Abstract

This paper presents an application of radiometric method through Cabo Frio region, Brazil. The radiometric data collected by
aircraft allowed the making of radiometric maps in counts per second of the Uranium, Thorium and Potassium channels by
interpolation in the study area. The radiometric maps provide great information about shallow geology. The comparison of the
generated maps with the topographic and geological maps allowed setting out the marine deposit, silty-sand-clayey and sandy
areas which indicate low count, as well as high count areas, associated in the majority of cases to orthogneiss and garnet situated
at high ground region.