Can we Use Calcined Bones for 14 C Dating the Paleolithic?
Antoine Zazzo
(1)
,
Matthieu Lebon
(2)
,
Laurent Chiotti
(2)
,
Clothilde Comby
(3)
,
Emmanuelle Delque-Količ
(3)
,
Roland Nespoulet
(2)
,
Ina Reiche
(4)
Antoine Zazzo
- Fonction : Auteur
- PersonId : 178947
- IdHAL : antoine-zazzo
- ORCID : 0000-0001-7608-2207
- IdRef : 066936004
Matthieu Lebon
- Fonction : Auteur
- PersonId : 1197899
- IdHAL : matthieu-lebon
- ORCID : 0000-0003-4970-1230
- IdRef : 230371329
Laurent Chiotti
- Fonction : Auteur
- PersonId : 745200
- IdHAL : laurent-chiotti
- IdRef : 094519234
Clothilde Comby
- Fonction : Auteur
- PersonId : 750693
- IdHAL : clothilde-comby-zerbino
Emmanuelle Delque-Količ
- Fonction : Auteur
- PersonId : 950346
- IdHAL : emmanuelle-delque-kolic
- ORCID : 0000-0001-9758-2964
Roland Nespoulet
- Fonction : Auteur
- PersonId : 759691
- ORCID : 0000-0003-0222-2611
- IdRef : 057305773
Ina Reiche
- Fonction : Auteur
- PersonId : 740982
- IdHAL : ina-reiche
- ORCID : 0000-0002-9897-6620
- IdRef : 09017173X
Résumé
This work aims to test the reliability of calcined bones for radiocarbon dating of the Paleolithic. Fifty-five calcined bone samples coming from Aurignacian and Gravettian layers at Abri Pataud (Dordogne, France) were selected based on their macroscopic features. For each sample, the heating state was estimated on the basis of bone crystallinity (splitting factor [SF] using FTIR) and δ13C value. Twenty-seven bone samples (3 unburnt and 24 calcined) from 5 different levels were prepared for 14C dating. The majority (15/24) of the calcined samples had to undergo a sulfix treatment prior to graphitization, probably due to the presence of cyanamide ion in these samples. The comparison between our results and recently published dates on bone collagen for the same levels shows that unburned bone apatite is systematically too young, while a third of the calcined bones fall within or very near the range of expected age. No clear correlation was found between 14C age offset and δ13C value or SF. Most of the sulfixed samples (14/16) yielded ages that were too young, while almost all of the non-sulfixed samples (8/9) gave ages similar or <0.2 pMC from the expected minimum age. Although preliminary, these results suggest that sulfix should be avoided if possible and that clean CO2 gas from well-calcined Paleolithic bones can provide reliable 14C ages.
Domaines
Archéologie et PréhistoireFormat du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Résumé |
en
This work aims to test the reliability of calcined bones for radiocarbon dating of the Paleolithic. Fifty-five calcined bone samples coming from Aurignacian and Gravettian layers at Abri Pataud (Dordogne, France) were selected based on their macroscopic features. For each sample, the heating state was estimated on the basis of bone crystallinity (splitting factor [SF] using FTIR) and δ13C value. Twenty-seven bone samples (3 unburnt and 24 calcined) from 5 different levels were prepared for 14C dating. The majority (15/24) of the calcined samples had to undergo a sulfix treatment prior to graphitization, probably due to the presence of cyanamide ion in these samples. The comparison between our results and recently published dates on bone collagen for the same levels shows that unburned bone apatite is systematically too young, while a third of the calcined bones fall within or very near the range of expected age. No clear correlation was found between 14C age offset and δ13C value or SF. Most of the sulfixed samples (14/16) yielded ages that were too young, while almost all of the non-sulfixed samples (8/9) gave ages similar or <0.2 pMC from the expected minimum age. Although preliminary, these results suggest that sulfix should be avoided if possible and that clean CO2 gas from well-calcined Paleolithic bones can provide reliable 14C ages.
|
Titre |
en
Can we Use Calcined Bones for 14 C Dating the Paleolithic?
|
Auteur(s) |
Antoine Zazzo
1
, Matthieu Lebon
2
, Laurent Chiotti
2
, Clothilde Comby
3
, Emmanuelle Delque-Količ
3
, Roland Nespoulet
2
, Ina Reiche
4
1
AASPE -
Archéozoologie, archéobotanique : sociétés, pratiques et environnements
( 118105 )
- Muséum national d'Histoire naturelle - Case postale 56 - 55 rue Buffon - 75005 Paris
- France
2
HNHP -
Histoire naturelle de l'Homme préhistorique
( 121947 )
- Institut de Paléontologie Humaine - 1, rue René Panhard - 75013 Paris
- France
3
LMC14 - UMS 2572 -
Laboratoire de mesure du carbone 14
( 1881 )
- Bâtiment 450 - Porte 4E CEA Saclay 91191 GIF SUR YVETTE CEDEX
- France
4
LAMS -
Laboratoire d'Archéologie Moléculaire et Structurale
( 218275 )
- UPMC 4 Place Jussieu 75252 Paris Cedex 5
- France
|
Nom de la revue |
|
Volume |
55
|
Numéro |
3
|
Page/Identifiant |
1409-1421
|
Langue du document |
Anglais
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Date de publication |
2013
|
Domaine(s) |
|
DOI | 10.1017/S0033822200048347 |
Origine :
Fichiers produits par l'(les) auteur(s)
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