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The aquatic geochemistry of many trace elements is influenced by two important products from the weathering of minerals: iron oxide solid phases and silicic acid (H4SiO4) in the aqueous phase. The chemistry of H4SiO4 on iron oxide surfaces is an interesting mix of sorption and polymerization, and this has been shown to affect the sorption, coprecipitation and transport of many trace elements. Infrared...
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