Heidi E. Höfer 26th ACMM “2020 Visions in Microscopy”

Heidi E. Höfer

Education and Career 1982: Diploma in Mineralogy/Crystallography at Technical University (RWTH) Aachen; Master Thesis at company Dornier System GmbH, Friedrichshafen: Crystal chemistry and electrical conductivity in oxidic La-Cr-Ni-Perovskites. Award: Springorum-Denkmünze presented by RWTH 1989: PhD at the Mineralogic-Petrographic Institute of the University of Cologne: The deformation of Sodium Nitrate single crystals 1990 – 1995: research fellow at Max-Panck-Institute in Mainz (group of Gerhard Brey) 1995 – present: part of the academic staff at the Institute of Geosciences, Goethe-University; in the group of Gerhard Brey until 2014 and of Horst Marschall since 2016 (Mineralogy, petrology and geochemistry). Supervisor of the electron microprobe and SEM labs. 2013: Award: Abraham-Gottlob-Werner-Medaille in Gold presented by the German Mineralogical Society (DMG) Current research · Development of an in situ method with the electron microprobe for the determination of the iron oxidation in solid materials on the microscale (“flank method”) · Determination of Fe2+/Fe3+ with the flank method in synthetic minerals (garnet, pyroxene) and extending the application to natural minerals for oxygen fugacity calculation · Quantitative analysis of light elements (B, N, O) with the electron microprobe · Contract research for the development and quality control of industrial materials with partners from industry · Cooperation with partners from other universities Teaching Basic and advanced lectures in · Geomaterials · Microanalysis with EPMA, SEM, and XRF · Polarizing microscopy (universal stage) · Flank method held at · the Australian National University, Canberra, Sept. 2006 and Aug. 2018 · Goethe Universität Frankfurt, 2011, 2013 · Peking University, Beijing, Dec. 2015 · Geophysical Laboratory, Feb. 2018