Secondary mineralization pathways induced by dissimilatory iron reduction of ferrihydrite under advective flow
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چکیده
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Secondary mineralization pathways induced by dissimilatory iron reduction of ferrihydriteunder advective flow
Iron (hydr)oxides not only serve as potent sorbents and repositories for nutrients and contaminants but also provide a terminal electron acceptor for microbial respiration. The microbial reduction of Fe (hydr)oxides and the subsequent secondary solid-phase transformations will, therefore, have a profound influence on the biogeochemical cycling of Fe as well as associated metals. Here we elucida...
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UNLABELLED The transformation of ferrihydrite to stable iron oxides over time has important consequences for biogeochemical cycling of many metals and nutrients. The response of methanogenic activity to the presence of iron oxides depends on the type of iron mineral, but the effects of changes in iron mineralogy on methanogenesis have not been characterized. To address these issues, we construc...
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ژورنال
عنوان ژورنال: Geochimica et Cosmochimica Acta
سال: 2003
ISSN: 0016-7037
DOI: 10.1016/s0016-7037(03)00276-x