Deborah Parke School of Geography, Earth and Environmental SciencesPhD student Contact details AddressSchool of Geography, Earth and Environmental SciencesºÚÁϳԹÏÍø Edgbaston Birmingham B15 2TT UK Deborah Parke is a PhD candidate in Earth Sciences, supervised by Dr Sebastian Watt, on a project entitled: "Examining eruption processes in the Chichinautzin volcanic field, working with samples from the Lake Chalco sediment core, Central Mexico."