Facility for Isotope Research and Student Training (FIRST)

The FIRST lab is interested in providing time resolution to all aspects of geology through ages, provenance, and process. Specifically, our laboratory group has two main focuses: U-Pb geochronology of carbonates and B-isotopes. In addition to dating carbonates with U-Pb geochronology, we are also interested in the behavior of U in sedimentary environments. Dr. Rasbury has worked closely with colleagues at the National Synchrotron Light Source (NSLS) and the new National Synchrotron Light Source II (NSLSII – link to ) for decades to understand U speciation in various minerals and the processes by which U is incorporated and removed from carbonates. Recently, we have begun dating fluorite by U-Pb geochronology and are exploring the processes by which F and REEs are enriched in the crust.​