Selection of areas for the construction of a geological repository in Minas Gerais

The siting of geological disposal facilities for the spent fuel is essential to ensure the proper long-term isolation of the radionuclides from the biosphere. However, the large number of factors involved - being: long-term safety, socio-economic-environmental viability and technical feasibility; - Associated with the enormous geographic space available for the deployment of the repository, the decision-making process complex. The study applied a methodology of multi criteria spatial decision analysis to the geographic region of the state of Minas Gerais. In order to identify, classify and exclude regions of interest for the installation of a geological repository. The results indicate good possibilities of adequate areas for a repository and it was compared with a similar study carried out in the state of Rio de Janeiro. It was concluded that new studies of geological surveys and the inclusion of new data are needed. (author)