Heinrich event 4 characterized by terrestrial proxies in southwestern Europe
Heinrich event 4 characterized by terrestrial proxies in southwestern Europe
复制标题
海因里希事件 4 以欧洲西南部的地面代理为特征
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Joan Daura
中科院分区：
文献类型：
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作者：
J. López;H. Blain;M. Bennàsar;M. Sanz;Joan Daura
抽象的。海因里希事件4(H4)在北大西洋被很好地记录为发生在39至40 KA之间的冷却事件。对伊比利亚半岛海岸线周围的深海岩心进行了分析，以确定H4事件的特征，但没有关于该事件的陆地响应的数据。在这里，我们首次使用来自Terrassa Riera dels Canyars的小型脊椎动物组合(包括小型哺乳动物、鳞片动物和两栖动物)来分析H4事件的陆地代用品，Terrassa Riera dels Canyars是一种位于伊比利亚半岛东北部海岸的考古古生物沉积。这一组合表明，H4事件在伊比利亚东北部的特点是比今天更严酷和干燥的陆地条件。我们的结果与该地点的其他替代数据，如花粉、木炭、植硅体、鸟类和大型哺乳动物数据进行了比较，并与一般的H4事件波动以及在伊比利亚半岛的地中海和大西洋地区检测到H4和之前和随后的海因里希事件(H5和H3)的其他地点进行了比较。我们的结论是，陆地代表遵循与伊比利亚边缘深海岩心探测到的气候和环境条件相同的模式。
Abstract. Heinrich event 4 (H4) is well documented in the North Atlantic Ocean as a cooling event that occurred between 39 and 40 Ka. Deep-sea cores around the Iberian Peninsula coastline have been analysed to characterize the H4 event, but there are no data on the terrestrial response to this event. Here we present for the first time an analysis of terrestrial proxies for characterizing the H4 event, using the small-vertebrate assemblage (comprising small mammals, squamates and amphibians) from Terrassa Riera dels Canyars, an archaeo-palaeontological deposit located on the seaboard of the northeastern Iberian Peninsula. This assemblage shows that the H4 event is characterized in northeastern Iberia by harsher and drier terrestrial conditions than today. Our results were compared with other proxies such as pollen, charcoal, phytolith, avifauna and large-mammal data available for this site, as well as with the general H4 event fluctuations and with other sites where H4 and the previous and subsequent Heinrich events (H5 and H3) have been detected in the Mediterranean and Atlantic regions of the Iberian Peninsula. We conclude that the terrestrial proxies follow the same patterns as the climatic and environmental conditions detected by the deep-sea cores at the Iberian margins.
影响因子：
4
作者：
Fletcher, William J.;Goni, Maria Fernanda Sanchez;Tzedakis, P. C.
通讯作者：
Tzedakis, P. C.
影响因子：
2.3
作者：
Fletcher, William J.;Goni, Maria Fernanda Sanchez
通讯作者：
Goni, Maria Fernanda Sanchez