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 geologicobservations 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 solu...

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...

Earth’s crust is important to us because we happen to live on it. It also contains more than half of Earth’s internal heat production, as well as most of its potassium and phosphorus. Its formation has left the residual mantle in a dramat...

Alex Halliday is a pioneer in the application of isotopic techniques in geochemistry. The past few decades have seen remarkable developments that constrain the timing and nature of events in the early history of the solar system, and Alex has been on...