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Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria
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Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria

DOI:
10.3791/54251-v

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09:45 min

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July 24, 2016

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, , ,
1Department of Geosciences,University of Tuebingen, 2Department of Geological and Atmospheric Sciences,Iowa State University

Capitoli

  • 00:05Titolo
  • 01:17Preface and Column Assembly
  • 03:15Flushing Oxygen and Loading Medium
  • 06:07Inoculation and Sampling
  • 07:33Results: Cyanobacteria Inoculation
  • 08:50Conclusion

Summary

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We simulated a Precambrian ferruginous marine upwelling system in a lab-scale vertical flow-through column. The goal was to understand how geochemical profiles of O2 and Fe(II) evolve as cyanobacteria produce O2. The results show the establishment of a chemocline due to Fe(II) oxidation by photosynthetically produced O2.

Tags

Keywords: Iron(II)-richPrecambrianMarineUpwellingPhotosynthetic BacteriaCyanobacteriaOxygenAqueous IronWater ColumnBanded Iron FormationsGeochemical ConditionsPrecambrian OceanGeo-microbial InvestigationsSediment BodiesSynechococcus 7002AnoxicNitrogenCarbon DioxidePhotosynthesisOxygen ProductionGlass BeadsSterileGas ExchangeButyl Rubber StoppersLuer Lock Glass SyringeStainless Steel Needle

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