The question of the Quadril?tero Ferr?fero erosion surfaces correlation.

Desde o in?cio deste s?culo, v?rios autores se dedicaram ao estudo da geomorfologia do Quadril?tero Femfero, em especial ? quest?o das superf?cies de eros?o e sua correla??o com as superf?cies de aplainamento da regi?o sudeste do Brasil. Neste trabalho, as superf?cies de eros?o do Quadril?tero Femfero foram estudadas com base em uma an?lise morfom?trica, levando-se em considera??o o n?mero de partes altas do relevo e suas respectivas ?reas. A interpreta??o da an?lise quantitativa revelou que as superf?cies de eros?o resultam de um importante processo de eros?o diferencial, e sua articula??o, de um marcante controle estrutural. A correla??o regional das superf?cies de eros?o fundamentada em n?veis ? temer?ria, pelas ?s diversidades litol?gicas, estruturais e ? tect?nica p?s-cret?cica.Since the beginning of this Quadril?tero Ferr?fero'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 Quadril?tero Ferr?fero's erosion surfaces were studied based in a morphometrical analysis, taking into consideration the number and surface ?rea 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