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Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings

2021Journal article Open Access
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dc.contributor.authorConnolly, Rory
dc.contributor.authorJambrina-Enríquez, Margarita
dc.contributor.authorHerrera-Herrera, Antonio V.
dc.contributor.authorMallol, Carolina
dc.date.accessioned2021-05-10T12:25:09Z
dc.date.available2021-05-10T12:25:09Z
dc.date.issued2021
dc.description.abstractThis paper reports on a series of heating experiments that focus on n-alkanes extracted from leaf, bark, and xylem tissues of the Celtis australis plant. These lipid biomarkers were analysed for their compound-specific hydrogen isotopic composition (δ2Hwax) under limited oxygen conditions at 150, 250, 350, and 450 °C. Our results reveal isotopic variations in wax lipids of different plant organs during short-term low-temperature combustion. We conclude that, in the absence of a detailed characterisation of the depositional environment in advance of sampling, δ2Hwax values in archaeological or otherwise highly anthropogenic environments should be interpreted cautiously. In addition, we observed that variation in δ2Hwax of leaves is minimal at temperatures ≤ 350 °C, highlighting the potential for δ2Hwax in thermally altered combustion substrates to yield palaeoclimate information, which could allow researchers to investigate links between archaeological and climatic records at a high spatial and temporal resolution.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/molecules26071830pt_PT
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10400.1/15467
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationPALEOCHAR: Insights into the Neanderthals and their demise from the study of microscopic and molecular charred matter in Middle Palaeolithic sediments
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectn-alkanespt_PT
dc.subjectThermal alteration; combustionpt_PT
dc.subjectCompound-specific isotope analysispt_PT
dc.subjectPalaeoclimatept_PT
dc.subjectHydrogen isotopespt_PT
dc.subjectArchaeologypt_PT
dc.titleInvestigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settingspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitlePALEOCHAR: Insights into the Neanderthals and their demise from the study of microscopic and molecular charred matter in Middle Palaeolithic sediments
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/648871/EU
oaire.citation.issue7pt_PT
oaire.citation.startPage1830pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume26pt_PT
oaire.fundingStreamH2020
person.familyNamemallol
person.givenNamecarolina
person.identifier.orcid0000-0001-5143-4253
person.identifier.ridH-4652-2015
person.identifier.scopus-author-id22938280200
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9d9cdc02-b720-497e-87c9-4007f42aa372
relation.isAuthorOfPublication.latestForDiscovery9d9cdc02-b720-497e-87c9-4007f42aa372
relation.isProjectOfPublication05acac54-5002-4d62-ae62-11d2e327e987
relation.isProjectOfPublication.latestForDiscovery05acac54-5002-4d62-ae62-11d2e327e987

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