Robert Stephen John Sparks Chaning Wills Professor of Geology in the Department of Earth Sciences at the University of Bristol. Donald B. Dingwell (born 1958 in Corner Brook, Newfoundland, Canada) is a geoscientist, the director of the Department of Earth and Environmental Sciences and Ordinarius for Mineralogy and Petrology of the Ludwig Maximilian University of Munich Katharine Cashman is an American volcanologist, professor of volcanology at the University of Bristol Terry Plank an American geochemist, volcanologist and professor of Earth science at Columbia College, Columbia University, and the Lamont Doherty Earth Observatory Richard Arculus is an Australian petrologist and volcanologist, formerly a professor of the School of Earth Sciences at the Australian National University. Rosaly Lopes (born 8 January 1957 in Rio de Janeiro, Brazil) is a Senior Scientist at NASA's Jet Propulsion Laboratory specializing in planetary geology and volcanology Clive Oppenheimer (born 1964) is a British volcanologist, and Professor of Volcanology in the Department of Geography of the University of Cambridge Tamsin Mather British Professor of Earth Sciences at the Department of Earth Sciences, University of Oxford.