Epithermal Ore Deposits, and Transition to the Porphyry Environment: Formation and Exploration (SC2)

East Convention Level / TBA
Registration Required


Most epithermal ore deposits form in the shallow (<1 km depth) magmatic-hydrothermal environment of volcanic arcs, with a commonly asymmetric transition to deeper (~1.5-3 km) intrusion-hosted ore deposits of the porphyry system. Alteration and subsequent precious and/or base-metal mineralization at both epithermal and porphyry depths is related to the spatial and temporal evolution of the same hydrothermal system. Mineralogical interpretation is critical to assess epithermal and porphyry prospects: to determine erosion level (from paleosurface through the epithermal environment to near the tops of porphyry deposits); to correctly interpret geochemical and geophysical anomalies; and to estimate location, proximal or distal, relative to a potential ore deposit. Epithermal deposits also form in extensional settings with somewhat different mineralogy and metal characteristics, but with hydrothermal processes similar to those in arcs. Information from active hydrothermal systems, including fluids, flow paths, and mineralogy, is useful when applied to exploring their extinct equivalents. This course stresses mineralogical interpretation coupled with exploration insights. Read More


Saturday, Jan 18 - Sunday, Jan 19 (8:30 am - 4:30 pm)


East Convention Level


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