(1) Instituto Nacional de Limnología (INALI-CONICET), J. Macia 1933, 3016 Santo Tomé, Santa Fe, Argentina;(2) Instituto Nacional de Investigación y Desarrollo Pesquero, Paseo Colón 982, Anexo Pesca, 1035 Buenos Aires, Argentina
Abstract:
The major ion chemistry of 639 aquatic localities in Argentina is presented and discussed. Salinities range from quite fresh (<3 g L–1) to highly saline (>300 g L–1); a variety of ion dominances occur but NaCl predominates in highly saline waters. The principal mechanisms controlling water chemistry are rock dominance and evaporation; atmospheric contributions are less important.