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 …

Hydrocarbon seeps, deep sea extreme environments where deeply sourced fluids
discharge at the seabed, occur along continental margins across the globe. Energy-rich …

The marine sulfate inventory represents the largest standing pool of electron acceptors,
which, via microbial sulfate reduction, is responsible for roughly half of the organic matter …

Organic-rich carbonate sediments are deposited in a range of environments today and in the
geologic past. A significant part of organic matter (OM) degradation in such sediments often …

Isotopic compositions of coeval sulfide and sulfate have been widely employed to
reconstruct the seawater chemistry evolution over geologic time; however, these signals can …

Although it has been suggested that the trace element patterns of sedimentary pyrite can be
affected by early diagenesis, detailed studies on modern marine environments addressing …

Permanently cold marine sediments are heavily influenced by increased input of iron as a
result of accelerated glacial melt, weathering, and erosion. The impact of such …

Pyrite formation in marine sedimentary environments plays a key role in the global
biogeochemical cycles of carbon, sulfur and iron, regulating Earth's surface redox balance …

Iron speciation and trace metal proxies are commonly applied together in efforts to identify
anoxic settings marked by the presence of free sulfide (euxinia) or dissolved iron …

Sedimentary pyrite formation links the global biogeochemical cycles of carbon, sulfur, and
iron, which, in turn, modulate the redox state of the planet's surficial environment over …