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The Wits School of Geosciences is the largest and most diverse academic Earth Science institution in Africa, with courses in Geology, Geochemistry, Geophysics, Palaeontology, Palaeoanthropology, Geochronology, Environmental Science, Atmospheric Science, Hydrogeology, Economic Geology, and Exploration and Mining Geoscience. In many of these fields, Wits is the main (and in some cases, sole) centre of study in Africa and South Africa.