Selenium (Se) contamination in surface and ground water in numerous river basins has
become a critical problem worldwide in recent years. The exposure to Se, either direct …

The biogeochemical cycling of metals in natural systems is often accompanied by stable
isotope fractionation which can now be measured due to recent analytical advances. In …

Traditional stable isotope geochemistry involves isotopes of light elements such as H, C, N,
O, and S, which are measured predominantly by gas-source mass spectrometry (Valley et al …

Isotopic variations usually follow mass-dependent fractionation, meaning that the relative
variations in isotopic ratios scale with the difference in mass of the isotopes involved (eg …

Different approaches are used to study wood provenance, but most of them are based on
tracers in wood that are generally controlled by climatic factors. The strontium isotopic ratio …

Changes in the concentration and isotopic composition of the major constituents in seawater
reflect changes in their sources and sinks. Because many of the processes controlling these …

The stable strontium isotope system (δ 88/86 Sr) has recently been suggested to be a
suitable proxy for determining variations in the strength of the marine carbonate system, the …

This chapter explores the growing body of stable and radiogenic Ca isotope measurements
in high temperature terrestrial materials and covers the emerging applications for Ca isotope …

During the last few decades, contamination of selenium (Se) in groundwater has turned out
to be a major environmental concern to provide safe drinking water. The content of selenium …

The isotopic compositions of natural materials are determined by their parent reservoirs, on
the one hand, and by fractionation mechanisms, on the other hand. Under the right …