Chronology of the last recession of the Greenland Ice Sheet
Chronology of the last recession of the Greenland Ice Sheet
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DOI：
10.1002/jqs.670
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发表时间：
2002-03-01
影响因子：
2.3
通讯作者：
Björck, S
中科院分区：
文献类型：
--
作者：
Bennike, O;Björck, S
本文提出了格陵兰岛、大陆架和埃尔斯米尔岛东部（加拿大）无冰区的一个新的冰消年表。该年表基于格陵兰岛所有已发表的放射性碳年代的新汇编，包括来自格陵兰岛南部，东北部和西北部的重要新材料。虽然每个日期只提供了当地冰川消退的最小年龄，但有些日期来自指示冰近端冰川海洋条件的物种，因此可能与实际的冰衰退有关。除了贝壳枣外，还包括海藻枣、湖泊沉积物枣、泥炭枣、陆生植物枣和浮木枣。只有在近海和遥远的南方才发现了可靠的晚冰期沉积物。其他先前关于格陵兰岛陆上部分晚冰期沉积物（年龄大于11.5卡尔·凯尔BP）的报告需要得到证实。格陵兰岛和埃尔斯米尔岛之间的格陵兰岛和纳雷斯海峡的大部分无冰地区直到全新世早期才消失。版权所有（C）2002约翰威利父子有限公司
A new deglaciation chronology for the ice-free parts of Greenland, the continental shelf and eastern Ellesmere Island (Canada) is proposed. The chronology is based on a new compilation of all published radiocarbon dates from Greenland, and includes crucial new material from southern, northeastern and northwestern Greenland. Although each date provides only a minimum age for the local deglaciation, some of the dates come from species that indicate ice-proximal glaciomarine conditions, and thus may be connected with the actual ice recession. In addition to shell dates, dates from marine algae, lake sediments, peat, terrestrial plants and driftwood also are included. Only offshore and in the far south have secure late-glacial sediments been found. Other previous reports of late-glacial sediments (older than 11.5 cal. kyr BP) from onshore parts of Greenland need to be confirmed. Most of the present ice-free parts of Greenland and Nares Strait between Greenland and Ellesmere Island were not deglaciated until the early Holocene. Copyright (C) 2002 John Wiley Sons, Ltd.