1·New carbonates will no longer be laid down.
新的碳酸盐将不再沉淀。
2·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.
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。
3·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.
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。
4·Since these carbonates dissolve in acid, the persistence of these mounds indicates that water perhaps less acidic and more favorable for life might have once flowed across Mars.
因为这些碳酸盐可以溶解在酸中，这些岩石能长久保存下来就说明在火星上可能曾经流动着酸性并不太大，更适宜生命存在的水。
5·Most grades contain up to 25% non-attapulgite material in the form of carbonates and other inclusions.
最等级含有高达25 %非凹凸棒材料的形式，碳酸盐和其他夹杂物。