David Veblen

David Veblen is Professor and former Department Chair in Earth and Planetary Sciences at Johns Hopkins University. He leads a research group specializing in high-resolution transmission electron microscopy (TEM) applied to mineral defects, exsolution microstructures, weathering processes, and phase transformations. The group operates a Philips CM300FEG TEM funded by NSF and Keck Foundation grants.

Current research examines mineral reactions in impactites, slag weathering, pyribole stacking disorders, and alloy phase transformations. Field sites span global localities including Switzerland, Oman, and the American Southwest. Collaborations integrate crystallography with geochemistry to understand metamorphic and diagenetic processes.

Over 100 publications analyze microstructures in diverse materials from dolomites to superconductors. Research has been funded by NSF, NASA, and DOE. Teaches mineralogy, crystallography, and electron microscopy courses.