Steve Shirey is a pioneering geochemist whose career has greatly advanced our understanding of Earth's crust and mantle evolution through innovative use of geochemical tracers and radiogenic and stable isotopes. Shirey’s research, spanning processes ...

Catherine A. McCammon has been a leading figure in the mineral physics of Earth’s interior throughout her career and has made numerous key discoveries on the redox state of Earth and crystal chemistry at high pressures and temperatures that have been...

Janne Blichert-Toft is a geochemist specializing in radiogenic isotopes and their applications to geochronology, planetary differentiation and, particularly, the evolution of the crust-mantle system of Earth. She is the acknowledged leader in geochem...

Peter Kelemen has integrated geologic observations with geochemistry, geophysics, thermodynamics and continuum mechanics to reveal unexpected links between the dynamics and evolution of Earth’s crust and upper mantle and unveil a geological solut...

Richard J. Walker is the world leader in the field of highly siderophile (or iron-loving) element geochemistry. While this may sound rather esoteric, the impact of Walker’s geochemical and cosmochemical research has changed how we look at Earth...

The formation of igneous rocks is the fundamental process of planetary differentiation. Tim Grove is one of the world’s experts in igneous petrogenesis, having used a unique blend of fieldwork and laboratory experiments to make several key conc...