Geophysical properties associated to Juá District geology, Ceará, Brazil

Airborne magnetic and electromagnetic highresolution data were processed to unveil physical properties of Pre-Cambrian high-grade terrains in Northeast Brazil. The method followed the common data correction plus, map and profile interpretation, ending with spatial analysis by probability ratio technique. Local geologic map and, lineament interpretation complete the data set. Results show a geophysical differentiation exclusive for some rock units and, boundaries were redefined improving the geologic map. Also, shallow and deep structures were distinguished