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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Zazzo, Antoine
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Topics
Publications (3/3 displayed)
- 2023Identification and tentative removal of collagen glue in Palaeolithic worked bone objectscitations
- 2019New radiocarbon dates for the early dispersal of Opium poppy (Papaver somniferum L.) in western Europe.
- 2018Identification of degraded bone and tooth splinters from arid environments using palaeoproteomicscitations
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article
Identification and tentative removal of collagen glue in Palaeolithic worked bone objects
Abstract
Collagen glue has been used for nearly two centuries to consolidate bone material, although its<br/>prevalence in museum collections is only now becoming visible. Identifying and removing collagen<br/>glue is crucial before the execution of any geochemical or molecular analyses. Palaeolithic bone<br/>objects from old excavations intended for radiocarbon dating were first analysed using ZooMS<br/>(Zooarchaeology by Mass Spectrometry) to identify the animal species, however peaks characteristic<br/>of both cattle and whale were discovered. Two extraction methods for ZooMS were tested to identify<br/>the authentic animal species of these objects, which revealed that these were originally whale bone<br/>objects that had been consolidated with cattle collagen glue. This is the first time animal collagen glue<br/>has been identified in archaeological remains with ZooMS, illustrating again the incredible versatility<br/>of this technique. Another technique, Fourier Transform Infrared Spectroscopy in Attenuated Total<br/>Reflectance mode (FTIR-ATR), was also tested if it could rapidly identify the presence of collagen<br/>glue in archaeological bone material, which was not the case. Two other cleaning methods were<br/>tested to remove bone glue contamination prior to radiocarbon dating, along with two modified<br/>collagen extraction methods for ZooMS. These methods were applied to bone blank samples<br/>(FmC = 0.0031 ± 0.0002, (n = 219), 47 336 ± 277 yr BP) that were experimentally consolidated with<br/>collagen glue and to the Palaeolithic bone material (ca. 15 000 and 12 000 yr BP). The experimental<br/>bone blanks produced excellent 14C ages, suggesting the cleaning methods were successful, however<br/>the 14C ages for some of the Palaeolithic material remained too young considering their contextual<br/>age, suggesting that the collagen glue contamination had most likely cross-linked to the authentic<br/>collagen molecule. More research is needed in order to gain a deeper understanding of the occurrence<br/>and elimination of cross-linked collagen-based glues in material from museum collections.