2006/02/04 by Nicolas Dauphas, Olivier Rouxel · 2 citations
Chemistry · Earth and Planetary Sciences · Environmental Science · #Radioactive element chemistry and processing #Paleontology and Stratigraphy of Fossils #Isotope Analysis in Ecology
paper · doi:10.1002/mas.20078
openalex publication_date 2006/02/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Although the processes that govern iron isotope variations in nature are just beginning to be understood, multiple studies attest of the virtue of this system to solve important problems in geosciences and biology. In this article, we review recent advances in the geochemistry, cosmochemistry, and biochemistry of iron isotopes. In Section 2, we briefly address the question of the nucleosynthesis of Fe isotopes. In Section 3, we describe the different methods for purifying Fe and analyzing its isotopic composition. The methods of SIMS, RIMS, and TIMS are presented but more weight is given to measurements by MC-ICPMS. In Section 4, the isotope anomalies measured in extraterrestrial material are briefly discussed. In Section 5, we show how high temperature processes like evaporation, condensation, diffusion, reduction, and phase partitioning can affect Fe isotopic composition. In Section 6, the various low temperature processes causing Fe isotopic fractionation are presented. These involve aqueous and biologic systems.