Walter Ehrenreich Tröger

Walter Ehrenreich Tröger (born January 18, 1901 in Dresden-Neustadt , † January 13, 1963 in Freiburg im Breisgau ) was a German mineralogist , geologist and petrograph .

Life

Tröger attended the Dreikönigschule in Dresden and initially also studied in Dresden, from 1921 at the Bergakademie Freiberg , where he graduated in 1925 as a graduate engineer specializing in mining. He did his doctorate in 1928 at the TH Dresden, and two years later did his habilitation with a thesis on the formation of magmatic rocks. He published in the 1930s, work on the classification of igneous rocks and did research in the field of sediment - petrographic and microscopic determination of rock-forming minerals. In November 1933 he signed the German professors' confession of Adolf Hitler . He had been at the Technical University of Dresden since 1937 and since 1944 associate professor and acting head of the Mineralogical Institute, but was dismissed at the end of the war for membership in the NSDAP . In 1947 he worked at the Gmelin Institute for Inorganic Chemistry of the Max Planck Society , before moving to the Clausthal Bergakademie in 1948 . In 1952 he followed Alfred Neuhaus to the chair for mineralogy at the Technical University of Darmstadt . In 1956 he was appointed to succeed Hans Schneiderhöhn as professor of mineralogy, crystallography and petrography at the Albert-Ludwigs-Universität Freiburg .

He is known as the author of the two-volume standard work Optical determination of rock-forming minerals , which has been revised and reissued several times.

Fonts

• Tables for the optical determination of rock-forming minerals (later: optical determination of rock-forming minerals). Volume I: Determination tables . Swiss beard, 1952.
• Optical determination of the rock-forming minerals. Volume II: Text volume. Swiss beard, 1967.
• Special petrography of igneous rocks. A nomenclature compendium with a 1st supplement. Igneous rock names . Publishing house of the German Mineralogical Society eV., Berlin 1935, ISBN 978-3-510-99099-3 .
• The basalt rock tuff on the Hohwiese (Saxon Switzerland) and its “precious stone” soap in the soap basin . In: Freiberg research books . tape 152 . VEB German publishing house for basic industry, Leipzig 1963.

Individual evidence

1. ↑ Prof. Dr.-Ing. habil. Ehrenreich Tröger. Technical University of Dresden, accessed on February 18, 2016 . 
2. ^ Siegfried Grunert, Hartmut Schneider, Bernd Ullrich: The geological teaching and research activity at the Technical University of Dresden since Hanns Bruno Geinitz . Ed .: Technische Universität Dresden, Institute for Geotechnics, Professorship for Applied Geology. ( Online version, PDF file, 197 kB ).
3. ^ History of the Geological Collections. Technical University of Dresden, Institute for Geotechnics, Professorship for Applied Geology, accessed on May 13, 2010 . 
4. ↑ Reiner Pommerin : 175 years of TU Dresden. Volume 1: History of the TU Dresden 1828–2003. Edited on behalf of the Society of Friends and Supporters of the TU Dresden e. V. von Reiner Pommerin, Böhlau, Cologne a. a. 2003, ISBN 3-412-02303-5 , p. 225 ( limited preview in Google book search).
5. ^ Department of Materials and Geosciences. TU Darmstadt, accessed on May 13, 2010 . 
6. ^ Chronicle: Personal data - anniversaries. June 7, 1956, issue no.23. Die Zeit , July 24, 2008, accessed on May 13, 2010 . 

literature

• Hermann Borchert: Walter Ehrenreich Tröger in memoriam: Commemorative address ... In: Messages from the Mineralogical Institute of the University of Freiburg . 232, part 1, 1963.
• Development of mineralogy in teaching and research. (PDF; 2.2 MB) TU Clausthal, accessed on May 13, 2010 . 
• M. Donath: Walter Ehrenreich Tröger. In: H. Freund, A. Berg (Ed.): History of Microscopy , Volume III. Umschau Verlag, Frankfurt am Main 1966.

Web links

• Literature by and about Walter Ehrenreich Tröger in the catalog of the German National Library