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首页> 外文期刊>Journal of quaternary science: JQS >The last deglacial history of Lützow-Holm Bay, East Antarctica
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The last deglacial history of Lützow-Holm Bay, East Antarctica

机译:东南极洲吕茨霍姆湾的最后一次冰消历史

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摘要

Past fluctuations of the Antarctic ice sheet are poorly understood because of a lack of datable materials, radiocarbon reservoir ages and severe environments. Direct evidence of the timing of ice retreat is important in order to understand the Antarctic contribution to global sea-level rise since the Last Glacial Maximum. Here we report the first exposure ages constraining the timing of the last deglaciation from Lützow-Holm Bay, East Antarctica. Our data suggest that the final retreat of the ice sheet in the region occurred rapidly in the early Holocene and the reduction of the ice thickness in the region was at least 350m. This occurred after the major Northern Hemisphere deglaciation.
机译:由于缺乏可获取数据的材料,放射性碳储层的年龄和恶劣的环境,人们对南极冰盖的过去波动了解得很少。为了了解南极洲自上次冰河极盛以来对全球海平面上升的贡献,直接退冰时间的直接证据很重要。在这里,我们报告了南极东部Lützow-Holm湾最后一次冰消时间的首次曝光年龄。我们的数据表明,该区域冰盖的最终退缩在全新世早期迅速发生,并且该区域冰厚度的减小至少为350m。这发生在北半球的主要冰消作用之后。

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