Geoffrey S. Plumlee

• The environmental geochemistry of mineral deposits
• Compositions and metal loadings from several seeps at the Summitville Mine
• Geoenvironmental models of mineral deposits, and geology-based mineral-environmental assessments of public lands
• Mineralization in the waning Creede epithermal system, and similar behavior in other systems
• Processes controlling epithermal mineral distribution in the Creede mining district, Colorado