Pentti Eskola
Pentti Eskola ( Pentti Eskola Eelis; born January 8, 1883 in Lellainen, Honkilahti, Province Turku - Pori, † December 6, 1964 in Helsinki) was a Finnish mineralogist and geologist. Trained as a chemist, he turned to the fundamentals of this science to the crystalline rocks to advance the understanding of their origin. The most important result of his research was the concept of metamorphic facies, an important idea for understanding the rocks of the earth's crust.
Life
Eskola, a farmer's son, studied chemistry at the University of Helsinki, in 1915 his doctorate at the Albert -Ludwigs- University of Freiburg and subsequently specialized in the field of petrology. He dealt with metamorphic rocks - especially in the basement of Scandinavia and England - and suggested 1914 to correlate metamorphic events using characteristic minerals. The concept of metamorphic facies he introduced at this time, in reference to the facies concept of Swiss geologists Amanz Gressly, but this was limited to the characteristics of sedimentary rocks. Previously Eskola in 1919 researched a year in Oslo in Victor Moritz Goldschmidt.
He went in 1921 for two years to Washington DC to work at the Geophysical Laboratory of the Carnegie Institution, among other things, on rocks on the north shore of Lake Huron. He also worked in 1922 for the Geological Survey of Canada. In 1916 he became a lecturer at the University of Helsinki and was from 1924 to 1953 professor of geology and mineralogy. In 1926 he became director of the Institute of Geology at the University of Helsinki. In 1940 he was elected a member of the Leopoldina.