Géochimie de la silice dans les milieux évaporitiques sulfato-chlorurés. Etude des saumures du Chott El Jerid en Tunisie
1982; Volume: 35; Issue: 1 Linguagem: Inglês
10.3406/sgeol.1982.1608
ISSN2613-277X
AutoresMoncef Gueddari, Bertrand Fritz, Yves Tardy,
Tópico(s)Karst Systems and Hydrogeology
ResumoWaters and brines of the Chott El Jerid in Tunisia are of sulfate, chloride, sodium and magnesium type. The silica molality in solution decreases as a function of the brine concentration. A new calculation method of ion and water activities (Pitzer's model) and silica activity in brines (Marshall's equations) allows the discussion of the precipitation conditions of silica and silicates in evaporitic environments.
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