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Verbesserte Zeitskalen aus Knochendatierungen: Isotopenuntersuchungen nach Reservoiralter und Diät

Bone Dating

Accurate chronologies are needed to interpret regional differences in monumentality and variations in the chronologies of microregions of the Neolithic funnel beaker culture that created monumentality. Bones can yield genetic information, which may be used to reconstruct past societies, and radiocarbon dates to provide chronologies. Yet, some bones date older than associated plant material, indicating a reservoir age due to eating fish or shellfish. Unfortunately, this reservoir age is highly variable making bone ages uncertain. Fish and shell fish differ from terrestrial food sources in 14C, but also in 13C and 15N, which may be used to provide dietary information to estimate a reservoir age, and obtain a more reliable age. Measurements of 14C in animal bones (herbivore and aquatic) and macro fossils associated with human skeletons will directly yield the reservoir ages of the bones used in the aDNA study “Kinship, descent and phenotype”. This will lead to more reliable chronologies in support of the interpretation of genetic lineages and their implications for the social and cultural structures of Neolithic communities, as well as to a better comparison of contemporaneous social and cultural development in different regions. Systematic differences in isotopic composition combined with directly measured reservoir ages will indicate differences in diet, which may be related to geographical location, sex, age or social status.