二氧化碳溶解于水的时候形成一种酸，这种酸可以跟矿物起反应生成碳酸盐，这样就能够以相对稳定的状态将碳密闭起来。

Carbon dioxide forms an acid when it dissolves in water. This acid can react with minerals to form carbonates, locking away the carbon in a relatively inert state.

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地理学家们以前就发现橄榄岩暴露于空气中会很快与二氧化碳反应生成碳酸盐，和石灰岩或大理石的反应一样。

Geologists have long known that when peridotite is exposed to the air it can react quickly with carbon dioxide to form carbonates like limestone or marble.

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在实验室的测量表明他们能将捕获的每磅二氧化碳转化为约两磅的碳酸盐。

Their process, which has been tested in the lab, can produce about two pounds of carbonate for every pound of carbon dioxide captured.

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