My research and that of my students in petrotectonics spans the range of phenomena that operate at the grain to terrane scale. We apply petrology (igneous, metamorphic, and sedimentary), geochemistry (petrologic thermodynamics and phase equilibria; stable and radiogenic isotopes;microbeam analysis), bedrock mapping and structural geology in field-based research projects that attempt to decipher the tectonic history of the Appalachian-Caledonian and Grenville orogens. My primary research tools are the electron probe microanalyzer and scanning electron microscope. At UK we have a CAMECA SX50 electron probe microanalyzer with CL detector for imaging zircon growth zoning histories. We also make heavy use of a new JEOL scanning electron microscope for high resolution imaging. I teach igneous and metamorphic petrology for undergaduate majors, isotope geochemistry for graduate students, and run regional field trips to New England, Canada, the western U.S., and the Appalachian Blue Ridge. Besides research and teaching, I have a keen interest in undergraduate education and alumni relations. I am now in the seventh and final year as Chair of the Department of Earth and Environmental Sciences. My personal interests include cycling around the Bluegrass, one of the best places to ride a bike in the U.S.