Geochemical characterization of the Villarrica geothermal system, Southern Chile, part Ⅱ : Site-specific re-evaluation of SiO_2 and Na-K solute geothermometers

摘要

Solute geothermometry often leads to a broad range and often inconsistent calculated reservoir temperatures, in particular when exploring geothermal systems, where only limited information (geology, borehole data etc.) is available. The application of different Na-K and SiO2 geothermometer, the most widely used methods, not uncommonly lead to deviations of results by up to 200 K for one sample.