Context of this study _ Purpose _________ Past work ________ Exploration for heavy minerals by means of aeroradioactivity _______________________________________ Choice of study area ______________________________ Geology of study area _____________________________ Mechanics of this study _______________________________ Aeroradioactivity-map characteristics ________________ Field methods ___________________________________ Laboratory methods ______________________________ Background radioactivity response of some lithologic units _ Anomaly classification ________________________________

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No abstract