AMS 14C Study of Transient Events and of the Ventilation Rate of the Pacific Intermediate Water During the Last Deglaciation
AMS 14C Study of Transient Events and of the Ventilation Rate of the Pacific Intermediate Water During the Last Deglaciation
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DOI：
10.1017/s003382220001208x
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发表时间：
1989
期刊：
影响因子：
8.3
通讯作者：
J. Duplessy;M. Arnold;E. Bard;A. Juillet‐Leclerc;N. Kallel;L. Labeyrie
中科院分区：
文献类型：
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作者：
J. Duplessy;M. Arnold;E. Bard;A. Juillet‐Leclerc;N. Kallel;L. Labeyrie
利用加速器质谱仪（AMS）对大西洋和太平洋深海沉积物岩心中的浮游有孔虫和底栖有孔虫单种样品进行了14 C分析。这些测量表明，首次在北大西洋描述的新仙女木冷事件也同时存在于北太平洋。通过对两个太平洋柱状样中同一沉积层的浮游有孔虫和底栖有孔虫的~（14）C年龄的比较，发现在末次冰期，太平洋的通气时间大于今天，而在冰消期，则明显小于今天。
14C analysis of monospecific samples of planktonic and benthic foraminifera were performed in deep-sea sediment cores from the Atlantic and Pacific Oceans by Accelerator Mass Spectrometry (AMS). These measurements demonstrate that the Younger Dryas cold event, first described in the north Atlantic, is also present at the same time in the north Pacific Ocean. The comparison of the 14C ages of planktonic and benthic foraminifera from the same sediment level in two Pacific cores shows that the ventilation time of the Pacific Ocean was greater than today during the last ice age, but significantly less than today during the deglaciation.