Deep Environment of Volcanogenic Epithermal Mineralization: Proposed research drilling at Creede, Colorado



Proposed research drilling in the Creede mining district will constrain relations between epithermal veins and the deeper thermal, fluid flow, and volcanic structural environment. Major targets include a deep inferred heat source in the form of a concealed intrusion and possibly associated stacked porphyry-type mineralization; thermal, chemical, and hydrologic evolution of the fossil hydrothermal system in comparison with active geothermal environments; and temporal, structural, and petrologic relations between the mineralization and the hosting silicic caldera cluster.