Читать книгу Biogeography in the Sub-Arctic - Группа авторов - Страница 65

A lot of data has been acquired that throw light on the chronology of the deglaciation of the ice‐free land parts of Greenland and a chronology for the last recession of the Inland Ice was proposed by Bennike and Björck et al. (2002). Their chronology was mainly based on radiocarbon dated shells from raised marine deposits. In addition to shell dates, the ages of algae, basal peat, basal gyttja, remains of land plants and drift wood were used. Most of the ice‐free parts of Greenland were deglaciated in the Early Holocene, between 11.5 and 8 ka BP, but in the far south some small areas became ice free during the late glacial period. During the past years, a number of studies have used surface exposure dating, which has improved our understanding of the patterns of ice retreat (e.g. Kelley et al. 2015; Sinclair et al. 2016), but the chronology suggested by Bennike and Björck et al. (2002) is still valid.

Another surprising result of surface exposure dating is that Greenland was apparently nearly ice free for extended periods during the Quaternary (Schaefer et al. 2016).