Correlação de dados geofísicos em pesquisa mineral de ocorrência de cobre em Caçapava do Sul (RS)

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Pereira, Henrique Garcia [UNESP]
Moreira, César Augusto [UNESP]
Camarero, Pedro Lemos [UNESP]

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Copper is a metal extremely used in various sectors of the industrial production and civil construction. Social and technological growth experienced by contemporary society has led several known reserves that right to metallic mineral soil. The search for new deposits or reevaluation of previously known occurrences becomes increasingly important. In this sense, the Geophysics can be used as a research tool for better estimates of subsurface mineral potential. This paper describes the use of electric and electromagnetic walking tests for the evaluation of a probable continuity of mineralization in the southwest side mineralized copper occurrence Capão Grande. The subsurface investigation was performed through four profiles arranged perpendicularly to the mineral occurrence. Inversion models from walking electric allowed the identification of central areas of low resistivity for profiles 2, 3 and 4, possibly associated with subsurface mineralization, suggesting its continuity to southwest of the occurrence. The apparent conductivity sections allowed the estimation of the presence of sulfides in subsurface, when there were high correlations with previous areas of conductivity low resistivity associated with mineralization.



Copper, Geophysics, High conductivity, Lateral continuity, Low resistivity

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Geociencias, v. 36, n. 4, p. 717-729, 2017.