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Origin and Migration of the Alpine Iceman Wolfgang M ÜLLER, Henry F RICKE et al. in Science 302, p.862, 2003 presented by Ingmar Unkel IUP-Literaturseminar.

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Presentation on theme: "Origin and Migration of the Alpine Iceman Wolfgang M ÜLLER, Henry F RICKE et al. in Science 302, p.862, 2003 presented by Ingmar Unkel IUP-Literaturseminar."— Presentation transcript:

1 Origin and Migration of the Alpine Iceman Wolfgang M ÜLLER, Henry F RICKE et al. in Science 302, p.862, 2003 presented by Ingmar Unkel IUP-Literaturseminar SS 2004

2 Content The local geological environment The examined material Stable isotopes  O, C) Radiogenic isotopes (Sr, Pb) Conclusions

3 The local geological environment

4 Objective Determination of Oetzi‘s birthplace habitat range of activity Isotopic tracing based on the transfer of the isotopic signature of soils and waters into biominerals (via nutrition)

5 The examined material teeth (3x enamel, 1x dentine) bone (femur – cortical and trabecular) intestinal content clothing and equipment (goat fur, lime bast, larch wood)

6 The examined material teeth canine, first and second premolar enamel, dentine age 3 to 5 years

7 The examined material bone femur cortical, age 20 to 30 years trabecular, age 32 to 40 years

8 The examined material intestine content last meal shortly before assassination

9 stable isotopes Provide information about altitude, latitude or position relative to a watershed (O) or paleodiet (C)

10 cool Atlantic influence, long transport  18 O ~ -14-16‰ warm Mediterranean influence, short transport  18 O ~ -11-13‰ lowering of  18 O to the west  18 O – stable isotopes

11

12 radiogenic isotopes Refining how far south Oetzi lived, based on comparison to soil leachates of the 4 main lithologies using: 87 Sr/ 86 Sr and 206 Pb/ 204 Pb

13 radiogenic isotopes

14

15 discussion  18 O -10,6 ‰ first premolar -11,0 ‰ canine -11,7 to -11,4 ‰ bone -11 to -13 ‰ southern waters 87 Sr/ 86 Sr0,7203 to 0,7215 high ratios for enamel 0,7175 to 0,7184 bone Sr-Pb isotopic composition is consistent with compositions of gneisses and phyllites 206 Pb/ 204 Pb18,6 to 18,3 bone

16 discussion

17 postmortem alteration by meltwater not observed in  18 O incipient in 87 Sr/ 86 Sr 12 white micas out of intestinal content 40 Ar/ 39 Ar age distribution points at gneiss lithology as living area Most probable place of living during adulthood: NW-SW of Merano

18 Thank you !


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