Jan Francke presented a paper on bauxite resource evaluations using geophysics at the International Committee for Study of Bauxite, Alumina & Aluminium’s meeting in Zhengzhou, China.  The paper focused on the application of high resolution geophysics for volume calculations in lateritic and karstic bauxites, with examples from Brazil, Indonesia, Jamaica, Turkey, etc.  The paper was entitled “New High-Resolution Geophysics for Bauxite Resource Evaluations”