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| Titel |
2H Stable Isotope Analysis of Human Tooth Dentine: A Pilot Study |
| VerfasserIn |
Anastasia Holobinko, Wolfram Meier-Augenstein  , Helen Kemp, Tracy Prowse, Henry Schwarcz |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250045535
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| Zusammenfassung |
| Stable isotope analysis of biogenic tissues such as tooth enamel, bone, and hair has
become a well-recognized and commonly implemented technique for determining
provenance of human remains in bioarchaeological contexts and, more recently,
in the forensic identification of unidentified human remains (Lee-Thorp, 2008;
Meier-Augenstein and Fraser, 2008). Particularly, 18O and 2H stable isotope signatures are
well established proxies as environmental indicators of climate (temperature) and source
water and are therefore considered as indicators of geographic life trajectories of
animals and humans (Hobson et al., 2004; Schwarcz and Walker, 2006). While studies
focusing on the isotopic analysis of mammalian tooth dentine have emerged in the
literature, few if any studies have systematically investigated the multi-isotopic
signatures in human tooth dentine (Stuart-Williams and Schwarcz 1997, beaver;
Balasse et al., 2001, cattle; Kirsanow et al., 2008, sheep; Dupras and Tocheri 2007,
humans). Since isotopic make-up of tooth enamel from late-erupting permanent teeth
are a source of information on geographic origins, and the isotopic signatures in
continuously forming tissues (i.e., hair) yield more recent geolocational data, we
hypothesize that potentially valuable information can be obtained from the stable isotopic
composition of human crown dentine related to geographic provenance and dietary
intake.
This pilot study determined isotopic abundance of 15N, 13C, 18O, and 2H in human tooth
dentine using continuous-flow isotope ratio mass spectrometry (IRMS). Our preliminary
findings suggest that multi-isotope signatures but in particular the information locked
into 2H isotopic composition of tooth dentine may improve the chances of victim
identification.
References:
Balasse, M., Smith, A.B., Ambrose, S. and Leigh, S.R. (2001) J Archaeol Sci, 28,
235-245
Dupras, T.L. and Tocheri, M.W. (2007) Amer J Phys Anthropol, 134, 63-74
Kirsanow, K. Makarewicz, C. and Tuross, N. (2008) J Archaeol Sci, 35, 3159-3167
Lee-Thorp, J.A. (2008) Archaeometry, 50, 925–950
Meier-Augenstein, W. and Fraser, I. (2008) Science & Justice, 48, 153–159
Hobson, K.A., Bowen, G.J., Wassenaar, L.I., Ferrand, Y. and Lormee, H. (2004)
Oecologia, 141, 477–488
Schwarcz, H.P. and Walker, P.L. (2006) Amer J Phys Anthropol, 129, 160
Stuart-Williams, H.L. and Schwarcz, H.P. (1997) Geochim Cosmochim Acta, 61,
2539-2550 |
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