RV SONNE Fahrtbericht / Cruise Report SO249 BERING – Origin and Evolution of the Bering Sea:An Integrated Geochronological, Volcanological,Petrological and Geochemical Approach, Leg 1: Dutch Harbor (U.S.A.) - Petropavlovsk-Kamchatsky (Russia),05.06.2016 - 15.07.2016,Leg 2: Petropavlovsk-Kamchatsky (