Jonathon Liberda Archaeometry and Geochronology (AGE) Laboratory School of Geography & Earth Sciences McMaster University Hamilton, Ontario, L8S 4K1, Canada Office: General Science Building, Rm 315 Tel: (905) 525 9140 ext 27686 Lab: (905) 525 9140 ext 24180 Email: Jonathon Liberda Departmental Web Page