Botucatu Formation, Geological formation in Rio Grande do Sul, Brazil.
Botucatu Formation is a geological layer in southern Brazil's Paraná and Pelotas basins made up of fine-textured sandstone spread across an enormous area. The sandstone deposits display distinctive cross-patterns formed by ancient wind processes over millions of years.
This layer formed during the Jurassic and Cretaceous periods through wind deposition in an ancient desert landscape that later became a flat sandstone plateau. Overlying basalt lava later covered these deposits and protected them from erosion.
Research teams from Brazilian universities regularly conduct field studies at the formation to document its geological characteristics and paleomagnetic properties.
Visitors can observe outcrops of this layer at various places in southern Brazil's landscape, especially where rivers and natural erosion have exposed it. Local geological sites often provide information and allow close-up examination of the sandstone layers.
The sandstone blocks preserve fossil footprints of dinosaurs and other prehistoric animals that crossed this region millions of years ago. These well-preserved track fossils are rare windows into the daily life of a vanished world.
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