ERC Consolidator Grant · 2022
Silicate alteration in marine sediments: kinetics, pathway, and dependency
Over its long geological history, the overall habitability of Earth has been governed by the chemical alteration of silicate minerals, a reaction that buffers pCO2 and climate. While terrestrial silicate weathering is widely appreciated, marine silicate weathering and reverse weathering (or marine silicate alteration, MSiA, altogether), has long been considered insignificant in the big picture. This paradigm is challenged by recent work that suggests reverse weathering, as an oceanic Si sink, could be three times higher than previously thought. The latest estimates of marine silicate weathering showing its CO2-fixing capacity could be 82% of that of its terrestrial counterpart. Though…
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