Research news on carbon mineralization

Carbon mineralization, in the context of carbon sequestration topics, refers to the suite of geochemical and geomicrobiological processes by which inorganic carbon, typically as dissolved CO₂ or bicarbonate, is transformed into stable carbonate minerals such as calcite, magnesite, or siderite. It proceeds via reactions between CO₂-bearing fluids and metal cations (e.g., Ca²⁺, Mg²⁺, Fe²⁺) derived from silicate or oxide minerals, often involving dissolution–precipitation mechanisms controlled by pH, alkalinity, temperature, and fluid–rock ratios. Carbon mineralization is studied as a thermodynamically favorable, long-term CO₂ storage pathway in natural and engineered subsurface systems.

X-raying rocks reveals their carbon-storing capacity

To avoid the worst effects of climate change, many billions of metric tons of industrially generated carbon dioxide will have to be captured and stored away by the end of this century. One place to store such an enormous ...

Widespread 'enhanced rock weathering' could slow global warming

It's one of the latest technologies for sequestering carbon: crush silicate rocks, add to crop soil, and let the rock dust naturally react with carbon dioxide. The reactions bind carbon into stable mineral forms that can ...

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