Communication Dans Un Congrès Procedia Earth and Planetary Science Année : 2013

Evidence for a Saline Component at Shallow Depth in the Crystalline Armorican Basement (W France)

Résumé

Saline fluids at shallow depth (50 - 450 m) in the Armorican basement were investigated. Fluids with salinities ranging from 80 to 900 mg/L mix with modern shallow groundwaters containing anthropogenic solutes. The most saline fluids are deeper or more isolated from mixing. These fluids reveal Br/Cl and SO4/Cl ratios that are typically marine. This work establishes the migration and the preservation of a marine end-member in a basement aquifer, and may provide keys for the understanding of such fluid circulation.

Dates et versions

insu-00853165 , version 1 (22-08-2013)

Identifiants

Citer

Luc Aquilina, Antoine Armandine Les Landes, Virginie Ayraud-Vergnaud, Thierry Labasque, Clément Roques, et al.. Evidence for a Saline Component at Shallow Depth in the Crystalline Armorican Basement (W France). Fourteenth International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.19-22, ⟨10.1016/j.proeps.2013.03.157⟩. ⟨insu-00853165⟩
262 Consultations
0 Téléchargements

Altmetric

Partager

  • More