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Hydrochemistry of Avène thermal waters (Avène‐les‐Bains, France)
Author(s) -
Lions J.
Publication year - 2020
Publication title -
journal of the european academy of dermatology and venereology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.655
H-Index - 107
eISSN - 1468-3083
pISSN - 0926-9959
DOI - 10.1111/jdv.16336
Subject(s) - dolomite , groundwater recharge , quartz , calcite , spring (device) , meteoric water , mineral , groundwater , water quality , mineral water , hydrothermal circulation , geochemistry , geology , hydrology (agriculture) , surface water , mineralogy , environmental science , aquifer , environmental engineering , archaeology , ecology , mechanical engineering , history , paleontology , geotechnical engineering , engineering , seismology , biology
Avène Thermal Spring Water (Avène TSW) has been used since 1743 in the treatment of various pathologies. The hydrothermal system is delimited by a reservoir mainly composed by dolomite and quartz in which meteoric waters infiltrate allowing rock–water interactions that control the water's chemical composition. Water analysis and geochemical calculations highlight that water composition is stable and low mineral salt content are controlled by natural geochemical equilibrium and the solubility of the minerals calcite, dolomite and quartz according to temperature and CO 2 pressure within the reservoir. In addition, the annual monitoring of surface waters sampled on the impluvium surface area confirms the absence of anthropic impact on water quality. The forest and the low human activity of the watershed contribute to preserve the natural groundwater quality. This confirms that nowadays, the recharge water is still of great quality for the future generation.