Piatnytsky, Porfyrii
Piatnytsky, Porfyrii [П’ятницький, Порфирій; P’jatnyc'kyj, Porfyrij], b 15 September 1859 in Riga, d 30 December 1940 in Kyiv. Geologist. After graduating from Kharkiv University (1896) he lectured there (1903–20) and served as its rector (1918–20). He worked as a geologist in Krasnodar (1920–2), Moscow (1922–6), and Leningrad (1926–32) before returning to Ukraine in 1932 to become a research associate at the Ukrainian Geological Administration and the Institute of Geological Sciences of the Academy of Sciences of the Ukrainian SSR (from 1938). His major research interests included Precambrian crystalline schists of Ukraine, particularly of the Kryvyi Rih Iron-ore Basin.
[This article originally appeared in the Encyclopedia of Ukraine, vol. 4 (1993).]