Båndet jernformation (Danish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Båndet jernformation" in Danish language version.

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doi.org

doi:10.2113/gsecongeo.68.7.1135, November 01, 1973, Preston Cloud. Economic Geology (1973) 68 (7): 1135–1143.: Paleoecological Significance of the Banded Iron-Formation Citat: "...The great iron-formations of this age reflect dramatic events. Ferrous iron residual in stagnant oceans beneath an anoxygenous atmosphere may then have moved into the photic zone on a vast scale because of overturning instigated by climatic change. A previously limited, photosynthetic, procaryotic microbiota, dependent on ferrous iron to maintain ambient oxygen at tolerable levels, then expanded and diversified, converting the iron to insoluble ferric oxides..."
doi:10.1038/461179aCitat: "...argue that the return of an iron ocean, peaking about 1.9 billion years ago, was triggered by a dramatic decline in oxygen, perhaps to values approaching those in the atmosphere before the GOE...The story culminates in the largest observed shift in the chromium-isotope data, about 750 million years ago, corresponding to a big leap in atmospheric oxygen to levels that welcomed the first animals..."
doi:10.1126/science.281.5381.1342

doi:10.2113/gsecongeo.68.7.1135, November 01, 1973, Preston Cloud. Economic Geology (1973) 68 (7): 1135–1143.: Paleoecological Significance of the Banded Iron-Formation Citat: "...The great iron-formations of this age reflect dramatic events. Ferrous iron residual in stagnant oceans beneath an anoxygenous atmosphere may then have moved into the photic zone on a vast scale because of overturning instigated by climatic change. A previously limited, photosynthetic, procaryotic microbiota, dependent on ferrous iron to maintain ambient oxygen at tolerable levels, then expanded and diversified, converting the iron to insoluble ferric oxides..."