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 language||English (US)|
|Number of pages||18|
|Journal||ACS Symposium Series|
|State||Published - Dec 1 2002|
ASJC Scopus subject areas
- Chemical Engineering(all)