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A large-scale environmental strontium isotope baseline map of Portugal for archaeological and paleoecological provenance studies

2022-06Journal article Restricted access
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dc.contributor.authorJames, Hannah F.
dc.contributor.authorAdams, Shaun
dc.contributor.authorWillmes, Malte
dc.contributor.authorMathison, Kate
dc.contributor.authorUlrichsen, Andrea
dc.contributor.authorWood, Rachel
dc.contributor.authorValera, António Carlos
dc.contributor.authorFrieman, Catherine J.
dc.contributor.authorGrün, Rainer
dc.date.accessioned2023-03-07T10:15:21Z
dc.date.available2023-03-07T10:15:21Z
dc.date.issued2022-06
dc.description.abstractStrontium isotopes (Sr-87/Sr-86) provide valuable information to help reconstruct past mobility. For the analysis of archaeological tooth enamel to provide a direct assessment of mobility, a comparison to the baseline Sr-87/Sr-86 in a region is required. In this study, a large-scale Sr-87/Sr-86 baseline of Portugal is created based on 151 paired plant and soil leachate samples combined with previously published data (20 additional plant and 33 additional soil leachate sites). Spatial patterns of Sr-87/Sr-86 are evident, following Portugal's geology and terrain, with higher Sr-87/Sr-86 in the granite dominated north and further inland. Influences from sea spray are observed along the coastal regions of the country. The bioavailable strontium range for Portugal is 0.70575-0.73487, and paired plant-soil leachate site measurements show a strong positive relationship. Empirical Bayesian Kriging (EBK) alongside mean Sr-87/Sr-86 per geological unit are used to provide predictive surfaces for bioavailable Sr-87/Sr-86. We find that the addition of archaeological site-specific measurements is required in archaeological mobility studies to ensure local-scale Sr-87/Sr-86 variation is captured, illustrated in this study using the Late Middle Neolithic to Early Bronze Age site of Perdigoes. The bioavailable strontium isoscape for Portugal provides a baseline map for future archaeological and palaeoecological studies in this region and contributes to the global efforts to map strontium isotope variability.pt_PT
dc.description.sponsorshipARC Discovery Project DP160100811 Grant agreement number 948913pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jas.2022.105595pt_PT
dc.identifier.eissn1095-9238
dc.identifier.urihttp://hdl.handle.net/10400.1/19198
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectIsoscapept_PT
dc.subjectMobilitypt_PT
dc.subjectArchaeologypt_PT
dc.subjectSoilpt_PT
dc.subjectPlantpt_PT
dc.subjectKrigingpt_PT
dc.titleA large-scale environmental strontium isotope baseline map of Portugal for archaeological and paleoecological provenance studiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage105595pt_PT
oaire.citation.titleJournal of Archaeological Sciencept_PT
oaire.citation.volume142pt_PT
person.familyNameValera
person.givenNameAntónio
person.identifier.ciencia-id8117-9E53-B540
person.identifier.orcid0000-0001-5492-3810
person.identifier.scopus-author-id44261524700
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication58824f61-0881-4548-9b91-77f47d22166a
relation.isAuthorOfPublication.latestForDiscovery58824f61-0881-4548-9b91-77f47d22166a

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