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The Influence of Contaminating (Fossil) Carbonate and the Variations of δ13C in Mortar Dating

Published online by Cambridge University Press:  18 July 2016

Mark Van Strydonck ,
Michel Dupas ,
Michelle Dauchot-Dehon ,
Christiane Pachiaudi  and
Joelle Marechal
Mark Van Strydonck
Affiliation:
Koninklijk Instituut voor Het Kunstpatrimonium, Jubelpark 1, 1040 Brussels, Belgium
Michel Dupas
Affiliation:
Koninklijk Instituut voor Het Kunstpatrimonium, Jubelpark 1, 1040 Brussels, Belgium
Michelle Dauchot-Dehon
Affiliation:
Koninklijk Instituut voor Het Kunstpatrimonium, Jubelpark 1, 1040 Brussels, Belgium
Christiane Pachiaudi
Affiliation:
Université Claude Bernard, Lyon, France
Joelle Marechal
Affiliation:
Université Claude Bernard, Lyon, France
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Abstract

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The influence of the aggregate in mortar dating is examined. Sample activity as well as isotopic fractionation approach the expected values at lower yields of the preparation reaction of the counting gas. Good results are obtained at low fossil carbonate concentration. δ13C cannot give information about this concentration but preliminary visual and chemical analysis of the mortar makes prediction of sample validity possible.

Type
VII. Applications in Archaeology
Information
Radiocarbon , Volume 28 , Issue 2A , 1986 , pp. 702 - 710
Copyright
Copyright © The American Journal of Science 

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