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U-series and radiocarbon analyses of human and faunal remains from Wajak, Indonesia

Journal Article


Abstract


  • Laser ablation U-series dating results on human and faunal bone fragments from Wajak, Indonesia, indicate a minimum age of between 37.4 and 28.5 ka (thousands of years ago) for the whole assemblage. These are significantly older than previously published radiocarbon estimates on bone carbonate, which suggested a Holocene age for a human bone fragment and a late Pleistocene age for a faunal bone. The analysis of the organic components in the faunal material show severe degradation and a positive δ13C ratio indicate a high degree of secondary carbonatisation. This may explain why the thermal release method used for the original age assessments yielded such young ages. While the older U-series ages are not in contradiction with the morphology of the Wajak human fossils or Javanese biostratigraphy, they will require a reassessment of the evolutionary relationships of modern human remains in Southeast Asia and Oceania. It can be expected that systematic direct dating of human fossils from this area will lead to further revisions of our understanding of modern human evolution.

UOW Authors


  •   Aubert , Maxime (external author)
  •   Grün, Rainer (external author)
  •   Kinsley, Leslie (external author)
  •   Stringer, Chris B. (external author)
  •   de Vos, John (external author)
  •   Storm, Paul (external author)
  •   Bartsiokas, Antonis (external author)
  •   Wood, Rachel (external author)

Publication Date


  • 2013

Citation


  • Storm, P., Wood, R., Stringer, C., Bartsiokas, A., de Vos, J., Aubert, M., Kinsley, L. & Grün, R. (2013). U-series and radiocarbon analyses of human and faunal remains from Wajak, Indonesia. Journal of Human Evolution, 64 (5), 356-365.

Scopus Eid


  • 2-s2.0-84875887904

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/849

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 356

End Page


  • 365

Volume


  • 64

Issue


  • 5

Abstract


  • Laser ablation U-series dating results on human and faunal bone fragments from Wajak, Indonesia, indicate a minimum age of between 37.4 and 28.5 ka (thousands of years ago) for the whole assemblage. These are significantly older than previously published radiocarbon estimates on bone carbonate, which suggested a Holocene age for a human bone fragment and a late Pleistocene age for a faunal bone. The analysis of the organic components in the faunal material show severe degradation and a positive δ13C ratio indicate a high degree of secondary carbonatisation. This may explain why the thermal release method used for the original age assessments yielded such young ages. While the older U-series ages are not in contradiction with the morphology of the Wajak human fossils or Javanese biostratigraphy, they will require a reassessment of the evolutionary relationships of modern human remains in Southeast Asia and Oceania. It can be expected that systematic direct dating of human fossils from this area will lead to further revisions of our understanding of modern human evolution.

UOW Authors


  •   Aubert , Maxime (external author)
  •   Grün, Rainer (external author)
  •   Kinsley, Leslie (external author)
  •   Stringer, Chris B. (external author)
  •   de Vos, John (external author)
  •   Storm, Paul (external author)
  •   Bartsiokas, Antonis (external author)
  •   Wood, Rachel (external author)

Publication Date


  • 2013

Citation


  • Storm, P., Wood, R., Stringer, C., Bartsiokas, A., de Vos, J., Aubert, M., Kinsley, L. & Grün, R. (2013). U-series and radiocarbon analyses of human and faunal remains from Wajak, Indonesia. Journal of Human Evolution, 64 (5), 356-365.

Scopus Eid


  • 2-s2.0-84875887904

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/849

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 356

End Page


  • 365

Volume


  • 64

Issue


  • 5