Biogeosciences

  • Annual Production of Gallium and Germanium could be much higher | Bernd Rendel Prize 2016

    Der Geowissenschaftler Max Frenzel ist einer von zwei Preisträgern des diesjährigen Bernd Rendel-Preises für Geowissenschaften 2016 der Deutschen Forschungsgemeinschaft.   HZDR

    The global supply potential of the high-tech metals gallium and germanium is much greater than actual annual production levels. This is the main conclusion from Max Frenzel’s work. Frenzel, a postgraduate student at the Helmholtz Institute Freiberg for Resource Technology (HIF), which closely cooperates with the TU Bergakademie Freiberg, is one of two recipients of the Bernd Rendel Prize for Geosciences 2016. The prize, awarded by the German Research Foundation (DFG), will be presented on 28th September at the annual conference of the German Geological Society (DGGV) in Innsbruck.

  • Researchers image roots in the ground

    Maximilian Weigand (left) and Prof. Dr. Andreas Kemna of the University of Bonn use electrical impedance tomography to visualize the root activity of plants. © Photo: Volker Lannert/Uni Bonn

    It's a familiar hazard of vacation time: While you're conspicuously absent, your colleagues in the office forget to water and fertilize the plants – often leaving behind nothing but a brownish skeleton. Whether a plant thrives or wastes away depends above all on whether its roots get enough water and nutrients. Geophysicists at the University of Bonn have now visualized such processes for the first time using electrical impedance tomography. The researchers have now published their results in the scientific journal "Biogeosciences".