Developing Regional Tephrostratigraphic Frameworks: Applications and Challenges.

Karen Fontijn1, David M Pyle2, Victoria Smith3 and Tamsin A Mather2, (1)Université Libre de Bruxelles, Département Géosciences, Environnement et Société (DGES), Brussels, Belgium, (2)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (3)University of Oxford, Oxford, United Kingdom