Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/15467 |
Resumo: | This 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. |
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spelling |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settingsn-alkanesThermal alteration; combustionCompound-specific isotope analysisPalaeoclimateHydrogen isotopesArchaeologyThis 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.MDPISapientiaConnolly, RoryJambrina-Enríquez, MargaritaHerrera-Herrera, Antonio V.Mallol, Carolina2021-05-10T12:25:09Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/15467eng1420-304910.3390/molecules26071830info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:27:53Zoai:sapientia.ualg.pt:10400.1/15467Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:06:17.480528Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
title |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
spellingShingle |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings Connolly, Rory n-alkanes Thermal alteration; combustion Compound-specific isotope analysis Palaeoclimate Hydrogen isotopes Archaeology |
title_short |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
title_full |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
title_fullStr |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
title_full_unstemmed |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
title_sort |
Investigating hydrogen isotope variation during heating of n-Alkanes under limited oxygen conditions: implications for palaeoclimate reconstruction in archaeological settings |
author |
Connolly, Rory |
author_facet |
Connolly, Rory Jambrina-Enríquez, Margarita Herrera-Herrera, Antonio V. Mallol, Carolina |
author_role |
author |
author2 |
Jambrina-Enríquez, Margarita Herrera-Herrera, Antonio V. Mallol, Carolina |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Connolly, Rory Jambrina-Enríquez, Margarita Herrera-Herrera, Antonio V. Mallol, Carolina |
dc.subject.por.fl_str_mv |
n-alkanes Thermal alteration; combustion Compound-specific isotope analysis Palaeoclimate Hydrogen isotopes Archaeology |
topic |
n-alkanes Thermal alteration; combustion Compound-specific isotope analysis Palaeoclimate Hydrogen isotopes Archaeology |
description |
This 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05-10T12:25:09Z 2021 2021-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/15467 |
url |
http://hdl.handle.net/10400.1/15467 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1420-3049 10.3390/molecules26071830 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133303703339008 |