Repeated aeolian deflation during the Allerød/GI-1a-c in the coversand lowland of NW Belgium
| Autor: | J.A.A. Bos, Philippe Crombé, Frédéric Cruz, Jeroen Verhegge |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010504 meteorology & atmospheric sciences
Pleistocene Sand-belt Forest fires NETHERLANDS Alleröd Western Europe hunter-gatherers medicine.disease_cause DEPOSITS 01 natural sciences Allerød oscillation LOCALITY EVENTS Vegetation dynamics Pollen SETTLEMENTS Cooling events medicine OSCILLATIONS RECORDS 0105 earth and related environmental sciences Earth-Surface Processes History and Archaeology Macrofossil 04 agricultural and veterinary sciences ENVIRONMENTAL-CHANGES Deflation Aeolian deflation Allerod aeolian erosion Late Glacial Earth and Environmental Sciences Paleogeography 040103 agronomy & agriculture Period (geology) 0401 agriculture forestry and fisheries Aeolian processes Moervaart palaeolake Physical geography Geology SEDIMENTS |
| Zdroj: | CATENA |
| ISSN: | 0341-8162 1872-6887 |
| Popis: | The results of multi-disciplinary research carried out on the deposits of the Moerbeke “Driehoek” site, located along the northern bank of the extensive Moervaart palaeolake (NW Belgium), are presented. The multi-proxy study, including sedimentological (organic matter, calcium carbonate and grain-size) and botanical (pollen, macrofossils, NPP) analyses, provided evidence of repeated aeolian deflation during the Allerod. Our results demonstrate, in combination with evidence from other soil archives within the Moervaart area, that the Allerod period in NW Europe was sedimentologically much less stable than hitherto assumed, especially during the GI-1c2 event and middle Allerod. Some of the Allerod deflation events were caused by centennial abrupt climatic oscillations, such as the short but pronounced cold GI-1c2 event, while others were likely the result of intense forest fires or a combination of both. These observations call for a revision of the existing Lateglacial litho- and chronostratigraphic schemes for the sand-belt of northern Europe. |
| Databáze: | OpenAIRE |
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