Volcanic eruptions at ocean ridges produce large volumes of glass that is rapidly leached by seawater. Geochemical calculations suggest that this process helps to explain the deposition of carbonates at the end of extreme ice ages.
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Fairchild, I. Neoproterozoic glass-bleeding. Nature Geosci 9, 192–193 (2016). https://doi.org/10.1038/ngeo2643
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DOI: https://doi.org/10.1038/ngeo2643
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