The iron sulfides constitute a diverse group of solids and dissolved complexes many of
which play key roles in marine systems. The group is particularly complex in the lower …

The sequestration of sulfur within sedimentary pyrite is a major sink in the global
biogeochemical sulfur cycle and has consequent impacts on the related cycles of carbon …

Life evolved and flourished in the absence of molecular oxygen (02). As the 02 content of
the atmosphere rose to the present level of 21% beginning about two billion years ago …

For more than a decade I have taught a graduate-level course in marine sediment
geochemistry that covers many of the topics discussed in this book. The goal now is to …

Enrichments in reactive iron occur under euxinic marine conditions, that is, where dissolved
sulfide is present in the water column. These enrichments result primarily from the export of …

Over the past decade, the significance of bacteria in the biogeochemical manganese and
iron cycles has gained broad appreciation. Particular interest has been devoted to the …

Using the isotope specificity of 57Fe Mössbauer spectroscopy, we report spectroscopic
observations of Fe (II) reacted with oxide surfaces under conditions typical of natural …

The potential role of outer membrane proteins in electron transfer to insoluble Fe (III) oxides
by Geobacter sulfurreducens was investigated because this organism is closely related to …

Among the wide range of materials used for remediating environmental contaminants,
modified and functionalised nanoclays show particular promise as advanced sorbents …

Dissimilatory metal reducing bacteria (DMRB) are capable of extracellular electron transfer
(EET) to insoluble metal oxides, which are used as external electron acceptors by DMRB for …