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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
Cited literature [66 references]
https://hal-mines-paristech.archives-ouvertes.fr/hal-00951096
Contributor : Magalie Prudon Connect in order to contact the contributor
Submitted on : Wednesday, May 25, 2016 - 12:15:14 PM
Last modification on : Tuesday, December 7, 2021 - 4:04:15 PM
Long-term archiving on: : Friday, August 26, 2016 - 10:40:33 AM
Contributor : Magalie Prudon Connect in order to contact the contributor
Submitted on : Wednesday, May 25, 2016 - 12:15:14 PM
Last modification on : Tuesday, December 7, 2021 - 4:04:15 PM
Long-term archiving on: : Friday, August 26, 2016 - 10:40:33 AM
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