Quaternary deposits in the Serra da Capivara National Park and surrounding area, Southeastern Piauí state, Brazil

Research on Quaternary deposits in Serra da Capivara National Park, Brazil, reveals that the landscape evolution began around 436,515 years ago with clayey sediment deposition by the Piau River. The study identified colluvial and alluvial deposits indicating a semiarid climate, with fluvial channels likely exhibiting a braided pattern between 296,550 and 116,300 years ago. Depositional processes intensified during the last glacial maximum in the Northern Hemisphere, occurring between 15,800 and 10,350 years ago, marking the transition from Pleistocene to Holocene. The study used morphostratigraphical, sedimentological, and geochronological methods, including luminescence dating (thermoluminescence and optically stimulated luminescence), to interpret paleoenvironmental events.

Santos, J. C., Barreto, A. M. F., & Suguio, K. (2012). Quaternary deposits in the Serra da Capivara National Park and surrounding area, Southeastern Piauí state, Brazil. Geologia USP. Série Científica, 12(3), 115–132. https://doi.org/10.5327/z1519-874x2012000300008