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Suitable Re-Use of Abandoned Quarries for Restoration and Conservation of the Old City of Salamanca—World Heritage Site

1
Department of Geology, University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
2
CGeo Research Centre, University of Coimbra—Pólo II, 3030-790 Coimbra, Portugal
3
Departamento de Geología, University of Salamanca, 37008 Salamanca, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(16), 4352; https://doi.org/10.3390/su11164352
Received: 28 June 2019 / Revised: 6 August 2019 / Accepted: 7 August 2019 / Published: 12 August 2019
(This article belongs to the Special Issue Natural Stone and Architectural Heritage)
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Abstract

Martinamor granite has been used for centuries in the monumental buildings of Salamanca city. In this study, the fracturing pattern of the Martinamor granite outcrops was evaluated in order to assess the possibility of supplying material for the restoration of heritage monuments. Several joint sets with a mean joint spacing lower than one meter compose the fracturing pattern, making the massive exploitation of this granite impossible. Only small blocks for restoration can be obtained; therefore, the outcrops should be protected for such purpose. The area of outcrops and ancient quarries, as well as that of mining activities from the same period, should be preserved as examples of historical extraction techniques and as a remembrance of our geological-materials-based society. Several proposals are presented for the geoconservation of the site. View Full-Text
Keywords: natural stone; fracturing pattern; quarrying; geoheritage; Unesco World Heritage Site natural stone; fracturing pattern; quarrying; geoheritage; Unesco World Heritage Site
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Sousa, L.; Lourenço, J.; Pereira, D. Suitable Re-Use of Abandoned Quarries for Restoration and Conservation of the Old City of Salamanca—World Heritage Site. Sustainability 2019, 11, 4352.

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