Oskar Lenz
Oskar Lenz (13 April 1848 in Leipzig – 1 March 1925 in Sooß) was a German-Austrian geologist and mineralogist born in Leipzig. In 1870, he earned his doctorate in mineralogy and geology at the University of Leipzig. In 1872, he joined as a volunteer at the Geological Survey of Austria, Imperial Geological Reichsanstalt in Vienna. Later that same year he obtained Austrian citizenship. In 1879-80, he led the first trans-Sahara expedition from Morocco to Senegal. The primary purpose of the expedition was to perform geological studies of the region, investigating the possibilities of iron ore deposits. In 1880, with his Spaniard companion Cristobal Benítez, he became only the fourth European to visit the fabled city of Timbuktu. The others being, Alexander Gordon Laing (1826), René Caillié (1828) and Heinrich Barth (1853). In 1885-87, he directed the Austro-Hungarian Congo Expedition, a mission that involved crossing the Africa, African continent from the Congo Basin, Congo e ...
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