The Department of Geological Sciences will present two talks at their seminar series.  Claire Browning will present a seminar entitled, "Winds of change in the Cedarberg Formation:  Did dust blown from a glacial landscape fertilize the ocean after the end-Ordovician glaciation?".  Mhairi Reid will present a seminar entitled, "Taphonomy and palaeoecology of an Ophiuroid-stylophoran assemblange from the Devonian Voorstehoek Formation".