The global character of the time interval known as the Little Ice Age (LIA) is at present relatively well established. The forcing mechanisms behind this cooling interval, however, are still elusive. Investiga-tions in annually-laminated sediments have shown that varved sediments are among the best...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.516.2704 http://geoscience-meeting.scnatweb.ch/sgm2005/sgm05_abstracts/02_andes/02_pdf/ariztegui_talk.pdf |
| Summary: | The global character of the time interval known as the Little Ice Age (LIA) is at present relatively well established. The forcing mechanisms behind this cooling interval, however, are still elusive. Investiga-tions in annually-laminated sediments have shown that varved sediments are among the best climatic archives to tackle these questions. Proglacial Lago FrÃas in northern Patagonia is fed by the Tronador ice cap (3554 m). Previous investi-gations have shown that this glacier has reacted sensitively to climate change during distinct episodes such as the Late Glacial-Holocene transition (Ariz-tegui et al., 1997; Hajdas et al, 2003), and the Me-dieval Warm Epoch and the LIA, with well identified major glacial advances between A.D. 1800-1850 |
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