Professor Andrew Gleadow AO is an Emeritus Professor of Geology and former Head of the School of Earth Sciences at the University of Melbourne. In 2017, he was awarded an AO for distinguished service to the earth sciences and to education, as an academic and researcher in the field of thermo-chronology and landscape evolution, and to professional geological and scientific societies. Prof Gleadow has researched and published widely on the development and application of radiometric dating techniques, particularly in fission track analysis and thermo-chronology. His work included dating of hominin fossil sites in East Africa. He is a Fellow of the Australian Academy of Sciences and a former president of the Geological Society of Australia. He was appointed chair of the Science Advisory Council in November 2013.