Klimageschichte der sp?ten Würm-Eiszeit im hinteren Pr?ttigau -Funde von fossilen H?lzern aus den Baugruben der A28a Pr?ttigauerstrasse zwischen Küblis und Serneus 1980 bis 2009, ~(14)C-Datierungen und Holzartbestimmungen

摘要

For the construction of the ?A28a Pr?ttigauer-strasse? between ?Küblis Dalfazza? and ?Serneus Bad? [Canton of Grisons], exploration drillings were conducted on behalf of the civil engineering department of Grisons [?Tiefbauamt Graubünden?], and from 2002 tunneling was done. In several excavation pits and tunnel drives along the new highway, fossil woods 17 m long trunk of stone pines, rootstocks, roots, branches, rotten wood and bark] were frequently discovered. 17 samples were ta ken and sent to laboratories that conduct 14C dating, where of seven samples tree species were determined.