Precipitation of low-temperature dolomite from an anaerobic microbial consortium: the role of methanogenic Archaea.

@article{Kenward2009PrecipitationOL,
  title={Precipitation of low-temperature dolomite from an anaerobic microbial consortium: the role of methanogenic Archaea.},
  author={Paul A Kenward and Robert H. Goldstein and Luis Antonio Gonz{\'a}lez and Jennifer A. Roberts},
  journal={Geobiology},
  year={2009},
  volume={7 5},
  pages={556-65}
}
Here we report precipitation of dolomite at low temperature (30 degrees C) mediated by a mixed anaerobic microbial consortium composed of dissimilatory iron-reducing bacteria (DIRB), fermenters, and methanogens. Initial solution geochemistry is controlled by DIRB, but after 90 days shifts to a system dominated by methanogens. In live experiments conditions are initially saturated with respect to dolomite (Omega(dol) = 19.40) and increase by two orders of magnitude (Omega(dol) = 2 330.77) only… CONTINUE READING
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