Jiri Žák is Professor of Geology at CU and Director of the Continental Tectonics Group. His IRES mentoring expertise covers a wide range of topics related to geologic evolution of continental crust from magmatic systems from migmatites through batholiths to surface volcanic processes, with a particular focus on tectonic setting and emplacement of granite plutons. Other research he has directed is related to dynamics of Precambrian accretionary wedges and mélange formation. He has pursued various tectonic studies in ancient collisional orogens and active margins in Europe, North America, and Antarctica with collaborations with a broad research network established with numerous colleagues from the Czech Republic, Austria, Germany, and United States. His IRES mentoring activities include detailed field mapping, AMS, U-Pb geochronology, petrology, geochemistry, and numerical modeling.Type your paragraph here.