429 YAKOVLEV 



Residence: Metrostroevskaya 1 



Moscow, USSR 

 Telephone: G5 36 21 



YAKOVLEV, N. N. (Geologist-Paleontologist) 



N. N. Yakovlev was born April 27, 1870. He worked on the 

 Geological Committee (now the AU-Union Scientific Research 

 Geological Institute in Leningrad) in 1895. From 1900-1930, he 

 was professor at the Petersburg (Leningrad) Mining Institute. 

 In 1923-26, he was Director of the Geological Committee. He 

 was awarded the title Honored Scientist of R.S. F.S.R. in 1930. 

 In 1948 the U.S.S.R. Academy of Sciences awarded Yakovlev the 

 A. P. Karpinskii Prize for his scientific investigations. He was 

 elected, in 1921, to the U.S.S.R. Academy of Sciences as a 

 Corresponding Member. 



Yakovlev conducted geological investigations in various 

 regions of the country. In the Donbas, from 1892, he partici- 

 pated in a geological survey conducted by the Geological Com- 

 mittee and studied the structure of the Bakhmut salt-bearing 

 basin. He worked out and paleontologically substantiated the 

 stratigraphy of lower Permain sediments. In the Urals, Yakov- 

 lev conducted geological investigations on deposits of coal, iron 

 and other ores; the Caucasus and territories beyond the Cau- 

 casus, he studied various mineral sources. He was the first to. 

 make paleoecological investigations of invertebrates in Russia, 

 particularly of the three Paleozoic groups of animals— brachio- 

 pods, tetracorals and pelma echinoderms. He investigated the 

 origin of structural festures of organisms and the change of 

 these features under the influence of external factors. 

 Bibliography: 



Studies on the Coral Rugosa. Works of the Geological Com- 

 mittee, New Series, 1914, #96. 



Fauna of the upper part of the Paleozoic deposits in the 

 Donetz Basin, I-III. Works of _^the Geological Committee, 

 New Series, 1903-1912, 79, #4-12. 



Attachment of brachiopods as a basis of their species and 

 genus. Works of the Geological Committee, New Series, 

 1908, #48. 



Extinction of animals and plants and reasons according to 

 geologic data. Proceedings of the Geologic Committee, 41, 

 #1, Petrograd, 1922. 



Crinoids and Blastoids of Carboniferous and Permian De- 

 posits of the U.S.S.R. Moscow: 1956. 



