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