Federal Grant Award Summary

The National Science Foundation's Division of Earth Sciences (CFDA 47.050, Geosciences program) awarded Woods Hole Oceanographic Institution a Project Grant of $499,752 on May 1, 2026, for collaborative research investigating the origin of Precambrian iron formations through iron stable isotope geochemistry. The primary deliverables consist of laboratory experimental results and scientific findings designed to test competing hypotheses regarding iron formation genesis. Specifically, the research will generate controlled experimental data on iron isotopic fractionation and manganese incorporation during greenalite precipitation under simulated ancient seawater conditions, producing empirical measurements to compare against geochemical signatures observed in actual iron formation deposits. The research outputs will include peer-reviewed scientific publications, experimental datasets, and contributions to understanding Earth's largest iron ore reserves and ancient ocean chemistry.

The project, scheduled for completion by April 30, 2029, will also deliver workforce development products through graduate and undergraduate student participation in the research activities, providing training and career advancement opportunities for the Earth science workforce. By systematically testing three distinct iron silicate formation scenarios through controlled laboratory experiments, the research aims to resolve an ongoing scientific debate regarding whether primary iron oxides or iron silicate minerals were the original seawater precipitates in ancient iron formations, thereby advancing fundamental knowledge of integrated Earth system processes supported through the Geosciences program's mission.