1. Detection of diagenetic alterations by Spectroscopic Analysis on Archaeological Bones from the Necropolis of Poseidonia (Paestum): A case study
- Author
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Antonio Proto, Alexandra R. Albunia, Davide Alfano, and Oriana Motta
- Subjects
Archeology ,Materials Science (miscellaneous) ,Analytical chemistry ,Mineralogy ,Infrared spectroscopy ,Conservation ,Apatite ,Diagenesis ,chemistry.chemical_compound ,Spectroscopy ,Calcite ,Archaeological bones ,NMR ,X-ray diffraction ,Carbon-13 NMR ,Archaeology ,chemistry ,Chemistry (miscellaneous) ,visual_art ,X-ray crystallography ,visual_art.visual_art_medium ,Carbonate ,General Economics, Econometrics and Finance ,Geology - Abstract
Understanding the chemical and physical alteration in archaeological bones, occurred after burial, is very interesting for researchers. In this paper, we present a study on the diagenetic alteration of human archaeological bony tissues from Paestum (South Italy), by combining complementary spectroscopic techniques, such as solid-state nuclear magnetic resonance (NMR), infrared spectroscopy (IR), and X-ray diffraction. In particular, 13 C nuclear magnetic resonance–cross polarization-magic angle spinning ( 13 C NMR CP-MAS) spectroscopy allows to identify and discriminate the adsorbed calcite, that is a diagenetic contaminant, from the structural one of apatite and 1 H NMR-MAS spectroscopy shows how the degradation of organic phase of collagen is related to the time. The NMR data are combined with crystalline index, measured by X-ray diffraction, and with the splitting factor obtained by infrared spectroscopy. Moreover, the evaluation of the relative content of biogenic structural carbonate and of diagenetic fluorine is reported.
- Published
- 2009
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