Colleen A. Dalton Associate Professor of Earth, Environmental, and Planetary Sciences

Colleen Dalton's webpage


I am a seismologist, and my research is focused on imaging the Earth's interior using seismic waves. The overarching goal of my research program is to determine 3-D variations in the temperature, composition, partial-melt content, and volatile abundance of Earth's mantle. Together these properties exert strong control over mantle convection, the evolution of the planet's interior, and the plate motions at Earth's surface. I take two complementary approaches in addressing these questions. One, I use the amplitudes and travel times of seismic waves to image seismic-wave attenuation and velocity throughout the mantle. Two, I pursue the interpretation of seismic models together with constraints from other disciplines, including petrology, geochemistry, and mineral physics.

Brown Affiliations