Over the past century a number of models have been developed to explain the vast
stratigraphic distribution of authigenic dolomite. These models include hydrogeological …

The stable isotope composition of O 2, O 3, and H 2 O in the geological past conveys rich
information on history of the Earth system. However, few compounds are known to record O …

Seep sediments are dominated by intensive microbial sulfate reduction coupled to the
anaerobic oxidation of methane (AOM). Through geochemical measurements of incubation …

We present new sulfur and oxygen isotope data in sulfate (δ 34 S SO 4 and δ 18 O SO 4,
respectively), from globally distributed marine and estuary pore fluids. We use this data with …

Isotope signatures of sulfur compounds are key tools for studying sulfur cycling in the
modern environment and throughout earth's history. However, for meaningful interpretations …

The temporal and spatial controls of stream water chemistry in a small, granitic, glacial
catchment were investigated in conjunction with high-resolution hydrological and …

Several enzymatic steps in microbial sulfate reduction (MSR) fractionate the isotope ratios of
33 S/32 S, 34 S/32 S and 18 O/16 O in extracellular sulfate, but the effects of different …

Combined oxygen (O) and nitrogen (N) stable isotope analyses are commonly used in the
source determination of nitrate (NO3−). The source and fate of NO3− are studied based on …

The microbial oxidation of sulfide is a key reaction of the microbial sulfur cycle, recycling
sulfur in its most reduced valence state back to more oxidized forms usable as electron …

We use multiple stable isotope measurements in two highly stratified estuaries located along
the Mediterranean coast of Israel (the Yarqon and the Qishon) to explore the consumption of …