Karl Thomas Fehr

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Karl Thomas Fehr (born January 14, 1954 in Blaichach ; † March 18, 2014 ) was a German mineralogist and professor of mineralogy and petrography at the Ludwig Maximilians University in Munich .

Life

Karl Thomas Fehr began studying mineralogy at the Ludwig Maximilians University (LMU) in Munich after completing his Abitur in Kempten and completing military service in 1974.

The thesis in 1979 was of Hans Gerhard Hucke wood care, in 1983 at the Charles Thomas Fehr with a dissertation on the stability of Grossular -Hydrogrossular- mixed crystals doctorate . After receiving his doctorate in 1983, Fehr was employed as an academic advisor at the Institute for Mineralogy and Petrography at LMU, initially for a limited period of time, and from 1988 as an academic advisor for life.

After his habilitation in mineralogy and petrography on December 16, 1992 at the geoscientific faculty of the LMU, he was granted the license to teach on April 13, 1994. He held his first visiting professorship in petrology in the summer semester of 1996 at the University of Salzburg . Five years later he received another call from Salzburg to head the chair for applied mineralogy , which he refused.

On July 22, 1999, Karl Thomas Fehr was appointed adjunct professor for mineralogy at the Faculty of Geosciences at LMU. Here he was also active as a long-time chairman of the examination board.

After completing his habilitation, his research focus was initially on investigations into the stability and coexistence of minerals, especially from the garnet , epidote and pyroxene groups . Later he concentrated on the research of crystallized calcium silicate hydrates, which are of great importance for the building materials industry, especially for concrete production . He increasingly shifted his main focus to the field of technical mineralogy . His more recent research goals included the study of ferroelectrics, cathode materials for lithium-ion batteries and stress-resistant tool coatings. In this research area he worked as a research group leader in the Bavarian research association forlayer . From 2000 to 2004 he headed the DFG project “ Fe and Zn distribution between silicates and sulfides ”.

Karl Thomas Fehr's research results in the field of technical mineralogy were valued worldwide. He presented his research results for discussion at numerous international congresses.

Karl Thomas Fehr was a member of the Working Group for Applied Mineralogy in Environment and Technology and from 1998 to 2002 a member of the Commission for Technical Mineralogy of the German Mineralogical Society and a member of the International Solvothermal and Hydrothermal Association Council. In addition, Fehr published numerous papers on the crystal chemistry of phosphates and arsenates , on spectroscopic methods , on the oxidation status of iron in glass, on meteorites , impact craters as well as on Roman smithy slag and medieval smelting remains.

Until his death at the age of 60, Karl Thomas Fehr was Academic Director and head of the microprobe laboratory in the Department of Geo- and Environmental Sciences at LMU.

Karl Thomas Fehr had been married since 1978. This marriage resulted in two children.

Publications (selection)

  • Stability of grossular-hydrogrossular mixed crystals in a binary H2O-CO2 gas phase [HO-CO gas phase] , 1982 ( dissertation )

together with:

  • R. Hochleitner: Minerals from the Sabelliite-Theisite group from the Schwaz-Brixlegg mining area, Tyrol. Mitt. Österr. Min. Ges., 142, 1997, pp. 23f.
  • R. Hochleitner: On the crystal chemistry of minerals of the Sabelliite-Theisite group. Supplement z. European J. Mineral., Vol. 9, 1997, p. 158.
  • R. Hochleitner: Jahnsit groups minerals from the pegmatite of Hagendorf-Süd in Eastern Bavaria . Supplement z. European J. Mineral., Vol. 11, 1999, p. 11.
  • M. Huber, R. Hochleitner: Crystal chemistry of aluminum tobermorite: Investigations into the structure. Supplement z. European J. Mineral., Vol. 12, 2000, p. 86
  • R. Hochleitner, G. Tippelt, G. Amthauer: Crystal chemistry of mixed crystals of the series Plumbojarosit-Segnitit . Supplement z. European J. Mineral., Vol. 12, 2000, p. 45
  • R. Hochleitner: Infrared spectroscopy of natural xonotlites . Beih. z. European. J. Mineral., Vol. 14, 2002, p. 70
  • R. Hochleitner, C. Rewitzer, C .: Isokite - new occurrence and new data . DMG annual conference, Bochum, supplement z. European J. Mineral., 2003, p. 84.
  • V. Hoffmann, R. Hochleitner, G. Simon, J. Popp, N. Tarcea, M. Funaki: SNC meteorites: magnetic signature and Raman spectroscopy. Abstract, IUGG / IAGA, 2003, Sapporo.
  • R. Hochleitner, G. Simon, J. Pohl, E. Schmidbauer: Mineralogy and 57Fe Mössbauer spectroscopy of opaque phases of the Neuschwanstein EL6 chondrite . Meteoritics and Planetary Sciences 39/11, 2004. pp. 1643-1648.
  • R. Hochleitner, S. Hölzl, E. Geiss, J. Pohl, J. Faßbinder: Ferrosilicon pseudometeorites from the Burghausen area, Bavaria . Der Aufschluss 55, 2004, pp. 297-303.
  • R. Hochleitner: I sokite from Senhora de Assunção, Portugal: new Find and new data . New Yearbook for Mineralogy, Treatises, Vol. 182/1, 2005, pp. 103-106.
  • J. Schneider, R. Hochleitner, E. Schmidbauer: Electrical conductivity, thermopower, electron microprobe analysis, x-ray diffraction and 57Fe Mössbauer spectroscopy of Mn ilvaite. Part 1: Compositional, structural and Mössbauer data . Physics and Chemistry of Minerals, Vol. 32, 2005, pp. 388-399.
  • E. Schmidbauer. R. Hochleitner, J. Schneider: Electrical conductivity, thermopower, electron microprobe analysis, x-ray diffraction and 57Fe Mössbauer spectroscopy of Mn ilvaite. Part 2: Electrical conductivity and thermopower. Physics and Chemistry of Minerals Vol 32, 2005, pp 400-411.
  • J. Pohl, W. Mayer, R. Hochleitner, J. Fassbinder, E. Geiss, H. Kerscher: A meteorite impact crater field in Eastern Bavaria? A preliminary report. Meteoritics and Planetary Sciences 40/2, 2005, pp. 187-194.
  • R. Hochleitner, S. Weiss, M. Antognini, F. Girland, N. Meisser, S. Ansermet, F. Pezzotta: Exotic zirconiferous nepheline pegmatites from the eastern part of the finero ultrabasic complex, Ivrea zone, southern alps, CH. Supplement z. European J. Mineral., 2006, p. 57
  • R. Hochleitner, E. Schmidbauer, J. Schneider: Mineralogy, Mössbauer spectra and electrical conductivity of triphylite . Phys. Chem. Minerals 34, 2007, pp. 485-494.
  • R. Hochleitner: Keckite - a Special Member of the Jahnsite Group with Trivalent Iron on the B-site. 100th annual meeting of the German Mineralogical Society, Berlin 2008, abstract, p. 138.
  • R. Hochleitner, F. Schimmer: Chemical and mineralogical investigations on Roman iron slag . 100th annual meeting of the German Mineralogical Society, Berlin 2008, abstract, p. 116.
  • R. Hochleitner: Crystal chemistry of Xonotlite Ca 6 Si 6 O 17 (OH) 2 . Part I: Determination of polytypes using X-Ray Powder Diffraction (XRPD) . N. Yearbook Miner. Abh. 186/2, 2009, pp. 153–162
  • KU Hess, R. Hochleitner, G. Giuli, F. Arzilli, A. Fortunati, DB Dingwell: The bearing of composition on the rheology of tektites from the Australasian strewn field: limiting factors of the tektite production process. Annual meeting of the German Mineralogical Society Münster, 2010, abstract
  • A. Günther, N. Hoke, M. Kaliwoda, R. Hochleitner, A. Beck, A. Reul, A. Rott, M. Harbeck: Spectroscopic investigations (FTIR, RAMAN) on forensic and archaeological human skeletal remains. 7th Bone Diagenesis Meeting, Lyon, France, 22. – 25. October 2013

literature

  • Rupert Hochleitner: Karl Thomas Fehr 1954-2014 (obituary) , In: Geologische Mitteilungen 56, June 2014, p. 81f.

Web links

Individual evidence

  1. ↑ LMU Munich: Obituary by Karl Thomas Fehr ( memento of the original from August 19, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed July 15, 2014 @1@ 2Template: Webachiv / IABot / www.mineralogie.geowwissenschaften.uni-muenchen.de
personal data
SURNAME Fehr, Karl Thomas
BRIEF DESCRIPTION German mineralogist
DATE OF BIRTH January 14, 1954
PLACE OF BIRTH Blaichach
DATE OF DEATH March 18, 2014