A methodology for locating the original quarries used for constructing historical buildings: application to Málaga Cathedral, Spain |
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Authors: | E Galn M I Carretero E Mayoral |
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Institution: | a Departamento de Cristalografía y Mineralogía, Facultad de Química, Universidad de Sevilla, Prof. García González s/n, Apdo. 553, 41071 Sevilla, Spain b Departamento de Geología, Facultad de Ciencias Experimentales, Universidad de Huelva, 21819 Palos de la Frontera, Huelva, Spain |
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Abstract: | It is often necessary to locate the original quarry which supplied the stone for a particular historical building. This stones could be used for future restoration work and for testing in the laboratory (artificial aging tests, physical properties determination, control of the efficacy of conservation treatments, etc.). Generally, reviewing historical documentation gives information about the geographical setting of quarries and location of the stones in the monument, but this information needs to be proved by field and laboratory studies. The comparative study of stone from quarries and monuments should basically include the following: (1) mineralogical and petrographical studies; (2) the chemical analysis of major, minor and trace elements; (3)stable isotopes determinations; (4) physical properties of quarry materials and unweathered building stone (water absorption, ultrasound transmission velocity, porosity and porous system, density, bulk density, compressive strength, etc.). This methodology was applied to Málaga Cathedral stones represented in the main façade, towers, and the western zone of the terrace, which, according to historical literature, came from Almayate (Miocene–Pliocene limestones) and Cerro Coronado (Permotriassic sandstone) in Málaga. The conclusion of the comparative study carried out on quarries and building stones was consistent with the information available from the historical documentation. |
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Keywords: | Limestone Málaga Cathedral Methodology Quarries location Sandstone |
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