Is there evidence for a 4.2 kaBP event in the northern North Atlantic region?
| Autor: | Jostein Bakke, Raymond Bradley |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010506 paleontology
Global and Planetary Change Series (stratigraphy) 010504 meteorology & atmospheric sciences Matematikk og naturvitenskap: 400::Geofag: 450 [VDP] Stratigraphy Event (relativity) Climate change / Klimaendringer Mathematics and natural scienses: 400::Geosciences: 450 [VDP] Paleontology 01 natural sciences 13. Climate action Physical geography Glacial period Neoglaciation Geology Holocene 0105 earth and related environmental sciences |
| Zdroj: | Climate of the Past Climate of the Past (1814-9324) (Copernicus GmbH), 2019, Vol. 15, N. 5, P. 1665-1676 |
| ISSN: | 1814-9332 |
| Popis: | We review paleoceanographic and paleoclimatic records from the northern North Atlantic to assess the nature of climatic conditions at 4.2 ka BP, which has been identified as a time of exceptional climatic anomalies in many parts of the world. The northern North Atlantic region experienced relatively warm conditions from 6 to 8 ka BP, followed by a general decline in temperatures after ∼5 ka BP, which led to the onset of neoglaciation. Over the last 5000 years, a series of multi-decadal- to century-scale fluctuations occurred, superimposed on an overall decline in temperature. Although a few records do show a glacial advance around 4.2 ka BP, because they are not widespread we interpret them as local events – simply one glacial advance of many that occurred in response to the overall climatic deterioration that characterized the late Holocene. |
| Databáze: | OpenAIRE |
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