Since the beginning of this Quadrilátero Ferrífero's geomorphological study, specially to the question of erosion surfaces and their correlation to this century many authors have dedicated themselves to the Brazilian southeastern planation surfaces. In this work the Quadrilátero Ferrífero's erosion surfaces were studied based in a morphometrical analysis, taking into consideration the number and surface área of the relief's high portions. The interpretation of quantitative analysis revealed that the erosion surfaces are the result of an important differential erosion process, and their articulation, of a significant lithostructural control. The regional correlation of erosion surfaces based in leveis is not recommendaded, due to lithological and structural diversities as well as to post Cretaceous tectonics.
