Abstract
During the division of the Paraná Basin during the Devonian, the Alto Garças Sub-basin was deposited to the north of the basin, while the Apucarana Sub-basin was deposited to the south. The Alto Garças Sub-basin, which evolved in a shallower sedimentation environment with large amounts of sandstones and siltstones, is composed of Units 1, 2 (both of interest in the present study), 3 and 4…