Archaeological Perspective of the Bananal Island, Brazil Julio Cezar Rubin De Rubin∗y1, Rosicl´erTheodoro Da Silva , Maira Barberi3,2, and Joanne Ester Ribeiro Freitas 1PUC Goi´as(Goi´as){ R. 235, 722 - Setor Leste Universit´ario,Goi^ania- GO, 74605-050, Br´esil 3Julio Cezar Rubin de Rubin (JCRR) { Av. Universit´aria1440 Setor Universit´arioGoi^aniaGO, Br´esil 2Rosicler Theodoro da Silva (RTS) { Av. University´aria1440 Setor Universit´arioGoi^aniaGoi´as,Br´esil R´esum´e The archaeology of the Brazilian Central Plateau presents little information regarding the occupation of the area in the late Pleistocene and early Holocene. We highlight the re- search carried out in Santa Elina, Abrigo-do-Sol and Serran´opolis. Some areas present great potential for archaeological research in this period based on geology, geomorphology and the presence of archaeological sites, among them the Quaternary Fluvial Basin of the Ba- nanal (QFBB), the intracratonic basin that forms part of the Araguaia river basin (medium Araguaia) , resulting from denudational processes and covering an area of approximately 106,000km2. In the north of the basin is the Bananal Island, which occupies an area of 20,000 km2 (approximately twice the area of the Republic of Cyprus) encompassing the Araguaia National Park and the Araguaia Indigenous Area. In the BFQB, there are deposi- tional units inserted in the Middle Pleistocene (240,000 +/- 29,000 and 159,600 +/- 18,542 years BP), in the Upper Pleistocene (121,000 +/- 15,000 and 17,200 +/- 2,300 years BP) and in the Holocene (9,800 +/- 1,100 years BP). These units present records of paleohydro- logical and paleoclimatic changes. Also significant for archaeology are the dates obtained in sediments of the Araguaia Formation that indicate that the QFBB has undergone changes in the fluvial pattern in recent times, more precisely during the average Pleniglacial (56,600 +/- 5,900 and 34,000 +/- 4,600 years BP) and in the Upper Pleniglacial (26,400 +/- 3,100 and 17,200 +/- 2,300 years BP). A survey conducted in the 1970s showed a thickness of 47.9 meters for the Araguaia Formation. The information concerning the QFBB presents a scientific significance for the archaeology of the region, when mainly analyzing aspects such as the spatial distribution, the thickness of the depositional package, the chronology and the 10 archaeological sites of farmers and ceramists groups identified in the Bananal Island. In this sense, the expansion of archaeological research on Bananal Island, with emphasis on the late Pleistocene and early Holocene sites, may provide important information regarding the precolonial and paleoenvironmental occupation of the region. Mots-Cl´es: geoarchaeology, brazilian archaeology ∗Intervenant yAuteur correspondant: [email protected] sciencesconf.org:uispp2018:178640.