sábado, 2 de noviembre de 2013

UNED - Investigación sobre análisis de pigmentos de pinturas prehistóricas

25/10/13. Publicación de un estudio sobre análisis de pigmentos de pinturas prehistóricas del refugio de Minateda (Albacete) en la revista "Journal of Archaeological Science".
Martí Mas Cornellá.



Referencia: Martí Mas, Alberto Jorge, Beatriz Gavilán, Mónica Solís, Enrique Parra, Pedro-Pablo Pérez, Minateda rock shelters (Albacete) and post-palaeolithic art of the Mediterranean Basin in Spain: pigments, surfaces and patinas, Journal of Archaeological Science, Volume 40, Issue 12, December 2013, Pages 4635-4647, ISSN 0305-4403, http://dx.doi.org/10.1016/j.jas.2013.07.019.

Abstract:
The inorganic and organic fractions of two microsamples of prehistoric paint from the same site, the Minateda rock shelters, are analysed here for the first time. The two samples correspond to two rock shelters of different styles (Levantine and schematic) – Abrigo Grande de Minateda (The Great Rock Shelter of Minateda) and Abrigo del Barranco de la Mortaja (Del Barranco de la Mortaja Rock Shelter). Since its discovery, historiographical tradition has emphasised the Abrigo Grande de Minateda, with its magnificence and complexity, as emblematic of the origin and evolution of rock art in the Mediterranean Basin of the Iberian Peninsula (a UNESCO World Heritage Site). Four complementary techniques –Microphotography, Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDX), Raman Spectroscopy and Gas Chromatography–Mass Spectroscopy (GC–MS)– were combined to identify and characterise the physicochemical properties of the paint and of the surface. We present an interpretation of the results that leads us to define complex taphonomic alterations beyond the usual distinction of layers that include the surface, pigments and patinas.

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