Late Quaternary coccolith records in the South China Sea and East Asian monsoon dynamics
Late Quaternary coccolith records in the South China Sea and East Asian monsoon dynamics
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南海晚第四纪颗石岩记录与东亚季风动力学
DOI：
10.1016/j.gloplacha.2013.08.016
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发表时间：
2013-12
影响因子：
3.9
通讯作者：
Huang, Enqing
中科院分区：
文献类型：
--
作者：
Liu, Chuanlian;Beaufort, Luc;Tian, Jun;Huang, Enqing
Coccolithophorid assemblages over the past 260 ka were analyzed in three sediment cores (MD05-2904, MD05-2897 and MD05-2901) from the northern, southern and western South China Sea (SCS), respectively. Past changes in the nutricline depth and primary productivity (PP) were reconstructed using the relative abundance of the coccolithophoreFlorisphaera profunda. Our records show that the nutricline in the northern and the southern SCS both shoaled during glacial periods but deepened during interglacial periods. However, the nutricline depth and PP in the western SCS did not reveal any significant changes paced with glacial–interglacial cycles. We suggested that the East Asian Winter monsoon dominates the nutricline and PP variations in the northern and southern SCS. In the western SCS, the winter-monsoon signal in the reconstructed coccolith records might have been muted by the influence of the local summer upwelling. The relative abundance ofF. profundashow significant Milankovitch spectrum peaks at the three sites, and is out of phase with the global common feature at the precessional bands. Through Empirical Orthogonal Function (EOF) analyses onF. profundarecords of the SCS and the Sulu Sea, two significant EOF modes are isolated. EOF-1 reflected glacial-interglacial variations which might be a response to the dynamics of the East Asian Winter monsoon. EOF-2 shows both strong ~ 20 kyr precession and ~ 40 kyr obliquity cycles and probably related to the East Asian Summer monsoon evolution.
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影响因子：
3.6
作者：
Qu, T;Mitsudera, H;Yamagata, T
通讯作者：
Yamagata, T
DOI：
10.1007/bf02973118
发表时间：
1998-05
期刊：
Science in China Series D: Earth Sciences
影响因子：
--
作者：
C. Xinrong;Wang Pin-xian
通讯作者：
C. Xinrong;Wang Pin-xian
影响因子：
4
作者：
An, ZS
通讯作者：
An, ZS
影响因子：
--
作者：
Pinxian Wang
通讯作者：
Pinxian Wang
影响因子：
1.9
作者：
K. Wei;Tien-Nan Yang;Chi‐Yue Huang
通讯作者：
K. Wei;Tien-Nan Yang;Chi‐Yue Huang