Dr. Robert Linnen

Bob Linnen

Professor & Robert Hodder Chair in Economic Geology
Ph.D. McGill University, 1992
Office: BGS 1000B
Labs: BGS 0072, 0162
Phone: 519-661-2111 x.89207
Fax: 519-661-3198
Email: rlinnen@uwo.ca


Research Interests

My research focuses on the behavior of metals in magmatic-hydrothermal systems. My approach is to combine field and experimental studies to identify the mechanisms that are important for concentrating metals and controlling mineralization, then quantify these processes to develop ore deposit models and exploration strategies. Current projects involve investigations of precious metal (Au and PGE) and rare metal (Li, Nb, Ta, REE, Sn, W) deposits.

Selected Publications

  • Millonig, L.J., Linnen, R.L. and Groat, L.A., Vanadium micas and vanadium: Nomenclature, occurrences and significance for low-sulfidation epithermal precious metal deposits. Can. Mineral., Accepted pending revisions.
  • *O’Callaghan, J.W.O, Linnen, R.L., Lightfoot, P.C. and Osinski, G.R., 2017, Contrasting Mineralogical and geochemical characteristics of Sudbury breccia adjacent to footwall Cu-Ni-PGE sulfide in the Creighton and Coleman deposits. Canadian Mineralogist, 55, 909-943.
  • Perrouty, S., Gaillard, N., Piette-Lauzière, N., Mir, R., Bardoux, M., Olivo, G.R., Linnen, R.L., Bérubé, C.L., Lypaczewski, P., Guilmette, C., Feltrin, L. and Morris, W.A., 2017, Structural setting for Canadian Malartic style of gold mineralization in the Pontiac Subprovince, south of the Cadillac - Larder Lake Deformation Zone, Québec, Canada, Ore Geol. Rev. 84, 185-201.
  • Millonig L.J., Beinlich, A., Devine, F., Raudsepp, M. Linnen, R.L. and Groat, L.A., 2017, The Engineer Mine, British Columbia: An Example of Epithermal Au-Ag Mineralization with Mixed Alkaline and Subalkaline Characteristics. Ore Geol. Rev. 83, 235-257.
  • Cao, Y., Linnen, R.L., Good, D., Samson, I.M. and Epstein, R., 2016, The application of portable XRF and benchtop SEM-EDS to Cu-Pd exploration in the Coldwell Alkaline Complex, Ontario, Canada. Geochemistry: Exploration, Environment, Analysis 16, 193-212.
  • O’Callaghan, J.W., Osinski, G. R., Lightfoot, P.C., Linnen, R.L. and Wierich, R.L., 2016, Reconstructing the geochemical signature of Sudbury breccia, Ontario, Canada: Implications for its formation and trace metal content. Econ. Geol. 111, 1705-1729.
  • McNeil, A.G., Linnen, R.L. and Flemming, R.L., (in press) A method for hydrothermal synthesis of columbite-(Mn), tantalite-(Mn), hafnon and zircon at 800-850°C and 200 MPa. Canadian Mineralogist, 53, 1073-1081.
  • Aseri, A.A., Linnen, R.L., Che, X.D., Thibault, Y. and Holtz, F., 2015, Effects of fluorine on the solubilities of Nb, Ta, Zr and Hf minerals in highly fluxed water-saturated haplogranitic melts. Ore Geol. Rev. 64, 736-746.
  • Good D.J., Epstein R., McLean K., Linnen R.L., and Samson I., 2015, Evolution of the Main Zone at the Marathon Cu-PGE Sulfide Deposit, Midcontinent Rift, Canada: Spatial Relationships in a Magma Conduit Setting. Econ. Geol. 110, 983-108.
  • Linnen, R.L., Samson, I.M., Williams-Jones, A.E., and Chakmouradian, A.R., 2014, Geochemistry of the Rare-Earth Element, Nb, Ta, Hf, and Zr deposits. In H.D. Holland and K.K. Turekian ed., Treatise on Geochemistry 2nd ed. vol 13, 543-568. Oxford. Elsevier.
  • Linnen, R.L., Trueman, D.L. and Burt, R., 2014, Niobium and Tantalum, in Critical Metals Handbook, G. Gunn ed., John Wiley & Sons. 361-384.
  • Zhang, J., Linnen, R., Lin, S.F., Davis, D and Martin, R., 2014, Paleoproterozoic Hydrothermal Reactivation in a Neoarchean Orogenic Lode-gold Deposit of the Abitibi Greenstone Belt: U-Pb Monazite Geochronological Evidence from the Young-Davidson Mine, Ontario. Precambrian Research 249, 263-272.
  • Zhang, J., Lin, S., Linnen, R. and Martin, R., 2014, Structural Setting of the Young-Davidson Syenite-hosted Gold Deposit in the Western Cadillac-Larder Lake Deformation Zone, Abitibi Greenstone Belt, Superior Province, Ontario. Precambrian Research 248, 39-59.
  • Linnen, R.L., Samson, I.M., Williams-Jones, A.E., and Chakmouradian, A.R., 2014, Geochemistry of the Rare-earth Element, Nb, Ta, Hf, and Zr deposits. In H.D. Holland and K.K. Turekian ed., Treatise on Geochemistry 2nd ed. vol 13, 543-568. Oxford. Elsevier.
  • Botcharnikov, R.E., Holtz, F., Mungall, J., Beermann, O., Linnen, R., Garbe-Schönberg, D., 2013, Behaviour of gold in a magma at sulfide-sulfate transition: Revisited. Amer. Mineral. 98, 1459-1464.
  • Che, X.D., Linnen, R.L., Wang, R.C., Groat, L.A. and Brand, A.A., 2013, Distribution of trace and rare earth elements in the titanite from tungsten and molybdenum deposits in Yukon and British Columbia, Canada, Canadian Mineralogist 51, 415-438.
  • Che, X.D., Linnen, R.L., Wang, R.C., Aseri, A. and Thibault, Y., 2013, Tungsten solubility in evolved granitic melts: An evaluation of magmatic wolframite. Geochim. Cosmochim. Acta, 106, 84-98.
  • Linnen, R.L., van Lichtervelde, M. and Černý, P., 2012, Granitic Pegmatites as Sources of Strategic Metals. Elements 8, 275-280.

Courses 

  • Earth Sciences 2230A/B: Introduction to Geochemistry
  • Earth Sciences 4432 / Geology 9506: Mineral Deposit Geochemistry
  • Geology 9552A/B: Advanced Mineral Deposit Geochemistry
  • Geology 9508: Analytical Geochemistry - Methods and Interpretation

Current Students

  • Povilas Grigutis, MSc Geology Candidate (Co-Supervisor)
  • Abdullah Aseri, PhD Geology Candidate
  • Luke Howitt, Msc Geology Candidate
  • Ellie Owens, MSc Geology Course-Based Candidate
  • Cassandra Powell, MSc Geology Candidate

Future Students