Creation and Distribution of Cais in the Protoplanetary Nebula

Ca-Al rich refractory mineral inclusions (CAIs) found at 1-10% mass fraction in primitive chondrites appear to be several million years older than the dominant (chondrule) components in the same parent bodies. A prevalent concern is that it is difficult to retain CAIs for this long against gas-drag-induced radial drift into the sun. We assess a hot inner… CONTINUE READING