[1] Univ Oxford, Res Lab Archaeol & Hist Art, Oxford, England
[2] Amer Sch Class Studies, Wiener Lab Archaeol Sci, Athens, Greece
[3] Univ Sheffield, Dept Archaeol, Sheffield, S Yorkshire, England
[4] Hellen Minist Educ & Religious Affairs Culture &, Ephorea Pieria, Thessaloniki, Greece
[5] Aristotle Univ Thessaloniki, Sch Hist & Archaeol, Thessaloniki, Greece
[6] British Geol Survey, Nat Environm Res Council, Isotope Geosci Lab, Keyworth, Notts, England
[7] Univ Oxford, Inst Archaeol, Oxford, England
[8] Univ Lausanne, Inst Earth Surface Dynam, Lausanne, Switzerland