Institute of Geology and Geophysics of the Siberian Branch of the USSR Academy of Sciences

April 1-19, 1976. USSR. Novosibirsk. Authors of the work "Facies of Metamorphism", nominated for the Lenin Prize: Doctor of Geological and Mineralogical Sciences Nikolai Leontievich Dobretsov, Candidate of Geological and Mineralogical Sciences Vladimir Vasilievich Khlestov, head of the work, Deputy Director of the Institute of Geology and Geophysics of the Siberian Branch of the USSR Academy of Sciences Vladimir Stepanovich Sobolev, Doctors of Geological and Mineralogical Sciences Vladimir Viktorovich Reverdatto and Nikolai Vladimirovich Sobolev (left to right) during a conversation at the Institute of Geology and Geophysics of the Siberian Branch of the USSR Academy of Sciences. The exact date of the photo shoot has not been established. Anatoly Polyakov/TASS