Provenance and Transport Processes ofSediments along the Southeastern BrazilianCoast

摘要

Natural gamma radiation measurements of Quaternary sedimentary deposits wereperformed with the aim of understanding the provenance and transport processes of sedimentsalong the coastal zone of the Brazilian Southeast The method employs thorium, uranium andpotassium as tracers of the mineralogical properties of beach sand minerals, which reflect thegeological history of transport and sorting processes. A considerable positive correlation with thegeological evolution of these sandy coastal deposits was observed.