Skip to Main content Skip to Navigation
Journal articles

Impact of post-depositional processes on charcoal fragmentation and archaeobotanical implications: Experimental approach combining charcoal analysis and biomechanics

Abstract : Generallyspeaking,charcoalanalysisisbasedonidentifyingandcountingcharcoalfragmentsinordertocalculatetherelativevariationsintaxafrequency.Allpost-depositionalprocessesarelikelytoinducefragmentationoftheanthracologicalmaterial,raisingthequestionoftherepresentativenessoftaxa.Basedonaninnovativeexperimentalapproachcombiningbothcharcoalanalysisandbiomechanics,thispaperexploreshowthemechanicalpropertiesofcharcoalcaninfluencethefragmentationandthequantificationofspeciesinanthracologicalassemblages.Wecarriedoutstandardizedlaboratorycompressiontestson302samplesissuedfrom10taxa,charredatthreedifferenttemperatures,inordertocharacterizethemechanicalpropertiesofcommonspeciesintemperateandMediterraneanEurope.Ourresultshighlightthedifferentialresponsesofthetestedspeciesintermsofresistancetocompressionandfragmentation,twoprocesseswhichdonotappeartobecorrelated.Charcoalisveryresistanttopressure(upto22.5MPa).Ourresultsshowthatsignificantfragmentationdifferencesexistbetweentaxa.Thetotalnumberoffragmentsaftercompressionislargelydependentonthespecies,regardlessofthecharringtemperature.However,thisinterspecificvariabilityismoresignificantforsmallfragments[1e2mm],thanforlargerfragments[2e4mm]and>4mm,withtheexceptionofQuercus,whichdisplaysdifferentialreactionstocompression.Finally,amultifactorialanalysisbringstolighttheimpactofthephysicalandanatomicalcharacteristicsofthedifferentspeciesoncharcoalfragmentation
Complete list of metadata

Cited literature [66 references]  Display  Hide  Download

https://hal-mines-paristech.archives-ouvertes.fr/hal-00951096
Contributor : Magalie Prudon <>
Submitted on : Wednesday, May 25, 2016 - 12:15:14 PM
Last modification on : Saturday, January 9, 2021 - 3:08:40 AM
Long-term archiving on: : Friday, August 26, 2016 - 10:40:33 AM

File

Impact_post-depositional_proce...
Files produced by the author(s)

Identifiers

Citation

Julia Chrzazvez, Isabelle Théry-Parisot, Gilbert Fiorucci, Jean-Frédéric Terralc, Bernard Thibaut. Impact of post-depositional processes on charcoal fragmentation and archaeobotanical implications: Experimental approach combining charcoal analysis and biomechanics. Journal of Archaeological Science, Elsevier, 2014, 44, pp.30-42. ⟨10.1016/j.jas.2014.01.006⟩. ⟨hal-00951096⟩

Share

Metrics

Record views

983

Files downloads

1456