Bio
Research
Dr. Spry’s research interests are in economic geology, mineralogy and petrology, and the geochemistry of metallic mineral deposits. He is particularly interested in the petrological, mineralogical, structural, geochronological (Re-Os), light (S, C, O and H) and light and non-traditional stable isotope (Te, Zn, Cd), and fluid inclusion characteristics of epithermal and mesothermal gold deposits, as well as the effects of metamorphism on massive sulfide deposits. Current research projects include: the origin of metamorphosed Proterozoic base metal-gold deposits (Colorado); the origin of gold telluride deposits in Greece; the use of trace elements in oxides, silicates, and sulfides as exploration guides to metamorphosed Cu-Pb-Zn-Ag-Au ores; the origin of nodular sillimanite rocks and their genetic relationship to metamorphosed massive sulfide deposits; and the crystallographic characterization of precious metal sulfides and sulfosalts (see sulfosalt “Spryite” named after Spry).
Research Projects
- Trace element chemistry of common silicates (garnet, biotite, staurolite, chlorite), oxides (gahnite, magnetite), and sulfides (pyrite, pyrrhotite, chalcopyrite, and sphalerite) as guides in the exploration for metamorphosed Proterozoic massive sulfide deposits in the the Bergslagen district (Sweden) and central Colorado.
- The mineralogy and geochemistry (fluid inclusions and stable isotopes) of epithermal and mesothermal gold deposits and porphyry style copper and/or molybdenum deposits, Greece (with Panos Voudouris, University of Athens; Vasilios Melfos, Aristotle University of Thessaloniki).