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Neoproterozoic banded iron formations formed in partially glaciated oceans where iron-rich and oxygenated water masses met, according to ocean modelling.
Information on past environmental conditions stored within high-altitude glaciers is being lost due to accelerated melting associated with climate change, according to ice core analysis from a Swiss glacier.
Noble gas concentrations in the deep North Pacific indicate that sea-level pressure in Antarctic Bottom Water formation regions has changed over the past 2,000 years.