Dear colleagues, In a lot of the Cedrus charcoal remains from different samples from a Bronze Age site in Syria (Qatna) I found traumatic resin canals. Does anybody know any good literature or information on the causes of traumatic resin canals, especially for Cedrus? Thank you very much in advance, Katleen Deckers --- Dr. Katleen Deckers Naturwissenschaftliche Archäologie Universität Tübingen Rümelinstraße 23, Zi. 316 D-72070 Tübingen 0049.7071.29.78913