Welcome to Isotope Geochemistry at The University of Texas at Austin. The Department of Geological Sciences has a wide-ranging program in many aspects of isotope geochemistry, including radiogenic and stable isotope geochemistry as well as U-b and U-Th series geochronology. Research programs in isotope geochemistry in the Department of Geological Sciences are integrated into a number of interdisciplinary areas such as igneous and metamorphic petrology, sedimentary geology, structure and tectonics, hydrogeology, and economic and petroleum geology, marine sciences and climate change as well as archaeology, botany, and environmental studies. The purpose of this webpage is to provide information on the people, programs and facilities involved in isotope geochemistry at the University of Texas at Austin.