A detailed macro- and micromorphological investigation was carried out in two Ultisol (Argissolo Amarelo) and one Aridisol (Planossolo Nátrico) profile from a tableland surface of the San Francisco river basin in Petrolina, Pernambuco State, Northeastern Brazil. The study aimed to characterize the soils micromorphologically, evaluating their pedogenesis to help understand the soil diversity in the landscape. Results indicate that the three soils were developed from Post-Cretaceous sediments mixed with Pre-Cambrian crystalline rock weathered materials and, also, most probably, with materials […]