Identifying FUN inclusions with LA-MC-ICPMS and NanoSIMS

抄録

A small group of CAIs exhibit some fractionated and unknown nuclear (FUN) isotopic effects, e.g., O, Mg, Si, Ca, and Ti, and are called FUN inclusions. These FUN CAIs are characterized by large mass-dependent fractionation effects in Mg, Si, and O, and a few ‰ of mass-independent isotopic anomalies in various elements, such as Ca, Ti, Cr, Sr, Ba, Nd, and Sm.