Third Party Funds Group - Sub project
Acronym: ForMovFluid
Start date : 01.07.2025
Website: https://formovfluid.eu/
This project aims to investigate the physicochemical controls on MVT ore formation in foreland basins by integrating petrological and geochemical datasets with advanced thermodynamic reaction-transport models. The geochemical modeling will provide a basis for quantifying fluid fluxes in and out of ore deposits, enabling an assessment of CO₂ entrapment during ore formation and associated secondary mineral precipitation. Targeted field sites include world-class Zn-Pb MVT deposits in the Aquitaine Basin (Southern France) and the Ebro Foreland Basin (Northwest Spain). Petrological data (e.g., alteration mineralogy and extent of alteration zones) and geochemical data (e.g., chemical and isotopic composition of alteration minerals and vein-filling material) will be integrated into multi-dimensional (1D, 2D, and 3D) reaction-transport models using software such as GEMS, PhreeqC, PHAST, and TOUGHREACT. This integration of natural datasets with modeling calculations will elucidate the chemical processes driving ore formation and characterize the physicochemical properties of ore-forming fluids. Furthermore, combining steady-state (equilibrium) reaction-transport models with multi-dimensional (kinetic) reaction-transport and flow models will enable an investigation of key controls—such as host rock composition, fluid evolution, permeability, temperature, and pressure—on ore formation along fluid flow paths. This approach will also facilitate the estimation of fluid entrapment and release fluxes in MVT deposits.