Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: indications from multichannel seismic reflection data. (Short Research Paper 084)
Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: indications from multichannel seismic reflection data. (Short Research Paper 084)
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自末次盛冰期以来，西南极洲松岛湾冰退缩的差异：来自多道地震反射数据的指示。
DOI：
10.3133/ofr20071047srp084
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发表时间：
2007
期刊：
影响因子：
2.9
通讯作者：
P. Schlüter
中科院分区：
文献类型：
--
作者：
G. Uenzelmann‐Neben;K. Gohl;R. Larter;P. Schlüter
了解松岛湾(PIB)的冰川历史对于完善未来的模型是至关重要的
西南极冰盖(WAIS)的稳定性。来自内PIB的新的多道地震反射数据
根据先前发表的自上一次冰川盛期以来该地区退缩历史的重建进行了解释。在冰川消融期间，PIB的西部和东部存在冰盖行为的差异。虽然我们只能在西部PIB中识别出一层薄薄的沉积矿床，但东部PIB显示了沉积层≤400msTWT。这被解释为冰消退差异的结果：PIB西部的冰快速消退伴随着基面的快速融化导致了大型融水流的产生，而PIB东部的较慢的冰消退很可能是由于较小的排水盆地导致融水产量减少的结果。
An understanding of the glacial history of Pine Island Bay (PIB) is essential for refining models of the future
stability of the West Antarctic Ice Sheet (WAIS). New multichannel seismic reflection data from inner PIB are
interpreted in context of previously published reconstructions for the retreat history in this area since the Last Glacial Maximum. Differences in the behavior of the ice sheet during deglaciation are shown to exist for the western and eastern parts of PIB. While we can identify only a thin veneer of sedimentary deposits in western PIB, eastern PIB shows sedimentary layers ≤ 400 msTWT. This is interpreted as a result of differences in ice retreat: a fast ice retreat in western PIB accompanied by rapid basal melting led to production of large meltwater streams, a slower ice retreat in eastern PIB is most probably the result of smaller drainage basins resulting in less meltwater production.