Hydrochemistry and geology in the Brazilian Amazon region Hydrochemistry and geology in the Brazilian Amazon region June 16, 2015 AmazCitSci Publication link: https://www.researchgate.net/publication/285496289_Hydrochemistry_and_geology_in_the_Brazilian_Amazon_region Publication Year: 1968 Publication Author: Sioli, H. Publication Magazine: Amazoniana Newer Biomass and Net Primary Production of Central Amazonian Floodplain Forests Older Studies in Amazonian waters