Associate Professor, The University of Arizona
I am an Assistant Professor in the Lunar and Planetary Laboratory at the University of Arizona. My research is focused on the origin of the first solar-system solids, ancient presolar circumstellar dust grains, primitive organic compounds, interplanetary dust particles, and the evolution of asteroidal bodies. I am an experimentalist, and I use ultrahigh-resolution ion- and electron-microscopy techniques, including focused-ion-beam scanning-electron microscopy and transmission electron microscopy, to determine the composition and structure of these materials at scales ranging from millimeters down to the atomic. I use such information to determine the chemical and physical evolution of the early solar system and ancient stars.
My group web page is located at http://www.lpl.arizona.edu/PMRG/index.html.