The hydrologic sciences and water resources management have long depended on a
combination of in situ measurements and remotely sensed data for research and regulatory …

We employ complementary field and laboratory‐based incubation techniques to explore the
geochemical environment where siderite concretions are actively forming and growing …

For most of Earth's history, the ocean's interior was pervasively anoxic and showed
occasional shifts in ocean redox chemistry between iron-buffered and sulfide-buffered …

Introduction Seagrasses form oxidizing microenvironments around their roots, creating
complex and strong redox gradients, thus affecting the rates of microbial carbon …

Magnetite (Mt) has long been regarded as a stable phase with a low reactivity toward
dissolved sulfide, but natural Mt with varying stoichiometries (the structural Fe (II)/Fe (III) …

We explore the dynamics of the subsurface sulfur, iron and carbon cycles in salt marsh
sediments from East Anglia, United Kingdom. We report measurements of pore fluid and …

Abstract The East Anglian salt marsh system (UK) has recently generated intriguing data
with respect to sediment biogeochemistry. Neighbouring ponds in these salt marshes show …

High‐latitude, coastal wetland biogeochemistry is dynamic in response to climate change,
and yet we do not understand, and thus cannot fully predict, how crucial aspects of these …

Ría of Huelva, located in southwestern Spain, is a highly metal (loid)-contaminated estuary
system where sediments are exceeding action limits in an increasing order for Cd, Zn, Pb …

The concentration and isotopic composition of sedimentary molybdenum (Mo) has been
used to distinguish different redox environments in modern marine settings and in the …