It is with great pleasure that we announce that as of July 1st, Prof. Matthew Jackson will join the earth science faculty at UCSB. Matthew is an isotope geochemist and igneous petrologist whose research focuses on understanding the the origins (recycling of subducted material, metasomatism, etc) and length scales (hemispheric to micron-scale) of heterogeneities in the mantle. He employs innovative in situ techniques to get at the composition of lavas, phenocrysts and the melt inclusions they host. Matthew is currently underatking NSF-funded research in Polynesia. Welcome, Matthew!