California Institute of Technology
Seismological Laboratory Division of Geological and Planetary Sciences


Qian Yuan

Post Doctoral Scholar in Geophysics

Ph.D., 2022, Geological Sciences, Arizona State University

California Institute of Technology
Seismological Laboratory
1200 E. California Blvd., MC 252-21
So. Mudd Building, Rm 270
Pasadena, CA 91125

Phone: (626) 395-3801
Fax: (626) 564-0715


As a geodynamicist, my research is centered on dynamic processes in the interior of Earth, and how these processes influence surface geological activities such as plate tectonics and volcanic eruptions. I primarily use geodynamic simulations, as well as a range of geophysical observations, petrological and geochemical analyses in pursuing my research.

My current focus is on understanding the origin, morphology and dynamics of the two large-low-shear-wave velocities in the lowest mantle, which we propose may be the mantle remnant of the Moon-forming impactor Theia at 4.5 billion years ago. My long-term goal is to integrate the geophysical, geochemical and planetary processes into a self-consistent model that could better understand the habitability of Earth and beyond.