From the Parte-I{~ica Eneolithic pile dwelling in the Ljubljana Moor, Slovenia, timber was collected for dendrochronological investigations. In the river bed of the I{~ica river samples were selected from 1237 vertical piles of ash (Fraxinus sp.), alder (Alnus glutinosa Gaertn.), beech (Fagus sylvaticaL.), fir (Abies alba Mill.), maple (Acer sp.), birch (Betula sp.), hazel (Corylus sp.), hornbeam (Carpinus betulus L.), poplar (Populus sp.), oak(Quercus sp.), willow (Salix sp.), and elm (Ulmus sp.). Those of ash, alder, and beech predominated with 70 %, 9 %, and 7 % respectively. Samples ofash, beech, oak, and silver fir containing more than 45 tree-rings were usedfor tree-ring analyses. 285 samples were cross-dated and three floating chronologies, two of ash and one of beech, were constructed. Their length was 136, 113, and 105 years. The large amount of timber cut in the same calendar year provides information on building activities on the site. The first 14C dates indicate that the pile dwelling existed in the first half of the 3rd millennium BC.
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