Zemyatchenskii Pyotr Andreyevich

(b. 1857). He graduated from the course in Physics and Mathematics at St. Petersburg University, is a professor of the same university. Scientific activities Zemyatchenskii concentrated on studies of soils, geological and mineral resources of European Russia, and in later times to study the minerals and crystallization phenomena. Its main works: "On the geological and soil structure of the county: Lukoyanovskaya (1884), . Ardatov (1885) and Balakhna (1886), . Nizhny Novgorod province and county Zenkovsky province of Poltava (1891) ", . placed in the published, . under the editorship of Professor Dokuchaev, . "Materials for the valuation of land, called provinces," Kaolinite formation of southern Russia "(1896, . doctoral thesis), "The geological and soil studies in Borovichi district of Novgorod Province (1899)," On the genesis of iron ores in the Urals "(1900);" Starobelsk county Kharkov province geologically "(1900);" Der farblosw Chlorit v,
. Flusse Aj. "(1901)," On laterite "(1899);" Silico-magnesio-fluorit "(1906)," Essays on kristallogenezisu "(1909 - 1913). Zemyatchenskii - Editor subdivision mineralogy in this Vocabulary