I currently have responsibility for the Experimental Petrology Facilities and the MicroSpectroscopy Laboratory and have been involved in developing new apparatus and analytical techniques mainly within the Petrology group at Bristol, but also with links to vocanology, geochemistry and paleontology. The majority of my research has been related to the behaviour of volatile components in igneous systems. This ranges from storage and release of volatiles during melting in the mantle, right through to explosive exsolution of gas at volcanic centers.