Softwood Degradation after Being Several Thousand Years in Shore Front Mud
Two man-made wooden objects, called here a “boat” and an “outrigger”, were found above one another in 2004 and 2006 in Kuusamo, Finland. A layer of shore front mud and turf covered them entirely. With partial excavations, samples were taken for age determination and structural studies from both of the items. As measured by the radiocarbon method with a probability of 95.4 %, the items appear to be from periods 5480 – 5300 CalBC and 5025 – 4770 CalBC for the boat and the outrigger, respectively.
Pentti O. Kettunen
P. O. Kettunen et al., "Softwood Degradation after Being Several Thousand Years in Shore Front Mud", Materials Science Forum, Vol. 599, pp. 159-171, 2009