Fig. 2
(Images courtesy of South West Heritage Trust)
Left: Image of an upright wall post excavated from the Iron Age Glastonbury Lake Village, displaying the ‘dog-leg’ kink characteristic of differential preservation; Centre: timber excavated from a Middle Saxon bridge near Glastonbury, exhibiting characteristic pointed tops, caused by preferential decay of the sapwood due to the tops of the timbers being located above the waterlogged zone; Right: root damage in a wood chip from Glastonbury Lake Village, caused when wood is weakened such that roots can penetrate through it