Heinrich event imprints in the Okinawa Trough: evidence from oxygen isotope and planktonic foraminifera
Heinrich event imprints in the Okinawa Trough: evidence from oxygen isotope and planktonic foraminifera
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海因里希事件在冲绳海槽的印记：来自氧同位素和浮游有孔虫的证据
DOI：
10.1016/s0031-0182(01)00332-7
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发表时间：
2001-12
期刊：
影响因子：
--
通讯作者：
Michael A. et al
中科院分区：
文献类型：
--
作者：
Tiegang Li;Zhenxia Liu;Michael A. et al
对取自冲绳海槽中部DGKS 9603活塞柱孔（28°08.869′N，127°16.238′E，水深1100 m）的浮游有孔虫、氧同位素和现代模拟技术记录的海表温度进行了研究。在末次冰期，共发现了4次冷事件，并与45 ka以来的Heinrich事件（HE）H2-5进行了对比。DGKS 9603孔在末次冰消期约16 cal ka BP开始受黑潮影响。该暖流分别在2.8-5.3、11.4和15.5 calka BP左右发生了三次减弱。在这三个波动中，最古老的一个与HE 1同步，可能是对北大西洋强冷却的响应。发生在距今约11.4 cal的波动对应于年龄误差条内的新仙女木。我们的观测提供了新的证据，证明格陵兰岛和北大西洋北方记录的HEs具有全球气候影响。东亚季风强度的变化可能是造成冲绳海槽古海洋变化的主要机制。
Planktonic foraminiferal faunas, oxygen isotope and modern analog technique sea surface temperature records were obtained in piston core DGKS9603 (28°08.869′N, 127°16.238′E, water depth 1100 m) collected from the middle Okinawa Trough. During the last glaciation, four cold events were identified and correlate Heinrich events (HE) H2–5 of the last 45 ka. During the last deglaciation, core DGKS9603 has begun to be influenced by the Kuroshio since about 16 cal ka BP. Three weakenings of this warm current occurred at about 2.8–5.3, 11.4 and 15.5 cal ka BP respectively. Among the three fluctuations, the oldest one is synchronous with HE1 and could be a response to the strong cooling observed in the North Atlantic Ocean. The fluctuation occurring at about 11.4 cal ka ago corresponds to the Younger Dryas within the age error bars. Our observations provide new evidence that the HEs documented from Greenland and the northern North Atlantic had a global climatic impact. Changes in the intensity of the East Asian monsoon could be the main mechanism responsible for the paleoceanographic variations observed in the Okinawa Trough.
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DOI：
10.1007/bf02047433
发表时间：
1971-03
期刊：
Journal of the International Association for Mathematical Geology
影响因子：
--
作者：
J. E. Klovan;J. Imbrie
通讯作者：
J. E. Klovan;J. Imbrie
影响因子：
1.9
作者：
H. Ujiié;Y. Ujiié
通讯作者：
H. Ujiié;Y. Ujiié
影响因子：
--
作者：
D. Andreasen;A. Ravelo
通讯作者：
D. Andreasen;A. Ravelo
影响因子：
64.8
作者：
BOND, G;BROECKER, W;BONANI, G
通讯作者：
BONANI, G
DOI：
10.4116/jaqua.37.211
发表时间：
1998-07
期刊：
The Quaternary Research (daiyonki-kenkyu)
影响因子：
--
作者：
Luejiang Wang;T. Oba
通讯作者：
Luejiang Wang;T. Oba