Seasonal Changes In Mineralogy, Geochemistry and Microbial Community of Bacteriogenic Iron Oxides (BIOS) Deposited in a Circumneutral Wetland

Andrew G. Gault, Sean Langley, Alexandre Ibrahim, Robert Renaud, Yoshio Takahashi, Christopher Boothman, Jonathan R. Lloyd, Ian D. Clark, F. Grant Ferris, Danielle Fortin

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Changes in the mineralogy, microbial community structure and aquatic geochemistry of bacteriogenic iron oxides (BIOS) deposited at a circumneutral groundwater seep were recorded seasonally. X-ray diffraction and X-ray absorption spectroscopy demonstrated that 2-line ferrihydrite dominated the iron-bearing mineralogy of the BIOS (>60%). Minor proportions of the more crystalline lepidocrocite were also detected in BIOS collected throughout the year (
    Original languageEnglish
    Pages (from-to)161-172
    Number of pages11
    JournalGeomicrobiology Journal
    Volume29
    Issue number2
    DOIs
    Publication statusPublished - Mar 2012

    Keywords

    • Bacteriogenic iron oxides
    • circumneutral iron oxidation
    • iron reduction
    • microbial diversity
    • seasonal

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