Paul Spry

Professor [GE AT]


Dept:Geological And Atmospheric Sciences
Office:253 Science
2237 Osborn Dr
Ames IA


Education B.S. (with Honors) University of Adelaide, 1977 M.S. University of Adelaide, 1979 Ph.D. University of Toronto, 1984
Research Dr. Spry’s research interests are in economic geology, mineralogy and petrology, and include the geochemistry of metallic mineral deposits. He is particularly interested in the petrological, mineralogical, structural, geochronological (Re-Os), light stable isotope (S, C, O and H), 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: stable tellurium isotopes of tellurides in gold-silver telluride deposits; the origin of gold telluride deposits in Greece, and Fiji; the use of trace elements in oxides and silicates as exploration guides to metamorphosed Cu-Pb-Zn-Ag ores in the Kanmantoo Group, South Australia and the Stollberg Pb-Zn-Ag ore field, Sweden; the origin of meta-exhalites associated with metamorphosed massive sulfides in the southern Curnamona Province, Australia (including the Broken Hill Pb-Zn-Ag deposit); 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 new sulfosalt “Spryite” named after Spry). Google Scholar Profile
Teaching Geol 105 - Gems and Gemstones Geol 316 - Optical Mineralogy Geol 365 - Igneous and Metamorphic Petrology Geol 420/520 - Mineral Resources Geol 507 - Midwestern Geology Field Trip Detailed Course Descriptions
Recent Refereed Publications

Saintilan, N.J., Creaser, R.A., and Spry, P.G., 2017, Re-Os systematics of löllingite and arsenopyrite in granulite facies garnet rocks: Insights into the thermal evolution of the Broken Hill block during the Early Mesoproterozoic (New South Wales, Australia), Canadian Mineralogist, in press.

Fornadel, A.P., Spry, P.G., Schauble, E.A., Hagneghadar, M.A., Jackson. S.E., and Mills, S.J., 2017, Theoretical and measured stable Te isotope fractionation in tellurium-bearing minerals in precious metal hydrothermal ore deposits. Geochimica et Cosmochimica Acta, v. 202, p. 215-230.

Kelley, K.D., and Spry, P.G., 2016, Critical metals associated with alkaline-rock related epithermal gold deposits. Reviews in Economic Geology, v. 18, p. 195-216.

Bindi, L., Stanley, C.J., and Spry, P.G., 2015, Cervelleite, Ag4TeS: solution and description of the crystal structure. Mineralogy and Petrology, v. 109, p. 413-419.

Bristol, S.K., Spry, P.G., Voudouris, P., Melfos, V., Mathur, R.D., Fornadel, A.P., Sakellaris, G.-A. 2015, Geochemical and geochronological constraints on the formation of shear-zone hosted Cu-Au-Bi-Te mineralization in the Stanos area, Chalkidiki, northern Greece. Ore Geology Reviews, v. 66, p. 266-282.

O’Brien, J.J., Spry, P.G., Nettleton, D., Ruo, X., Teale, G.S., Jackson, S.E., and Rogers, D., 2015, Random forests as a statistical method for distinguishing gahnite compositions as an exploration guide to Broken Hill-type Pb-Zn-Ag deposits in the Broken Hill domain, Australia. Journal of Geochemical Exploration, v. 149, p. 74-86.

O’Brien, J.J., Spry, P.G., Teale, G.S., Jackson, S.E., and Rogers, D., 2015, Gahnite composition as a means to fingerprint metamorphosed base metal deposits. Journal of Geochemical Exploration, v. p. 48-61.

O’Brien, J.J., Spry, P.G., Teale, G.S., Jackson, S.E., and Rogers, D., 2015, Major and trace element chemistry of gahnite as an exploration guide to Broken Hill-type Pb-Zn-Ag mineralization in the Broken Hill domain, New South Wales, Australia. Economic Geology, v. 110, p. 1027-1057.

Steadman, J.A., and Spry, P.G., 2015, Metamorphosed Proterozoic Zn-Pb-Ag mineralization in the Foster River area, northern Saskatchewan, Canada. Economic Geology, v. 110, p. 1193-1214.

Bindi, L., Bonazzi, P., Zoppi, M., and Spry, P.G., 2014, Chemical variability in wakabayashilite: a real feature or an analytical artifact? Mineralogical Magazine, v. 78, p. 693-702.

Corriveau, L., and Spry, P.G., 2014, Metamorphosed hydrothermal ore deposits, in Scott, S.D., Geochemistry of Mineral Resources, Treatise on Geochemistry 2nd Edition, Elsevier, New York, v. 13, p. 175-194.

Fornadel, A.P., Spry, P.G., Mathur, R.D., Jackson. S.E., Chapman, J.B., and Girard, I., 2014, Methods for the determination of Te isotopes of minerals in the system Au-Ag-Te by MC-ICP-MS. Journal of Analytical and Atomic Spectroscopy, v. 29, p. 623-647.

Spry, P.G., Mathur, R.D., Bonsall, T.A., Voudouris, P., C., and Melfos, V., 2014, Re-Os evidence for mixed source components in carbonate-replacement Pb-Zn-Ag deposits in the Lavrion district, Attica, Greece. Mineralogy and Petrology, v. 108, p. 503-513.

Full Publication List