Utilização das logicas booleana e fuzzy para analise metalogenetica na Folha Pilar do Sul (SP) via sistema de informações geograficas

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

This work aims to describe methodological procedures to implement the use of Boolean and fuzzy logic applied to metallogenetical analysis. The study area is located in São Paulo state (Pilar do Sul quadricule) and focus to identify target areas for Cu and Pb. The use of Geographical Information Systems (GIS) is essential to achieve good results and sophisticated logical operations produces maps and reports which no longer necessarily represent a single integration. The main difference between the Boolean and fuzzy logics is the possibility to handle uncertainties, the former shows sharp contrasts, the later shows diffuse limits. The use of GIS and non-cumulative algebra on geological data set, with inherent uncertainties, provided the definition of target areas. Target areas defined by the fuzzy logic are better spatial distributed than those defined by the Boolean logic

ASSUNTO(S)

logica simbolica e matematica sistemas de informação geografica processamento de imagens - tecnicas digitais

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