Abstract
The genetic conditions of two fluorspar hydrothermal deposits are determined by the study of fluid inclusions. Observations through a cooling- and heating-stage microscope yield information on the salinity and deposition temperature. Chemical analysis by crushing and leaching allows determination, using chemical geothermometers, of the fluid's chemical composition and initial temperature. Using thermodynamic modeling, we describe the evolution of the solution and the process of fluorite deposition from a rock source in a hot reservoir at a temperature close to 300 degrees C to deposition ending close to 180 degrees C.
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