This work, presented at NWLDW 2025, investigates the luminescence ages of a Vertisol from the Rio do Peixe Sedimentary Basin (PB, Brazil), integrating grain size, micromorphological, and weathering analyses. The results indicate that part of the dated material was internally mobilized by pedogenetic processes such as pedoturbation, challenging strictly depositional interpretations. The study reinforces the role of soil as an active record of the landscape and highlights the importance of pedogeomorphological approaches in tropical semiarid environments.