Geochemical approach to the Bou Hadjar hydrothermal system (NE Algeria) |
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Authors: | Fatima-Zohra Kedaid Mohamed Mesbah |
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Affiliation: | aCentre de Développement des Energies Renouvelables, B.P. 62, Route de l'Observatoire, Bouzaréah, Alger, Algeria;bLaboratoire d'Hydrogéologie IST/USTHB, B.P. 32, El Alia Bab-Ezzouar, Alger, Algeria |
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Abstract: | The Bou Hadjar low-temperature hydrothermal system is located in northeast Algeria. The four main thermal springs that are the subject of the study emerge ith temperatures between 32 and 60°C from allochthonous formations. The reservoir temperature has been estimated from chemical compositions by utilizing simultaneously the silica, gas and sulfate-water oxygen isotope geothermometers, fluid-mineral equilibrium calculations, and a mixing model. According to these thermometric methods, the most probable subsurface temperature is in the range 75–106°C. The mixing model suggests a temperature of 125°C for the parent water. |
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Keywords: | geochemistry thermal springs Algeria |
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