The last deglacial history of Lützow‐Holm Bay, East Antarctica
The last deglacial history of Lützow‐Holm Bay, East Antarctica
复制标题
南极洲东部吕佐夫-霍尔姆湾的最后一次冰消历史
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
H. Matsuzaki
中科院分区：
文献类型：
--
作者：
M. Yamane;Y. Yokoyama;H. Miura;H. Maemoku;Shogo Iwasaki;H. Matsuzaki
由于缺乏可测定的材料、放射性碳储层年龄和恶劣的环境，人们对南极冰盖过去的波动知之甚少。为了了解末次盛冰期以来南极对全球海平面上升的贡献，冰退缩时间的直接证据非常重要。在这里，我们报告了限制东南极洲l<s:1>佐霍尔姆湾最后一次消冰时间的首次暴露年龄。我们的数据表明，该地区冰盖的最终退缩发生在全新世早期，冰盖厚度减少了至少350 m。这发生在北半球冰川大消退之后。版权所有©2011 John Wiley & Sons， Ltd
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 350 m. This occurred after the major Northern Hemisphere deglaciation. Copyright © 2011 John Wiley & Sons, Ltd.