Géochimie de la silice dans les milieux évaporitiques sulfato-chlorurés. Etude des saumures du Chott El Jerid en Tunisie
- 1 January 1982
- journal article
- research article
- Published by PERSEE Program in Sciences Géologiques, Bulletins Et Mémoires
- Vol. 35 (1) , 41-54
- https://doi.org/10.3406/sgeol.1982.1608
Abstract
Waters 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.Keywords
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