Mediterranean Sea Surface Radiocarbon Reservoir Age Changes Since the Last Glacial Maximum
Mediterranean Sea Surface Radiocarbon Reservoir Age Changes Since the Last Glacial Maximum
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DOI：
10.1126/science.1063649
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发表时间：
2001-11
期刊：
影响因子：
56.9
通讯作者：
G. Siani;M. Paterne;E. Michel;R. Sulpizio;A. Sbrana;M. Arnold;G. Haddad
中科院分区：
文献类型：
--
作者：
G. Siani;M. Paterne;E. Michel;R. Sulpizio;A. Sbrana;M. Arnold;G. Haddad
海洋表面水库年龄必须知道建立一个共同的年代框架海洋，大陆和冰冻圈古代理，是至关重要的了解海洋-大陆的气候关系和海洋的古通风。同时沉积在地中海海洋和陆地区域的浮游有孔虫和火山灰的放射性碳年代测定表明，在过去18，000年的碳-14年中，大部分时期的储层年龄与现代储层年龄（1400年）相似。然而，水库年龄增加了2倍，在最后一次冰消期开始。这是由于北大西洋温盐环流的变化，在大量的冰放电事件海因里希1。
Sea surface reservoir ages must be known to establish a common chronological framework for marine, continental, and cryospheric paleoproxies, and are crucial for understanding ocean-continent climatic relationships and the paleoventilation of the ocean. Radiocarbon dates of planktonic foraminifera and tephra contemporaneously deposited over Mediterranean marine and terrestrial regions reveal that the reservoir ages were similar to the modern one (∼400 years) during most of the past 18,000 carbon-14 years. However, reservoir ages increased by a factor of 2 at the beginning of the last deglaciation. This is attributed to changes of the North Atlantic thermohaline circulation during the massive ice discharge event Heinrich 1.