Dr. John W. Moreau National Research Council Postdoctoral Fellow Lecturer (equiv. Asst. Professor) School of Earth Sciences University of Melbourne (Aug. 2008-) Geomicrobiology / Environmental Aqueous Systems (608) 890-0929 UW office (608) 821-3893 USGS office Email: moreau (at) geology (dot) wisc (dot) edu UW Office: A362 Weeks Hall CV | Publications

Research

Many reactions of environmental and geological significance occurring at or near the Earth's surface are mediated by microbes living in aqueous systems. In my research, I use tools from molecular microbiology, aqueous environmental geochemistry, isotope geochemistry, mineralogy, and nanoscience to study microbes and processes that influence the biogeochemical cycling of metals, carbon and sulfur.

Publications (peer-reviewed)

Moreau, J.W., P.K. Weber, M.C. Martin, B. Gilbert, I.D Hutcheon and J.F. Banfield (2007). Extracellular proteins limit the dispersal of biogenic nanoparticles. Science, 316, 1600. Supporting Online Material
Selected by Faculty of 1000 Biology, 07/31/07.

Moreau, J.W., R.I. Webb and J.F. Banfield (2004). Ultrastructure, aggregation-state, and crystal growth of biogenic nanocrystalline sphalerite and wurtzite. American Mineralogist, 89, 950-960.
Selected by Economic Geology: Interesting Papers in Other Journals, 99-6.

Moreau, J.W. and T.G. Sharp (2004). A Transmission electron microscope study of silica and kerogen biosignatures in ~1.9 Ga Gunflint microfossils. Astrobiology, 4, 196-209.

Nesterova, M., J. Moreau, and J.F. Banfield (2003). Model biomimetic studies of templated growth and assembly of nanocrystalline FeOOH. Geochimica et Cosmochimica Acta, 67, 1177-1187.

Banfield, J.F., J.W. Moreau, C.S. Chan, S.A. Welch and B. Little (2001) Mineralogical biosignatures and the search for life on Mars. Astrobiology, 1, 447-465.

Moore, J.M. and the Galileo Solid State Imaging Team (2001) Impact features on Europa: results of the Galileo Europa mission (GEM), Icarus 151, 93-111.


Manuscripts (in prep)

Moreau, J.W., R.A. Zierenberg and J.F. Banfield. Diversity of sulfur-cycling bacteria in a salt marsh contaminated by acid-mine drainage for more than a century (for Applied and Environmental Microbiology).

Moreau, J.W., J. Fournelle and J.F. Banfield. Aqueous and solid partitioning of metals in acid-mine drainage impacted salt marsh sediments (for Environmental Science and Technology).


Presentations (*invited)

*Geological and Planetary Sciences Division (01/14/08), CalTech

J.W. Moreau, E.E. Roden, C. Gerbig, C.S. Kim, G.R. Aiken, J.F. DeWild and D.P. Krabbenhoft (12/07) The Role of dissolved organic matter in environmental mercury methylation by sulfate-reducing bacteria. Fall Meeting of the American Geophysical Union.

Pearce, C.I. and J.W. Moreau (12/07) The Involvement of microbially derived extracellular proteins in nanoparticle formation and aggregation. Fall Meeting of the American Geophysical Union.

*School of Earth Sciences (09/20/07), University of Melbourne

*"Microbial sulfur cycling and the fate of metals in mining-impacted environments" (02/16/07), Geological Sciences, University of Michigan-Ann Arbor.

*"Bioavailability of Mercury and the Diversity of Mercury Methylating Bacteria in Nature" (01/25/07), U.S. Geological Survey, Wisconsin Water Science Center.

*"Biofilms and metals cycling in the environment" (11/03/06), Microbiology, City College of San Francisco.

Moreau, J.W., P.K. Weber, M.C. Martin, R.I. Webb, B. Gilbert, I.D. Hutcheon, and J.F. Banfield (2006) Submicron-scale isotopic variations within biogenic ZnS record the mechanism and kinetics of extracellular metal-sulfide biomineralization. Geochimica et Cosmochimica Acta, 70, A428 (16th Goldschmidt Conference, Melbourne, AU).

*"Sulfate-reducing bacteria and metals bioremediation" (03/10/05), Geological Sciences, University of Missouri at Columbia

Moreau, J.W. and J.F. Banfield (2005) Microbial diversity under long-term forcing by acid-mine drainage and metals contamination in an urban wetland. Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract B14A-07.

*Moreau, J.W., P.K. Weber, M.C. Martin, R.I. Webb, B. Gilbert and J.F. Banfield (2005) Protein distribution and d34S variation within microbially formed metal-sulfide colloids provide clues to the mechanism and kinetics of extracellular biomineralization. Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract B12A02-02.

Jin, Q., J.W. Moreau and J.F. Banfield (2005) Rates of microbial sulfate reduction control the sizes of biogenic iron sulfide aggregates. Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract B12A-03.

Moreau, J.W., R.A. Zierenberg and J.F. Banfield (2004) Microbial community structure responses to long-term acid-mine drainage contamination in a coastal salt marsh. Eos Trans. AGU, 85(47), Fall Meet. Suppl., Abstract B11B-0157.

Moreau, J.W. and J.F. Banfield (2003) Effects of long-term acid mine drainage contamination on the diversity and activity of sulfate-reducing bacteria in a natural salt marsh. Eos Trans. AGU, 84(46), Fall Meet. Suppl., Abstract B42E-03.

Moreau, J.W., R.I. Webb and J.F. Banfield (2002) Formation, transport, aggregation and coarsening of biogenic metal-sulfide nanoparticles in contaminated near-surface aqueous environments. Eos Trans. AGU, 83(47), Fall Meet. Suppl., Abstract B22E-09.

Moreau, J.W., J.A. Saunders and J.F. Banfield (2001) Microbial formation of nanocrystalline sulfides during remediation of metal-contaminated groundwater. Clay Minerals Society Meeting Abstracts.

Moreau, J.W., R.I. Webb and J.F. Banfield (2001) The Mineralogy and microstructure of sedimentary zinc sulfides formed by bacterial sulfate reduction. Eos Trans. AGU, 82(47), Fall Meet. Suppl., Abstract B22A-0124.

Moreau, J.W. and T.G. Sharp (2000) Optical and electron microscopic characterization of Precambrian Gunflint microfossils. Abstracts of the 31st Annual Lunar and Planetary Science Conference, no. 2015.

Moreau, J.W. and T.G. Sharp (2000) The Submicron structure and composition of ancient terrestrial microfossils: taphonomy and the effect of diagenesis on preservation. Eos Trans. AGU, 81(48), Fall Meet. Suppl. Abstract B61B-14.

Moreau, J.W., T.G. Sharp, J. Farmer and L.P. Knauth (1999) Microstructures of Precambrian microfossils: criteria for biogenicity. Eos. Trans. AGU, 80, Fall Meet. Suppl., Abstract B32A-22.

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