Abstract
The present work aims to understand which processes act and acted in the genesis of a Red Ferric Latosolic Nitisol in an area of litological contact between basic rocks from the Serra Geral Formation and the sandstones of the Caiuá Formation, in the basin of the Gurupá river, in the municipality of Floraí, state of Paraná, Brazil. This soil is commonly found in all north-northwestern reg…