Development and Application of Stress Transfer Modelling for Area Selection in Mesothermal Gold Systems

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Development and Application of Stress Transfer Modelling for Area Selection in Mesothermal Gold Systems. Many mesothermal gold systems are hosted by low displacement faults and shear zones which develop adjacent to high displacement, crustal-scale faults and shear zones. By analogy with modern, seismogenic fault systems, the gold-hosting structures are interpreted as aftershock arrays whose formation is related to stress redistribution and fluid flow after major slip events on high displacement faults. This project will test and develop Coulomb stress transfer modelling techniques, currently used for aftershock risk assessment, for predicting the distribution of low displacment, gold-hosting structures around crustal-scale shear systems. The technique is expected to provide a powerful tool to assist area selection in fault-related epigenetic ore systems.