Institution: | 1. St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199164, Russia 2. PO Aerogeologiya, Expedition 3, ul. Krzhizhanovskogo 7/3, Moscow, 117292, Russia 3. Karpinskii All-Russia Research Institute of Geology, Sprednii pr. 74, St. Petersburg, 199026, Russia
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