Concordance of collagen-based radiocarbon and aspartic-acid racemization ages.

  title={Concordance of collagen-based radiocarbon and aspartic-acid racemization ages.},
  author={Jeffrey L. Bada and Roy A. Schroeder and Reiner Protsch and Rainer Berger},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={71 3},
  • J. Bada, R. A. Schroeder, R. Berger
  • Published 1 March 1974
  • Environmental Science
  • Proceedings of the National Academy of Sciences of the United States of America
By determining the extent of racemization of aspartic acid in a well-dated bone, it is possible to calculate the in situ first-order rate constant for the interconversion of the L and D enantiomers of aspartic acid. Collagen-based radiocarbon-dated bones are shown to be suitable samples for use in "calibrating" the racemization reaction. Once the aspartic-acid racemization reaction has been "calibrated" for a site, the reaction can be used to date other bones from the deposit. Ages deduced by… 

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Geol . Mijnbouw 46 , 79 - 95
  • Proc . Nat . Acad . Sci . USA
  • 1967