Congratulations to Nathan Magnall who successfully defended his thesis ‘Multiscale analysis of the 2011-2012 Cordón Caulle rhyolite lava flow: commonalities in the emplacement of cooling-limited lavas’. Nathan’s supervisors were Mike James (LU), Hugh Tuffen (LU) and Charlotte Vye-Brown (BGS). His internal examiner was Steve Lane and his external examiner was Professor Katharine Cashman (Bristol). Well done Nathan!!