State of conservation and intervention methodology of a selection of bronzes from the archaeological site Casas del Turuñuelo
Keywords:
arqueología, bronce, cloruro de cobre, restauración, estabilidad, LQS láserAbstract
The aim of this work is presenting the conservation of a set of unique bronzes found at the Tartessian archaeological site of Casas del Turuñuelo, in Guareña (Badajoz). The selected pieces are a thymiaterion, a grill, a wine strainer and a weighing scale with several plates, excavated in the lobby and banquet room known as S-1. They have been chosen due to the heterogeneity of their state of conservation; While some pieces maintain their metallic core, protected with dense layers of stable cuprite and tenorite, others have completely lost it due to the severe corrosion, which has transformed the core into powdery and unstable copper chloride. These objects come to us in a delicate and complex state that requires us to
adapt the conservation protocols and cleaning techniques to their fragility, be they manual, abrasive or laser techniques. The result has been the recovery of the most stable patina in the bronzes that still conserved it, its stabilization for their future conservation and the restitution of its identity.
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References
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