Tree-ring δ13C of archeological charcoals as indicator of past climatic seasonality. A case study from the Neolithic settlements of Lake Chalain (Jura, France)
| Autor: | Franck Baton, Alexandre Delorme, Thanh Thuy Nguyen Tu, Sylvie Derenne, Alexa Dufraisse, Frédéric Delarue |
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| Přispěvatelé: | Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols (METIS), Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC), Archéozoologie, archéobotanique : sociétés, pratiques et environnements (AASPE), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), ANR-10-JCJC-2001,DENDRAC,Développement d'outils dendrométriques appliqués à l'anthracologie : étude des relations homme-ressources-environnement(2010), Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010506 paleontology
010504 meteorology & atmospheric sciences [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory growth-ring width 01 natural sciences [SHS]Humanities and Social Sciences earlywood Human settlement Paleoclimatology Dendrochronology medicine Precipitation Charcoal 0105 earth and related environmental sciences Earth-Surface Processes seasonality 13 C 15. Life on land Seasonality medicine.disease Archaeology 13. Climate action domestic firewood Isotope geochemistry visual_art Period (geology) visual_art.visual_art_medium Environmental science latewood |
| Zdroj: | Quaternary International Quaternary International, Elsevier, 2017, ⟨10.1016/j.quaint.2017.03.015⟩ Quaternary International, 2017, 457, pp.50-59. ⟨10.1016/j.quaint.2017.03.015⟩ |
| ISSN: | 1040-6182 |
| Popis: | International audience; Charcoal fragments from the Neolithic settlements of Lake Chalain (Jura Mountains, France) 17 were characterized by dendro-anthracology (charcoal-pith distance, tree-ring width, 18 earlywood/latewood proportion) and ring-scale isotope geochemistry (13 C) to assess the 19 relevance of this combined approach for paleoclimate reconstructions. Two differing climatic 20 periods were investigated: (i) a climatic deterioration period characterized by cool and moist 21 conditions and (ii) a climatic improvement period characterized by slightly less precipitation 22 and warmer temperature. Latewood proportion in charcoal tree-rings was similar for the two 23 studied climatic periods. However, the charcoal tree-rings exhibited width and 13 C-content 24 significantly different between the two studied periods, in agreement with previously inferred 25 climatic difference. Monitoring ring-to-ring 13 C variation within each charcoal fragment 26 revealed no noticeable climatic trend, for none of the studied periods. However, calculation of 27 the difference in 13 C-content between earlywood and latewood of a given tree-ring suggested 28 2 that the cool and moist climatic period also corresponded to higher seasonal contrast than 29 the dryer climatic period. Although this exploratory study needs further confirmation, it opens 30 promising developments for paleoclimatic reconstructions based on the stable carbon 31 isotope composition of archaeological charcoals: the potential for recording subtle 32 paleoclimatic variations and seasonal contrasts. |
| Databáze: | OpenAIRE |
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