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格陵兰岛七百万年的冰川作用。

Seven million years of glaciation in greenland.

作者信息

Larsen H C, Saunders A D, Clift P D, Beget J, Wei W, Spezzaferri S

出版信息

Science. 1994 May 13;264(5161):952-5. doi: 10.1126/science.264.5161.952.

DOI:10.1126/science.264.5161.952
PMID:17830083
Abstract

Glacial till, glaciomarine diamictites, and ice-rafted detritus found in marine cores collected off the shore of southeast Greenland record multiple Late Cenozoic glaciations beginning in the Late Miocene. Distinct rock assemblages and seismic stratigraphic control correlate the diamictites with glaciation of the southeast Greenland margin. Glaciers advanced to the sea during several intervals in the Pliocene and Pleistocene. North Atlantic glaciation may have nucleated in southern Greenland rather than further north because of the high mountains and the high levels of precipitation in this region.

摘要

在格陵兰岛东南部海岸外采集的海洋岩芯中发现的冰碛物、冰川海洋杂砾岩和冰筏碎屑记录了始于晚中新世的多次晚新生代冰川作用。不同的岩石组合和地震地层控制将杂砾岩与格陵兰岛东南部边缘的冰川作用联系起来。在更新世和上新世的几个时期,冰川向海洋推进。由于该地区的高山和高降水量,北大西洋冰川作用可能起源于格陵兰岛南部而非更靠北的地区。

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