Dr. Stephen Piercey
Associate Professor and NSERC-Altius Industrial Research Chair in Mineral Deposits
Fax: 709 864-2589
Email: spiercey @ mun.ca
I am a field geologist whose research involves using field relationships obtained through mapping, stratigraphy, and logging of drill core to provide the framework upon which to undertake more detailed petrography and analytical work. I extensively use lithogeochemistry, radiogenic isotopes (Nd-Hf-Sr-Pb), stable isotopes (C-H-O-S), geochronology (U-Pb, Ar-Ar, Re-Os), and microanalytical methods to solve various geological problems. My specific research interests include:
- The interrelationships between magmatism, tectonics, and ore deposit formation.
- Crustal growth, tectonics, and metallogeny of ancient orogens (e.g., Cordillera, Appalachians) and greenstone belts (e.g., Abitibi, Slave Province).
- Volcanic, sedimentary, and hydrothermal alteration facies analysis of mineral deposits to delineate the setting, style, alteration distribution, and basin analysis, with particular emphasis on volcanogenic massive sulfide (VMS), volcanic-hosed uranium, and sediment-hosted base metal deposits.
- Lithogeochemistry, mineralogy, and isotopic methods to understand the petrology of ore-associated and ore-barren magmatism to understand the relationship between magmatism and tectonics in ore deposit genesis and localization (e.g., VMS, orogenic Au, volcanic-hosted U).
- Hydrothermal alteration systems: mineralogy, lithogeochemistry, chemical fluxes, and applications to exploration.
- Shales and hydrothermal sediments as vectors to hydrothermal mineralization and their utilization to understand paleoceanography and oceanic oxidation state and its control on ore deposit genesis and localization.
- Sediment and sedimentary rock geochemistry, radiogenic isotopes, and detrital zircon U-Pb analysis to understand sediment provenance and utilization in understanding terrane translation, basin reconstruction, and controls on ore deposit localization.
- Origin of fluids and metals in ore deposits.