December 2023 - Jon Spencer, Adjunct Researcher, Department Geosciences at the University of Arizona, Cenozoic tectonic extension in the Sonoran Desert region and reconstruction of the initial distribution of porphyry copper deposits.
September 2023 - Virginia McLemore, Principal Senior Economic Geologist with the New Mexico Bureau of Geologiy and Mineral Resources, REE Potential and Origin of the Cambrian-Ordovician Carbonatites and Episyenites in New Mexico.
May 2023 - Herve Rezeau, Assistant Professor and Lundin Family endowed Chair in Economic Geology at Dept. of Geosciences, University of Arizona, Lithospheric Controls on the Formation of Porphyry Copper Deposits: What could possibly go wrong?
February 2023 - No Speaker