New parameters for the characterization of diagenetic alterations and heat-induced changes of fossil bone mineral using Fourier transform infrared spectrometry |
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| Authors: | M. Lebon,I. Reiche,J.-J. Bahain,C. Chadefaux,A.-M. Moigne,F. Frö hlich,F. Sé mah,H.P. Schwarcz,C. Falguè res |
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| Affiliation: | 1. UMR 7194 CNRS – Département de Préhistoire du Muséum national d’Histoire naturelle (MNHN), 1 rue René Panhard, 75013 Paris, France;2. UMR 171 CNRS – Centre de Recherche et de Restauration des Musées de France (C2RMF), Palais du Louvre, 14 quai François Mitterrand, 75001 Paris, France;3. School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada L8S 4K1 |
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| Abstract: | Diagenetic alteration may limit the potential use of the biogenic composition of fossil bone as a reliable source of information for dietary, environmental and climatic reconstructions. One of the key parameters used to determine the state of preservation of fossil remains is their crystallinity. This can be evaluated by means of infrared spectroscopy, measuring the “splitting factor” (IRSF). However, the crystallinity may fail to describe the extent of chemical and mineralogical changes occurring during fossilization, and cannot be used alone as a reliable indicator of biogenic signal preservation. |
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| Keywords: | Hydroxyapatite Bone Crystallinity IRSF Acid phosphate content ν1PO4 band PIXE/PIGE FTIR |
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