The Brenner Base Tunnel - a new link through the Alps

km FORTEZZA Venntal Pfitschtal Sengestal Maulser Tal Wolfendorn Bündner schists Austroalpine Crystalline Complex Brixner granite Tonalit Periadriatic fault zone Central gneiss Brenner Base Tunnel Brenner Base Tunnel AUSTRIA ITALY 30.0 35.0 40.0 45.0 50.0 55.0 23 These rock samples are the result of exploratory drilling. They provide information on the nature of the rock and are the basis for optimisation measures.