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Thermo-microstratigraphy of shells reveals invisible fire use and possible cooking in the archaeological record

2022Journal article Open Access
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dc.contributor.authorSimões, Carlos
dc.contributor.authorAldeias, Vera
dc.date.accessioned2023-01-11T14:45:31Z
dc.date.available2023-01-11T14:45:31Z
dc.date.issued2022
dc.description.abstractThe archaeological visibility of hearths related to shellfish cooking methods is limited, particularly in pre-ceramic shell midden contexts. Important evidence for use of fire is the thermal alteration of components, namely the identification of burnt shells. Mollusk shells that mineralize as aragonite are particularly indicative of burning due to the conversion of aragonite to calcite through recrystallization at known temperature thresholds. However, roasting temperatures needed to open bivalves, do not necessarily cause thermal alterations in the cooked shell. This complicates the significance of shell mineralogy by itself to recognize cooking, and discerning pre-depositional from in situ heating. To distinguish between cooking and burning, we combine micromorphological analyses with microscopic Fourier transformed infrared spectroscopy to investigate mineralogical thermo-alterations alongside microstratigraphic formation studies. Experimentally heated specimens of Cerastoderma edule and Scrobicularia plana are used to identify the temperature thresholds of biogenic calcium carbonate phase alteration at the micro-scale. These results are then used to interpret mineral alterations in deposits from two Mesolithic shell midden contexts from Portugal. Micro-stratigraphically controlled mineralogy proved to be particularly useful to distinguish between pre-depositional heating from in situ heating, configuring a novel methodology for recognition of traces of cooking shellfish versus traces of fire used for other purposes. Mapping the mineral phase conversion at a micro stratigraphic scale also allows us to identify instances of in situ fire events that were invisible macroscopically. This combined microstratigraphic and mineralogical methodology considerably increases our capacity of deciphering intricate shell midden stratigraphy and occupational events.pt_PT
dc.description.sponsorshipSEArch 101003409; BES-2012-053695; HAR2011-29907-C0300; HAR2014-51830-P
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/feart.2022.869487pt_PT
dc.identifier.eissn2296-6463
dc.identifier.urihttp://hdl.handle.net/10400.1/18800
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Media SApt_PT
dc.relationFire among Anatomically Modern Humans and Neandertals as revealed from Archaeological Microstratigraphic Evidence (FLAME)
dc.relationNeandertals and early modern humans Pyrotechnology - FLAME (traces of Fire: Learning from Archaeological Microstratigraphic Evidence)
dc.relationThe last hunter-gatherers of Muge (Portugal): the origins of social complexity
dc.relationBACK TO SADO: A CASE STUDY BETWEEN LAST HUNTER-GATHERERS AND FIRST AGRO-PASTORALIST SOCIETIES IN SOUTHERN PORTUGAL
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPrehistoric cookingpt_PT
dc.subjectShell middenpt_PT
dc.subjectMesolithicpt_PT
dc.subjectMicrostratigraphypt_PT
dc.subjectMineralogypt_PT
dc.subjectAragonitept_PT
dc.subjectCalcitept_PT
dc.subjectPalaeotemperaturept_PT
dc.titleThermo-microstratigraphy of shells reveals invisible fire use and possible cooking in the archaeological recordpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFire among Anatomically Modern Humans and Neandertals as revealed from Archaeological Microstratigraphic Evidence (FLAME)
oaire.awardTitleNeandertals and early modern humans Pyrotechnology - FLAME (traces of Fire: Learning from Archaeological Microstratigraphic Evidence)
oaire.awardTitleThe last hunter-gatherers of Muge (Portugal): the origins of social complexity
oaire.awardTitleBACK TO SADO: A CASE STUDY BETWEEN LAST HUNTER-GATHERERS AND FIRST AGRO-PASTORALIST SOCIETIES IN SOUTHERN PORTUGAL
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FHAR-ARQ%2F29606%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01157%2F2015%2FCP1308%2FCT0002/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FHAH%2F64185%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FHIS-ARQ%2F112156%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FHIS-ARQ%2F121592%2F2010/PT
oaire.citation.titleFrontiers in Earth Sciencept_PT
oaire.citation.volume10pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamInvestigador FCT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
person.familyNameLucas Antunes Simões
person.familyNamealdeias
person.givenNameCarlos Duarte
person.givenNamevera
person.identifier.ciencia-idBA1F-23CC-DE79
person.identifier.ciencia-id9A14-DE8D-BABF
person.identifier.orcid0000-0002-4570-1308
person.identifier.orcid0000-0002-7680-182X
person.identifier.scopus-author-id55052739100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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