Microelectrode Measurements in Stromatolites: Unraveling the Earth's Past?

Pieter T. Visscher, Shelley E. Hoeft, Tonna Marie L. Surgeon, Daniel R. Rogers, Brad M. Bebout, John S. Thompson, R. Pamela Reid

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26 Scopus citations

Abstract

Oxygen, sulfide and pH microelectrodes were used to study the biogeochemistry of modern marine stromatolites in the Exuma Cays, Bahamas. Measurements included chemical characterization of the stromatolite mats, both in stagnant water on the beach during a diel cycle as well as short-term in situ measurements, and determination of O 2 production and consumption. Experiments with slurried stromatolite mats, in combination with sulfide and/or oxygen electrodes, were used to estimate potential rates of sulfate reduction and sulfide oxidation. Combining these measurements, which are instrumental in the understanding of the microbiology associated with stromatolite formation, facilitate a better biogeochemical interpretation of the formation of these sedimentary structures as well as their ancient ancestors.

Original languageEnglish (US)
Pages (from-to)265-282
Number of pages18
JournalACS Symposium Series
Volume811
StatePublished - Dec 1 2002

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Visscher, P. T., Hoeft, S. E., Surgeon, T. M. L., Rogers, D. R., Bebout, B. M., Thompson, J. S., & Reid, R. P. (2002). Microelectrode Measurements in Stromatolites: Unraveling the Earth's Past? ACS Symposium Series, 811, 265-282.