Biogeochemical cycling of iron is crucial to many environmental processes, such as ocean
productivity, carbon storage, greenhouse gas emissions and the fate of nutrients, toxic …

Mixed-valent iron [Fe (II)-Fe (III)] minerals such as magnetite and green rust have received a
significant amount of attention over recent decades, especially in the environmental …

Mercury is a potent neurotoxin for humans, particularly if the metal is in the form of
methylmercury. Mercury is widely distributed in aquatic ecosystems as a result of …

Microbially mediated iron redox processes are of great significance in the biogeochemical
cycles of elements, which are often coupled with soil organic matter (SOM) in the …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Microorganisms are a primary control on the redox-induced cycling of iron in the
environment. Despite the ability of bacteria to grow using both Fe (II) and Fe (III) bound in …

A tenet of geomicrobiology is that anaerobic life in the subsurface arranges itself into zones,
according to a thermodynamic ladder. Iron reducers, given access to ferric minerals, use …

Microorganisms can oxidize Mn (II) to biogenic Mn oxides (BioMnOx), through enzyme-
mediated processes and non-enzyme-mediated processes, which are generally considered …

Electron-shuttling agents such as pyrogenic carbon (PC) can mediate long-distance electron
transfer and play numerous key roles in aquatic and soil biogeochemical processes. The …

Associations of iron (hydr) oxides (FeOx) with organic carbon are vital in regulating the
stability of soil organic carbon (SOC). Like SOC, FeOx is chemically dynamic in soils …