GEOCHEMICAL CHARACTERIZATION OF ARCHAEOLOGICAL LIME MORTARS: PROVENANCE INPUTS* |
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| Authors: | L. A. ORTEGA M. C. ZULUAGA A. ALONSO‐OLAZABAL M. INSAUSTI A. IBÁÑEZ |
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| Affiliation: | 1. Departamento de Mineralogía y Petrología, Facultad de Ciencia y Tecnología, Universidad País Vasco‐Euskal Herriko Unibertsitatea, Aptdo 644, 48080 Bilbao, Spain;2. Departamento de Química Inorgánica, Facultad de Ciencia y Tecnología, Universidad País Vasco‐Euskal Herriko Unibertsitatea, Aptdo 644, 48080 Bilbao, Spain;3. Departamento de Aqueología Histórica, Sociedad de Ciencias Aranzadi, Elkano Bidea, 31, 20014 Donostia‐San Sebastián;4. Departamento de Didáctica de las Ciencias Sociales, Universidad del País Vasco‐Euskal Herriko Unibertsitatea, EU de Magisterio de Bizkaia, Ramón y Cajal, 72, 48014 Bilbao, Spain |
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| Abstract: | Chemical and mineralogical analyses were carried out on historical lime mortars from the parish church of Santa María La Real (Guipúzcoa). The study included various periods ranging from Roman to modern times and allowed the identification of various types of raw materials. In order to obtain pure binder, free of carbonate aggregates and charcoal particles, an innovative binder separation method was implemented. The chemical composition of the binder allows discrimination of different provenance areas for the raw materials, although those areas do not correlate with specific historical periods. In addition, the influence of burial processes on the primeval chemical features has been assessed and reveals that modern mortars display greater chemical modification than the Roman mortars. |
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| Keywords: | BURIAL GEOCHEMISTRY ICP‐MS LIME MORTAR PETROGRAPHIC PROVENANCE ROMAN TO MODERN SPAIN |
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