Troy Rasbury Associate Professor Department of Geosciences Stony Brook University Co-Director of FIRST (Facility for Isotope Research and Student Training)
I am an associate professor in Geosciences and a member of the Doctoral Program in Anthropology at Stony Brook University. I co-run 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. I am a member of the Tender Energy Spectroscopy (TES) partner user team at the National Synchrotron Light Source II and have been a NSLS user since the late 1990’s. I specialize in carbonate petrogenesis, radiogenic isotopes, and geochronology. My research focuses on U-Pb dating of carbonates and fluorite and in understanding U speciation in these minerals. I also focus on using biogenic carbonates to reconstruct past ocean chemistry, particularly changes in δ11B, U/Ca and Sr/Ca through the Phanerozoic.
A flyscan taken at X26A at NSLS of Sr showing the preservation of the original Jurassic echinoderm structure
A flyscan taken at X26A at NSLS showing Ca, Fe and Sr counts in red, green and blue, respectively
A flyscan taken at X26A at NSLS of Mississippian echinoderms showing the Ka edge of Sr