Estudo sedimentológico das "bandas onduladas" de solos da formação Bauru na área balisada pelas cidades de Osvaldo Cruz: Rancharia e Tupã Estado de São Paulo
Authors
Kenitiro Suguio
Instituto de Geociências; Departamento de Paleontologia e Estratigrafia
Armando Márcio Coimbra
Instituto de Geociências; Departamento de Paleontologia e Estratigrafia
The thin layers of higher clay content than the surrounding soil, known as "bandas onduladas", frequently reported in the Bauru Formation area of the State of São Paulo occidental plateau (Brazil), are here studied in a region bound by Osvaldo Cruz - Tupã and Rancharia cities. The genetic significance of their sedimentological characteristics (grain size and heavy mineral composition) and other properties (clay, calcium carbonate and iron oxyde content) is considered in comparison with that of Bauru Formation unweathered sediments.
