1922 graduated Simferopol University.
Since 1922 has worked in establishments of USSR Academy of Science. Since 1939 at Institute of Geology Science, USSR Academy of Science. Since 1922 simultaneously instructor, Leningrad University.
1928-1932 instructor, Leningrad Polytechn. Institute; took part in following USSR Academy of Science expeditions. 1914 Radium Expedition.
1928 Pamir Expedition. Tadzhikistan-Pamir Expedition, expeditions to: Transbaykal, Kazakhstan, Central Urals, Crimea, Karelia, Kola Penninsula, etc. 1956 headed Soviet delegation at 20th session of International Geology Congress, Mexico.
1959 headed Soviet delegation at Congress of Oceanographers, New York. 1960 headed Soviet delegate at 47th session of Indian Science Congress. Since 1959 Chairman, Interdept.
Science Council; since 1960 member, Committee Lenin Prizes for Literature and Art.
Religion discourages exploration of science and universe by suppressing curiosity, and denies its followers a broader perspective.