Last glacial fire regime variability in western France inferred from microcharcoal preserved in core MD04-2845, Bay of Biscay

High resolution multiproxy analysis (microcharcoal, pollen, organic carbon, Neogloboquadrina pachyderma (s) , ice rafted debris) of the deep-sea record MD04-2845 (Bay of Biscay) provides new insights for understanding mechanisms of fire regime variability of the last glacial period in western France...

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Bibliographic Details
Published in:Quaternary Research
Main Authors: DANIAU, Anne-Laure, GOÑI, Maria Fernanda Sánchez, DUPRAT, Josette
Format: Other/Unknown Material
Language:English
Published: Elsevier 2009
Subjects:
Heinrich events
Dansgaard–Oeschger events
France
Biomass burning
Charcoal
Marine sequence
Planète et Univers [physics]/Sciences de la Terre/Climatologie
Dansgaard-Oeschger events
Neogloboquadrina pachyderma
Online Access:https://oskar-bordeaux.fr/handle/20.500.12278/38588
https://doi.org/10.1016/j.yqres.2009.01.007
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Summary:High resolution multiproxy analysis (microcharcoal, pollen, organic carbon, Neogloboquadrina pachyderma (s) , ice rafted debris) of the deep-sea record MD04-2845 (Bay of Biscay) provides new insights for understanding mechanisms of fire regime variability of the last glacial period in western France. Fire regime of western France closely follows Dansgaard–Oeschger climatic variability and presents the same pattern than that of southwestern Iberia, namely low fire regime associated with open vegetation during stadials including Heinrich events, and high fire regime associated with open forest during interstadials. This supports a regional climatic control on fire regime for western Europe through fuel availability for the last glacial period. Additionally, each of Heinrich events 6, 5 and 4 is characterised by three episodes of fire regime, with a high regime bracketed by lower fire regime episodes, related to vegetational succession and complex environmental condition changes.

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