Loess Plateau iron oxide and magnetic susceptibility records [J].
Balsam, W ;
Ellwood, B ;
Ji, JF .
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2005, 221 (1-2) :141-152
[2]   INSOLATION VALUES FOR THE CLIMATE OF THE LAST 10000000 YEARS [J].
BERGER, A ;
LOUTRE, MF .
QUATERNARY SCIENCE REVIEWS, 1991, 10 (04) :297-317
[3]   CORRELATIONS BETWEEN CLIMATE RECORDS FROM NORTH-ATLANTIC SEDIMENTS AND GREENLAND ICE [J].
BOND, G ;
BROECKER, W ;
JOHNSEN, S ;
MCMANUS, J ;
LABEYRIE, L ;
JOUZEL, J ;
BONANI, G .
NATURE, 1993, 365 (6442) :143-147
[4]   Late Quaternary intensified monsoon phases control landscape evolution in the northwest Himalaya [J].
Bookhagen, B ;
Thiede, RC ;
Strecker, MR .
GEOLOGY, 2005, 33 (02) :149-152
[5]  
Ding Y., 1994, MONSOONS CHINA
[6]   LAKE EVOLUTION DURING THE PAST 30,000 YEARS IN CHINA, AND ITS IMPLICATIONS FOR ENVIRONMENTAL-CHANGE [J].
FANG, JQ .
QUATERNARY RESEARCH, 1991, 36 (01) :37-60
[7]   Vegetation variations and associated environmental changes during marine isotope stage 3 in the western part of the Chinese Loess Plateau [J].
Feng, Z. -D. ;
Tang, L. Y. ;
Ma, Y. Z. ;
Zhai, Z. X. ;
Wu, H. N. ;
Li, F. ;
Zou, S. B. ;
Yang, Q. L. ;
Wang, W. G. ;
Derbyshire, E. ;
Liu, K. -B. .
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2007, 246 (2-4) :278-291
[8]   Luminescence dating of loessic sediments from the Loess plateau, China [J].
Frechen, M .
GEOLOGISCHE RUNDSCHAU, 1999, 87 (04) :675-684
[9]   Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China [J].
Guo, ZT ;
Ruddiman, WF ;
Hao, QZ ;
Wu, HB ;
Qiao, YS ;
Zhu, RX ;
Peng, SZ ;
Wei, JJ ;
Yuan, BY ;
Liu, TS .
NATURE, 2002, 416 (6877) :159-163
[10]   Rates of dust deposition between 50 ka and 20 ka revealed by OSL dating at Yuanbao on the Chinese Loess Plateau [J].
Lai, ZhongPing ;
Wintle, Ann G. ;
Thomas, David S. G. .
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2007, 248 (3-4) :431-439