Directory

Kurt O Konhauser

picture
Position
Professor
Office
ESB 3-013 A
Phone
780-492-2571
Email
Web Site

Publications
  • Posth, N.R., Huelin, S., Konhauser, K.O., and Kappler, A., 2010. Size, density and composition of cell-mineral aggregates formed during anoxygenic phototrophic Fe(II) oxidation: Impact on modern and ancient environments. Geochimica et Cosmochimica Acta, 74:3476-3493.
  • Bekker, A., Slack, J.F., Planavsky, N., Krapež, B., Hofmann, A., Konhauser, K.O., Rouxel, O.J., and Wing, B.A., 2010. Iron formation: A sedimentary product of the complex interplay among mantle, tectonic, and biospheric processes. Economic Geology, 105:467-508.
  • Papineau, D., DeGregorio, B.T., Stroud, R.M., Steele, A., Pecoits, E., Konhauser, K.O., Wang, J., and Fogel, M.L., 2010. Ancient graphite in the Eoarchean quartz-pyroxene rock from Akilia Island in southwest Greenland. II. Isotopic and chemical compositions and comparison with Paleoproterozoic BIFs. Geochimica et Cosmochimica Acta, 74:5884-5905.
  • Planavsky,  N.J., Rouxel, O., Bekker, A., Lalonde, S.V., Konhauser, K.O., Reinhard, C.T., and Lyons, T., 2010. The evolution of the marine phosphate reservoir. Nature, 467:1088-1090.
  • Steinhofel, G., von Blackenburg, F., Horn, I., Konhauser, K.O., Beukes, N., and Gutzmer, J., 2010. Deciphering formation processes of banded iron formations from the Transvaal and the Hamersley Sequence by comined Si and Fe isotope analysis using UV femtosecond laser ablation.  Geochimica et Cosmochimica Acta 74: 2677-2696.
  • Konhauser, K.O., Pecoits, E., Lalonde, S.V., Papineau, D., Nisbet, E.G., Barley, M.A., Arndt, N.T., Zahnle, K. and Kamber, B.S. 2009.  Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event.  Nature 458: 750-753.
  • Konhauser, K.O. 2009.  Deepening the early oxygen debate.  Nature Geosciences  2: 241-242.
  • Pecoits, E., Gingras, M.K., Kappler, A., Posth, N.R., Barley, M.A. and Konhauser, K.O. 2009.  Petrography and trace element geochemistry of Dales Gorge banded iron formation:  Paragenetic sequence, source and implications for palaeo-ocean chemistry.  Precaambrian Research  172: 163-187.
  • Pecoits, E., Gingras, M.K., Aubet, N., and Konhauser, K.O. 2008.  Ediacaran in Uruguay: Palaeoclimatic and palaeobiologic implications.  Sedimentology  55: 689-719.
  • Lalonde, S.V., Smith, D.S., Owttrim, G.W. and Konhauser, K.O.  2008.  Acid-base properties of cyanobacterial surfaces I:  Influences of growth phase and nitrogen metabolism on surface reactivity.  Geochimica et Cosmochimica Acta  72: 1257-1268.
  • Lalonde, S.V., Smith, D.S., Owttrim, G.W. and Konhauser, K.O. 2008.  Acid-base properties of cyanobacterial surfaces II: Silica as a chemical stressor influencing cell surface reactivity.  Geochimica et Cosmochimica Acta  72: 1269-1280.
  • Konhauser, K.O., Lalonde, S., Amskold, L., and Holland, H.D. 2007.  Was there really an Archean phosphate crisis?  Science  315: 1234.
  • Konhauser, K.O., Amskold, L., Lalonde, S.V., Posth, N.R., Kappler, A. and Anbar, A. 2007.  Decoupling photochemical Fe(II) oxidation from shallow-water BIF deposition.  Earth and Planetary Science Letters  258: 87-100.
  • Lalonde, S., Amskold, L., Warren, L.A. and Konhauser, K.O. 2007.  Surface chemical reactivity and metal adsorptive properties of natural cyanobacterial mats from an alkaline hot spring, Yellowstone National Park.  Chemical Geology  243: 36-52.
  • Konhauser, K.O. 2007.  Introduction to Geomicrobiology.  Blackwell Publishing, 425 pp.

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Research area

Microbe-mineral interactions through time; Origins of banded iron formations; Ancient paleo-redox conditions on Earth; Neoproterozoic glaciations and animal evolution.

Research opportunity

MSc or PhD projects are available that combine lab-based experiments focusing on the partitioning of trace metals to iron oxides, silicates and carbonates with the chemical analyses of Precambrian banded iron formations, cherts and carbonates, respectively, in order to ascertain the composition of the ancient oceans and marine biosphere