Geological Research with Dr. Leon Long

Dr. Leon Long is a professor in the Department of Geological Sciences at the University of Texas. Dr. Long's research is in isotope geology, especially to use naturally occurring radioactivity and its daughter products as a geologic clock (e.g., to date the crystallization of a magma), and as a geochemical tracer (e.g., to characterize the source rock whose melting produced the magma). Dr. Long is interested in applying the Rb-Sr isotopic age method to clay minerals, one possibility being to date when weathering had produced an ancient soil zone.