1. Research Laboratory for Archaeology and the History of Art, School of Archaeology, University of Oxford, Oxford OX1 3TG, UK
2. Istituto di Geologia Ambientale e Geoingegneria, CNR, 00015 Monterotondo, Rome, Italy
3. Osservatorio Vesuviano, Istituto Nazionale di Geofisica e Vulcanologia, 80124 Naples, Italy
4. Sezione di Bologna, Istituto Nazionale di Geofisica e Vulcanologia, 40128 Bologna, Italy
5. Department of Earth and Planetary Science, University of California, California 94720-4767, and Berkeley Geochronology Center, Berkeley, California 94709, USA
6. Laboratoire des Sciences du Climat et de l’Environnement (CEA-CNRS-UVSQ), and Université de Paris-Saclay, 91198 Gif-Sur-Yvette, France
7. Ecole française de Rome, Piazza Farnese, 00186 Rome, Italy
8. Scottish Universities Environmental Research Centre, East Kilbride, Scotland G75 0QF, UK
9. Department of Earth & Environmental Science, University of St Andrews, St Andrews KY16 9AJ, UK
10. Department of Earth Sciences, Durham University, Durham DH1 3LE, UK