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Permineralization process promotes preservation of Holocene macrofossil charcoal in soils

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierUniversité Laval [Québec] [ULaval]
dc.contributor.authorDE LAFONTAINE, Guillaume
hal.structure.identifierUniversité Laval [Québec] [ULaval]
dc.contributor.authorCOUILLARD, Pierre-Luc
hal.structure.identifierUniversité Laval [Québec] [ULaval]
dc.contributor.authorPAYETTE, Serge
dc.date.issued2011
dc.identifier.issn0267-8179
dc.description.abstractEnAbstract The use of macrofossil soil charcoal as a palaeoecological tool to reconstruct past vegetation, climate or fire history has gained much interest in recent years. Yet little is known about taphonomy of charcoal in soils. Here we assessed the putative loss of palaeoecological information due to charcoal fragmentation after burial. We found no significant loss of charcoal mass with time. Instead, we found a significant positive relationship between the mass of charcoal particles and their age. Permineralization of charcoal particles older than ca. 5200 a explained the increased charcoal mass with time in mineral soils. The permineralization process increased the density of charcoal particles (resulting in a twofold particles mass increase) and thus offers a protection against subsequent degradation. Our results suggest high stability of palaeoecological information from charcoal macrofossils buried in mineral soils at least over the Holocene timescale.
dc.language.isoen
dc.publisherWiley
dc.subjectMACROFOSSIL
dc.subjectMACRO-FOSSILE
dc.subjectPROCESSUS DE PERMINERALISATION
dc.subject.en14C AMS DATING
dc.subject.enCHARCOAL ANALYSIS
dc.subject.enPERMINERALIZATION
dc.subject.enTAPHONOMY
dc.title.enPermineralization process promotes preservation of Holocene macrofossil charcoal in soils
dc.typeArticle de revue
dc.identifier.doi10.1002/jqs.1529
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalJournal of Quaternary Science
bordeaux.page571-575
bordeaux.volume26
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-02652284
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02652284v1
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