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| Titel |
Migration and mobility in the early medieval settlement in Thunau/Kamp using 87Sr/86Sr Isotope ratio measurements by MC-ICPMS |
| VerfasserIn |
Sophie Gangl, Johanna Irrgeher, Maria Teschler-Nicola, Thomas Prohaska |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250078225
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| Zusammenfassung |
| The use of Sr isotope ratios has been applied systematically for clarifying questions about
migration patterns of humans and animals. In consequence of geologically induced
differences in the isotopic composition, 87Sr/86Sr ratios are characteristic for a specific
region. Humans and animals take up strontium primarily via drinking water and diet. Since
strontium has similar chemical properties to calcium, it is mainly stored in teeth and bones.
Tooth enamel is formed in the early childhood and is not subject to significant changes in
later life. Therefore, the enclosed strontium has the same isotopic composition as the
environment in which the individual was living during his early years, provided that the food
came from the close proximity. Issue of this study was the early medieval (9th to 10th century
AD) settlement in Thunau/Kamp. In order to assess the biogenic Sr isotopic signature of the
Thunau settlement area, environmental samples including soil, rocks, water and plants
were taken at the excavation site and in the immediate vicinity. They represent
the local strontium signal to which the isotopic compositions of historic human
tooth samples (enamel and dentine) were compared. The 87Sr/86Sr ratios in tooth
enamel and dentine give insight about residential characteristics of the settlement of
Thunau/Kamp in comparison to the fortified hilltop settlement located in close
proximity. |
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