She specializes in carbonate petrogenesis, radiogenic isotopes, and geochronology. She co-runs the Facility for Isotope Research and Student Training (FIRST) at Stony Brook, which was established with a Major Research Instrumentation grant from the National Science Foundation. She is a member of the Tender Energy Spectroscopy (TES) research team at the National Synchrotron Light Source II and has been a NSLS user since the late 1990’s. Her research focuses on U-Pb dating of carbonates and fluorite and in understanding U speciation in these minerals. She also focuses on using biogenic carbonates to reconstruct past ocean chemistry, particularly changes in U/Ca and Sr/Ca through the Phanerozoic.