Jonathan Toma

Jonathan Toma is a Brian J. Skinner Postdoctoral Fellow at Yale University, specializing in Re-Os geochronology and the application of novel isotopic techniques to address questions in tectonics and ore genesis. His research focuses on understanding the timing and mechanisms of graphite formation, supercontinent assembly, and metallogenic processes in ancient continental settings.

His work integrates field-based studies with advanced analytical methods, particularly in Re-Os dating of graphite and pyrite systems. Key research themes include:

• Carbon cycling during Proterozoic supercontinent assembly
• Graphite as a geochronological and geochemical tool
• Linkages between tectonic events and ore deposit formation

Recent studies have examined graphite-bearing systems in Greenland, China, and Finland, with particular attention to their roles in supercontinent evolution and metallogenesis. Toma's research also explores subduction zone processes and the application of Re-Os isotopes to mantle wedge dynamics.

Publications from 2018–2025 consistently demonstrate methodological innovation in geochronology while addressing fundamental questions in Earth's history. His work contributes significantly to understanding Precambrian continental evolution and critical mineral systems.