Research partially funded by the Geoscience Research Institute was presented in oral and poster presentation formats at The Geological Society of America meetings, held in San Antonio, Texas, 19-22 October 2025.

A poster titled “Machine Learning Algorithms Successfully Predict Mantle Reservoirs of Basalts Using Trace Elements as Proxies for Isotopic Data” described a machine learning classification tool for identifying mantle reservoirs and sources of mid-ocean ridge basalts and ocean island basalts using trace element data. This work enhances the understanding of mantle reservoirs and sources over various time scales.

A talk titled “The Peruvian Coastal Batholith: Along and Across Arc Exploration of Temporal Histories, Compositional Diversity, and Tectonomagmatic Links” presented some of the major findings from this ongoing research project on the Peruvian Coastal Batholith. Spatio-temporal variation of magmatism and magmatic composition are discussed and related to the tectonics of the region in the search for flare-up triggers.

A talk titled “Growth and Internal Evolution of the Box Springs Plutonic Complex, Peninsular Ranges Batholith, Riverside, California” suggested a model for how the granitic rocks within a few miles of Loma Linda University were formed. Conclusions are based on field observations, structural data, geochemistry, and geochronology.