Low Enthalpy Geothermal System at Dabeiba, Colombia; an Assessment Through the Hydrogeochemistry of Thermal Waters

Dabeiba is a small locality situated at the northern part of the Western Cordillera of Colombia which has the presence of thermal springs with interesting geology and hydrochemistry data. Through stable isotopes a faint mixture between the geothermal waters with superficial waters was identified. Th...

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Detalles Bibliográficos
Autor Principal: Gómez Díaz, Esteban
Formato: Artículo (Article)
Lenguaje:Desconocido (Unknown)
Publicado: PROCEEDINGS, 44th Workshop on Geothermal Reservoir Engineering, Stanford Geothermal Workshop 44th Annual Meeting 2019
Materias:
Acceso en línea:http://babel.banrepcultural.org/cdm/ref/collection/p17054coll23/id/1246
Descripción
Sumario:Dabeiba is a small locality situated at the northern part of the Western Cordillera of Colombia which has the presence of thermal springs with interesting geology and hydrochemistry data. Through stable isotopes a faint mixture between the geothermal waters with superficial waters was identified. The springs are sodium-chloride type slightly diluted, with high concentration of boron. Using the conservative elements allowed identifying all springs from the same reservoir and they are in partial equilibrium according to Na-K-Mg diagram. The reservoir temperature was measured with solute geothermometers selected by the suitable conditions, identifying a low enthalpy system with values of ~150°C. The geothermal system is associated with deeply circulating waters in a fracture zone, where the waters possibly come of releasing from meta-sedimentary rocks and apparently with a bit of magmatic input, explaining the high concentrations salt components and boron.