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Green rust - Wikipedia
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A key role for green rust in the Precambrian oceans and the genesis of iron formations
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To obtain permission to re-use content from this article visit RightsLink. Proceedings of the National Academy of Sciences Geobiology Precambrian Research Halevy set up experiments in which he and his team recreated, as closely as possible, the conditions of the ancient, oxygen-free, Precambrian ocean. They found that green rust not only forms under these conditions, but that when left to age, it transforms into the minerals found in Precambrian iron formations -- a combination of iron-bearing oxides, carbonates, and silicates.
Could green rust have been a main vehicle for settling iron out of seawater? Halevy and his team developed models to depict the iron cycle in Earth's early oceans, including the possibility of green rust formation and competition with other mineral shuttles of iron to the seafloor. Their findings suggest that green rust was probably a major player in the iron cycle.
The iron in the green rust later transformed into the minerals we can now observe in the geologic record. Materials provided by Weizmann Institute of Science. Note: Content may be edited for style and length. Science News. Journal Reference : I. Halevy, M. Alesker, E. Schuster, R. Popovitz-Biro, Y.
A key role for green rust in the Precambrian oceans and the genesis of iron formations. Nature Geoscience , ; DOI: ScienceDaily, 31 January Weizmann Institute of Science. A rusty green early ocean?. Retrieved October 7, from www. In theory, those bursts should have turbo-charged