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Migration and integration on the Baltic island of Öland in the Iron Age

Wilhelmson, Helene LU and Price, Douglas T. (2017) In Journal of Archaeological Science: Reports 12. p.183-196
Abstract

This study explores a bi-isotopic approach to migration, adding δ18O values to samples with 87Sr/86Sr values for 109 individuals from the Iron Age (500 BCE–1050 CE) on the island of Öland, Sweden. Determining a local baseline for 87Sr/86Sr was complicated due to the wide range of variation in faunal samples so we divided the human values into three groups: local, non-local and undetermined. The addition of δ18O isotopes allowed identifying further non locals than the data from the 87Sr/86Sr alone provided. We found significant migration rates in both the Early period (500 BCE–400 CE) with 30% non-locals and in the Late (400–1050 CE), more than... (More)

This study explores a bi-isotopic approach to migration, adding δ18O values to samples with 87Sr/86Sr values for 109 individuals from the Iron Age (500 BCE–1050 CE) on the island of Öland, Sweden. Determining a local baseline for 87Sr/86Sr was complicated due to the wide range of variation in faunal samples so we divided the human values into three groups: local, non-local and undetermined. The addition of δ18O isotopes allowed identifying further non locals than the data from the 87Sr/86Sr alone provided. We found significant migration rates in both the Early period (500 BCE–400 CE) with 30% non-locals and in the Late (400–1050 CE), more than doubling to 68%. In both periods the non-locals appear to have diverse geographical origins. In order to study integration and migration patterns we use a bioarchaeological approach to these non cremated individuals who come from all types of contexts, i.e. not just burials. This allows discussing the cultural and social integration of non-locals. Integration is apparent in both periods and in the Late period, with a higher proportion of non-locals, there is both integration and diversity. The proportion of female non-locals suggest a mobility in both periods, especially the Late, that is relatively large. Our results of diverse non-local origins, female mobility and integration on Öland throughout the Iron Age add a new perspective, a Scandinavian multi-isotopic bioarchaeological perspective, to current discussions of Viking movement and expansion.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bioarchaeology, Isotopes, Migration, Oxygen, Strontium
in
Journal of Archaeological Science: Reports
volume
12
pages
14 pages
publisher
Elsevier
external identifiers
  • scopus:85012254010
  • wos:000415616300021
ISSN
2352-409X
DOI
10.1016/j.jasrep.2017.01.031
language
English
LU publication?
yes
id
a8e98d56-6fe4-434e-8604-3dfb0399913a
date added to LUP
2017-02-22 12:00:44
date last changed
2018-05-20 04:31:47
@article{a8e98d56-6fe4-434e-8604-3dfb0399913a,
  abstract     = {<p>This study explores a bi-isotopic approach to migration, adding δ<sup>18</sup>O values to samples with <sup>87</sup>Sr/<sup>86</sup>Sr values for 109 individuals from the Iron Age (500 BCE–1050 CE) on the island of Öland, Sweden. Determining a local baseline for <sup>87</sup>Sr/<sup>86</sup>Sr was complicated due to the wide range of variation in faunal samples so we divided the human values into three groups: local, non-local and undetermined. The addition of δ<sup>18</sup>O isotopes allowed identifying further non locals than the data from the <sup>87</sup>Sr/<sup>86</sup>Sr alone provided. We found significant migration rates in both the Early period (500 BCE–400 CE) with 30% non-locals and in the Late (400–1050 CE), more than doubling to 68%. In both periods the non-locals appear to have diverse geographical origins. In order to study integration and migration patterns we use a bioarchaeological approach to these non cremated individuals who come from all types of contexts, i.e. not just burials. This allows discussing the cultural and social integration of non-locals. Integration is apparent in both periods and in the Late period, with a higher proportion of non-locals, there is both integration and diversity. The proportion of female non-locals suggest a mobility in both periods, especially the Late, that is relatively large. Our results of diverse non-local origins, female mobility and integration on Öland throughout the Iron Age add a new perspective, a Scandinavian multi-isotopic bioarchaeological perspective, to current discussions of Viking movement and expansion.</p>},
  author       = {Wilhelmson, Helene and Price, Douglas T.},
  issn         = {2352-409X},
  keyword      = {Bioarchaeology,Isotopes,Migration,Oxygen,Strontium},
  language     = {eng},
  month        = {04},
  pages        = {183--196},
  publisher    = {Elsevier},
  series       = {Journal of Archaeological Science: Reports},
  title        = {Migration and integration on the Baltic island of Öland in the Iron Age},
  url          = {http://dx.doi.org/10.1016/j.jasrep.2017.01.031},
  volume       = {12},
  year         = {2017},
}