%0 Journal Article
%T Hidroqu¨Şmica do rio Solim£żes na regi£żo entre Manacapuru e Alvar£żes: Amazonas - Brasil
%A Queiroz
%A Maria Mireide Andrade
%A Horbe
%A Adriana Maria Coimbra
%A Seyler
%A Patrick
%A Moura
%A Candido Augusto Veloso
%J Acta Amazonica
%D 2009
%I Instituto Nacional de Pesquisas da Amaz?nia
%R 10.1590/S0044-59672009000400022
%X the present study evaluated the physical and chemical characteristics of the water of the rivers solim£żes, purus and their tributaries, collected in november of 2004 in the state of amazonas between the cities of manacapuru and alvar£żes and anam£ż and pirarauara. physical-chemical analyses (temperature, ph, electrical conductivity, turbidity, ca2+, na+, k+, mg2+, hco3-, so42-, cl-), and trace-elements (li, b, al, sc, v, cr, mn, fe, co, cu, zn, as, se, rb, sr, mo, cd, sb, cs, ba, pb, la, ce e u) and sr isotopes were accomplished. the analyzed parameters and the chemical composition show that the waters of the rivers and tributaries of the central region of the amazonia are chemically distinct between them. the white waters of solim£żes are calcium-bicarbonate and of purus are bicarbonates, and the respectives tributaries are sodium-potassium-bicarbonate and sodium-potassium-sulphate. this causes the white poorly acided waters to the neutrals and more conductives, while the black ones are less mineralized, more acids, mainly of purus. the ba, sr, cu, v e as in highest levels differentiate the solim£żes white waters of the purus`s waters, well as the tributaries of the first related to the second. this complex of caracteristics indicates that the solim£żes as the purus and their respectives tributaries are submitted to geological/ambiental distinct conditions. the influence of arrives in port of sediments of andes is diluted at the currency of basin of the solim£żes and it reflects on formation of fertile valleys solim£żes and purus. by another view, the crust rocks, represented by the shields of the guianas and brasileiro both contribute, but in a reduced proportion.
%K physical and chemical parameters
%K tributaries of the solim£żes and purus
%K black water
%K isotopes of sr
%K diagrams of stability.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0044-59672009000400022&lng=en&nrm=iso&tlng=en