Abstract
In the lower course of the Negro River is located the Anavilhanas Archipelago, the North of Amazon Basin. The Anavilhanas Archipelago is one of the largest fluvial island systems on earth and covered by Igapó Forest. However, the formation of Igapó Forest and record of the pre-colonial human populations in Anavilhanas region is still unknown, particularly during the Holocene. The sediment…