Tests et analyses (microscopiques et spectroscopiques) du comportement des produits consolidant sur l'os Archéologique, et application sur le matériel osseux des gisements plio-pléistocènes de Camp dels Ninots, Sierra d'Atapuerca, et de Barranc de la Boella (Péninsule Ibérique)

Identificador:  TDX:2624

Handle: https://hdl.handle.net/20.500.11797/TDX2624

Autors:  Roubach, Souhila

Resum:
This work falls within the framework of conservation and restoration of bone remains and is concretely about consolidation treatments. The main objective is to understand consolidant product behavior to establish selection criteria for the treatment of paleontological and archaeological remains. This was possible through the study of some parameters such as penetration, long-term behavior and reversibility of consolidants on archaeological bones. The study of these parameters was carried out by tests on a selection of consolidants and archaeological bone samples. The consolidants were selected on what has been reported in the literature and the results of a survey conducted for this thesis; and they are: Paraloid B72 and B82, Mowilith 60 and DMC2, Mowital B60 HH, Butvar B76 and B98. The bone samples meanwhile are small, some have been subjected to destruction, and they come from the archaeological sites of Atapuerca and Barranc de la Boella (Iberian Peninsula). The characterization and evaluation of the results were performed by microscopic (binocular microscope, ESEM) and spectroscopic (Raman, infrared) analysis. The results showed that acrylic resins such as Paraloid B72 and B82 and some vinyl (Mowilith 60) presented some penetration, stability and reversibility, unlike polyvinyl butyral (Mowital B60 HH, Butvar B76 and B98). For their part, analytical techniques have shown their effectiveness. Note that, on the parameters studied also influence the characteristics of the bones as well as the methods and conditions of application. According to the results obtained from the tests on bone samples, the consolidants and methods most effective were selected for consolidation treatment and reversibility tests on a number of fossils (fossils in need of interventions) of Plio- Pleistocene of Camp dels Ninots, Gran Dolina, and Barranc de la Boella (Iberian Peninsula).