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Kola superdeep borehole in Murmansk region
1979. USSR. Murmansk Region. Chief geologist of the expedition Vladimir Stepanovich Lanev and senior geologist Yuri Pavlovich Smirnov (left to right) during the study of rock samples obtained during drilling of the Kola Superdeep Borehole. The exact date of the shooting has not been established. Semyon Maisterman/TASS