Iron isotope fractionation has emerged as a critical tracer for deciphering the complex biogeochemical cycling of iron in soils. This process, whereby natural variations in the relative abundance of ...

We combine newly determined isotope fractionation factors of gypsum precipitated in the laboratory with the isotopic compositions of natural anhydrite and gypsum to unravel the sulfate sources of the ...

Deep-sea microbes that “breathe” sulfur prefer that sulfur to be light. In fact, the microbes will “fractionate” heavier sulfur into lighter isotopes. Learning the preferences of these microbes can ...

Atoms are funny things. The tiniest variations can have dramatic macroscopic consequences and, conversely, dramatic macroscopic changes can have subtle influences at the atomic scale. Thus it is that ...

Isotopic analysis primarily involves the separation of isotopes based on the significant differences in mass. The method is effective for identifying the isotopic signature within the inorganic and ...

The Stable Isotope Laboratory in the Department of Geological and Environmental Sciences at Western Michigan University uses known stable isotope techniques for geochemical, hydrological and other ...