Identification and characterization of geological material used in buildings and tourist attractions in the central area of Florianópolis

Abstract

This work identified the geological material used in the paving, ornamentation, support and/or coating of ten buildings and tourist attractions located in the Historic Center of Florianópolis. The sites surveyed were selected by criteria such as: ease of access to geological material, availability of public visitation and proximity of sites to each other. The identification and characterization of the material was carried out through fieldwork and analysis of samples in the office through the production of thin sheets of standard rock and subsequent petrographic description. The results point to the majority use of granite in paving and eventually as coating, while marbles, gneisses and quartzites are used, in general, in the ornamentation and support of buildings. It was also found that the geological material cataloged in the Historic Center comes mostly from other cities and states, with the locally extracted granites being used only occasionally.